Zircon MultiScanner L550 OneStep User manual

4 scanning modes:
• StudScan locates centre and edges of stud (wood or metal)
up to 19 mm deep
• DeepScan locates centre and edges of stud up to
38 mm deep
• Metal Scan locates ferrous (magnetic) metal,such as steel,
up to 75 mm deep, and non-ferrous (non-magnetic) metal,
such as copper, up to 38 mm deep
• AC Scan locates live, unshielded AC wires up to 50 mm deep
WireWarning Detection automatically detects and alerts for
live, unshielded AC (alternating current) wires up to 50 mm deep
in StudScan, DeepScan and Metal Scan Modes.
To activate scanner, press and hold Power Button.
If button is not pressed and held, unit shuts off.
FIND A STUD
For best results, hold the scanner as
shown (Figure A) and move slowly
when scanning. Do not touch the
surface during calibration or scan.
1. Set mode to StudScan.
2. Hold scanner flat against wall,
then press and hold Power Button.
In 1 – 2 seconds, the unit will
calibrate. A short beep confirms
that calibration is complete.
DO NOT MOVE SCANNER
DURING CALIBRATION.
3. While holding down the Power
Button, slide the scanner slowly along
the wall. When scanner finds the edge
of a stud, EDGE displays. (Figure B)
4. Continue sliding. When scanner
finds the centre of a stud, CENTER
displays, light illuminates, 3 bars show
signal strength, and a buzzer sounds.
(Figure C)
4. Continue in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the live, unshielded AC wiring. If the unit indicates live
electricity over a large area, reduce the sensitivity of the scanner
to refine the scanning area and more accurately locate the live
AC wiring.
WARNING DO NOT ASSUME THERE ARE NO
LIVE ELECTRICAL WIRES IN THE WALL.
DO NOT TAKE ACTIONS THAT COULD BE DANGEROUS
IF THE WALL CONTAINS A LIVE ELECTRICAL WIRE.
ALWAYS TURN OFF THE ELECTRICAL, GAS, AND WATER
SUPPLIES BEFORE PENETRATING A SURFACE. FAILURE
TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
ELECTRIC SHOCK, FIRE, AND/OR SERIOUS INJURY OR
PROPERTY DAMAGE.
REFINE AC SCAN
1. Release Power Button, then position the scanner over one
of the previous marks. This will reset to a lower sensitivity and
narrow the scan area. (Figure G)
2. Press and hold Power Button, then repeat 3 and 4 under
SCAN FOR AC.
3. Repeat as needed for increased accuracy. (Figure H)
NOTE: AC Scan only detects live (hot) unshielded
AC wiring. Refer to the WARNING statement under
WireWarning Detection below for important details
and warnings about AC detection.
WIREWARNING DETECTION The Zircon®WireWarning
Detection feature works continuously in StudScan, DeepScan and
Metal Scan Modes. When live, unshielded AC voltage is detected,
the WireWarning Detection Indicator shows. If scanning begins
over a live AC wire, the Indicator or middle bars (in AC Scan) will
flash on display continuously.
Use extreme caution under these circumstances, or whenever
live AC wiring is present.
WARNING
THE SCANNER MAY NOT DETECT LIVE
CURRENT IF WIRES ARE MORE THAN
50 mm BELOW THE SCANNED SURFACE, IN CONCRETE,
ENCASED IN CONDUIT, BEHIND A PLYWOOD SHEAR
WALL OR METALLIC WALL COVERING, OR IF MOISTURE IS
PRESENT IN THE ENVIRONMENT OR SCANNED SURFACE.
NOTE: If only two signal bars show
(Figure D), stud may be too deep.
Select DeepScan Mode, and
repeat scan.
Scanner automatically recalibrates when
in use. If arrows appear on the display,
the scanner was calibrated too close to
a stud then moved away. This is ACT
(Auto Correcting Technology)
(Figure E).
SCAN IN DEEPSCAN MODE
DeepScan Mode can detect studs up to 38 mm deep. To scan for
deeper studs, or for use with thicker walls:
1. Set mode to DeepScan.
2. Repeat steps 2 – 4 under FIND A STUD.
SCAN FOR METAL
Use Metal Scan Mode to determine if the stud found is wood,
or a metal stud or pipe.
1. Set mode to Metal Scan.
2. For maximum sensitivity, press and hold Power Button.
Hold the scanner away from the surface until a short beep
confirms calibration is complete,
then place against the surface to
be scanned.
3. While continuing to
hold Power Button, slide the
scanner slowly against the wall.
Mark the spot where the most
middle bars display. For a strong
read, the scanner will light up
and a steady beep will sound. (Figure F)
4. Continue sliding in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the metal object.
NOTE: If the unit indicates a large area of metal,
refine the scan to more accurately find the centre.
REFINE METAL SCAN
1. Release Power Button,
then position the scanner over
one of the previous marks.
This will reset to a lower
sensitivity and narrow the
scan area. (Figure G)
2. Press and hold Power
Button, then repeat 3
and 4 under SCAN FOR METAL.
3. Repeat as needed
for increased accuracy.
(Figure H)
NOTE: If any bars
display, metal is present.
Small targets or targets
deep below the surface may
only show one or two bars,
and the scanner may not be
able to locate the centre of
the metal.
SCAN FOR AC (alternating current)
Use AC Scan Mode to find live, unshielded wiring.
ALWAYS TURN OFF POWER WHEN WORKING NEAR
ELECTRICAL WIRES (EXCEPT WHEN SCANNING).
1. Set mode to AC Scan.
2. Hold scanner flat against wall, then press and hold
Power Button. A short beep confirms that calibration is complete.
DO NOT MOVE SCANNER DURING CALIBRATION.
3. While holding Power Button, slide the scanner slowly
against the wall. Mark the spot where the most middle
bars display. For a strong read, the scanner will light up and a
steady beep will sound. (Figure F)
DeepScan®MetalScan
StudScanACScan
Figure F
DeepScan®MetalScan
StudScanACScan
Figure G
DeepScan®MetalScan
StudScanACScan
Figure H
DeepScan
®
Metal Scan
StudScan AC Scan
SpotLite®Pointer
Backlit LCD Display
Mode Selector
Switch
Battery
Door Tab
ACT™(Auto
Correcting
Technology)
Indicator
Signal
Strength
Indicator
Ergonomic Rubber Grip
Power Button
StudScan
Mode
Indicator
Stud EDGE / CENTER Indicators
Metal Scan
Mode Indicator
Target
Indicator Bars
Low Battery Indicator DeepScan®
Mode
Indicator
Figure B
Figure A
Figure C
Figure D
BEFORE YOU BEGIN
ZIRCON®STUD FINDERS WORK BY SENSING DENSITY CHANGES BEHIND THE WALL. OTHER OBJECTS CAN BE DETECTED
ESPECIALLY IF THEY ARE VERY CLOSE TO THE WALL. DO NOT ASSUME EVERYTHING DETECTED IS A STUD.
- Always use a new 9V alkaline battery with an extended expiration date at least 3 years beyond the current date. Match battery
direction to image inside of battery cavity.
- Do not rely exclusively on the scanner to locate such items behind a surface. Use other information to help locate items before
penetrating the surface, including construction plans, visible points of entry of pipes and wiring into walls such as in a basement, and
standard stud-spacing practices.
- Always start your scan in StudScan Mode which scans through surfaces up to 19 mm deep. Scanning in DeepScan®Mode may
detect an object further behind the wall that may or may not be a stud.
- Always scan for studs at several different heights on the wall and mark the location of every target indicated by the
stud finder. This is called “mapping the wall.” Pipes and other objects will likely not give consistent readings from floor to ceiling,
like a stud would.
- Readings should always be consistent and repeatable.
- Zircon stud finders are recommended for interior use only.
- Studs normally run from floor to ceiling, except above and below windows, and above doors.
- Other objects commonly contained in walls, floors, or ceilings are water pipes, gas lines, firestops, and electrical wiring.
- Sensing depth and accuracy can vary depending on scanning environment conditions such as mineral content, moisture,
texture and consistency of the wall materials.
- Always turn off power when working near electrical wires.
- Depending on the proximity of electrical wiring or pipes to the wall surface, the scanner may detect them in the same manner
as studs. Caution should always be used when nailing, cutting, or drilling in walls, floors, and ceilings that may contain these items.
- Studs and joists are normally spaced 40 or 60 cm apart on centre, are normally 38 mm wide, and may be separated by firestops.
Anything closer together, or of a different width, may not be a stud or joist.
MultiScanner®L550
Multifunction Wall Scanner
TROUBLESHOOTING & CONSTRUCTION TIPS
SITUATION LIKELY CAUSE SOLUTION
Scanner detects
objects other than
studs or finds more
studs than should
be there.
Electrical wiring
and metal or plastic
pipes may be near, or
touching, the back of
the wall surface.
• Scan the area in Metal Scan and / or AC Scan to determine if metal or live,
unshielded AC wiring is present.
• Check for other studs equally spaced to either side at 30, 40, or 60 cm,
or check for the same stud at spots directly above or below the first scan area.
• Standard studs measure approximately 38 mm between edges.
Anything larger or smaller is likely not a stud (unless near door or window).
Area of voltage
appears larger than
actual wire during
AC Scan.
Voltage detection can
spread on drywall by as
much as 30 cm on each
side of the wire.
Narrow the scan detection: 1. Turn scanner off. 2. Turn it on again at the
edge of where the wire was first detected. 3. Repeat scan.
Difficulty detecting
metal.
Scanner calibrated over
metal object.
The scanner may have been calibrated over a metal object, reducing sensitivity.
Try calibrating in another location.
Metal targets too deep
or small.
Scan in both horizontal and vertical directions. Metal sensitivity is increased
when metal object is parallel to sensor (located under the Zircon Logo).
Metal object reading
appears wider than
actual size.
Metal has a greater
density than wood.
To reduce sensitivity in Metal Scan Mode, recalibrate scanner over either of
first two marks (see steps under REFINE METAL SCAN).
Constant readings of
studs near windows
and doors.
Multiple studs are
in use.
Double and triple studs are sometimes used around doors and windows.
Headers are used above them. Detect outer edges so you know where
to begin.
Electrical wires
suspected but
none detected.
Wires are shielded
by a metal conduit,
braided wire or
metallic wall covering.
Use Metal Scan Mode to scan for metal, wire, or metal conduit.
Wires deeper than
50 mm from
the surface might
not be detected.
If there is an outlet switch, turn it to ON position while scanning, but turn
OFF when working near the wires. Use extra caution if the area has
plywood, thick wood backing behind drywall, or walls that are thicker
than normal.
Wires may not be live. Plug a lamp into the outlet and turn it on to test whether wires are live.
Low Battery Indicator
flashes and scanner
does not operate.
Low battery. Install a new 9V alkaline battery with an extended expiration date.
GB
Visit uk.zircon.com for the
most current instructions.
ZirconCorporation ZirconTV
ZirconTools
|
ZirconToolPro ZirconTools
AC Scan /
WireWarning®
Detection
Indicator
Figure E
WORKING WITH DIFFERENT MATERIALS
Wallpaper This scanner functions normally on walls covered
with wallpaper or fabric, unless the materials are metallic
foil, contain metallic fibres, or are still wet after application.
Wallpaper may need to dry for several weeks after application.
Freshly painted walls Paint may take a week or longer to dry
after application. If it is difficult to locate a stud in either stud
scanning modes on dry or freshly-dried paint, switch to Metal
Scan Mode to locate the nails or drywall screws holding drywall
to the studs.
Lath and plaster Due to irregularities in plaster thickness,
it is difficult for this scanner to locate studs in either stud-
scanning mode. Switch mode to Metal Scan Mode to locate the
nail heads holding wood lath to the studs. If the plaster has
metal mesh reinforcement, the scanner will be unable to detect
studs through that material.
Highly textured walls or acoustic ceilings When scanning
a ceiling or wall with an uneven surface, place thin cardboard
on the surface to be scanned and scan over the cardboard in
DeepScan Mode. If irregular scanning results are received, switch
to Metal Scan Mode to locate nails or drywall screws that line
up vertically where a stud or joist is positioned.
Wood flooring, subflooring, or gypsum drywall over
plywood sheathing Use DeepScan Mode and move
the scanner slowly. The Signal Strength Indicator may only
display a few bars when the scanner locates a stud through
a thick surface.
This scanner cannot scan for wood studs and joists through
carpet and padding. In problematic situations, try using Metal
Scan Mode to locate nails or screws that may line up vertically
or horizontally where a stud or joist is respectively positioned.
NOTE: Sensing depth and accuracy can vary depending
on scanning environment conditions such as mineral
content, moisture, texture, and consistency of the
wall materials.
Electrical wiring and pipes Depending on the proximity of
electrical wiring or pipes to the wall surface, the scanner may
detect them in the same manner as studs.
Caution should always be used when nailing, cutting, or drilling in
walls, floors, and ceilings that may contain these items.
Studs and joists are normally spaced 40 or 60 cm apart
on centre and are 38 mm wide. Anything closer together, or of
a different width, may not be a stud or joist.
LIMITED TWO-YEAR WARRANTY
Zircon Corporation (“Zircon”) warrants to the
original purchaser (or original user by gift) that this
product will be free from defects in materials and
workmanship for two years from date of purchase.
This warranty is limited to the electronic circuitry of
the product, and specifically excludes consumable
parts, including batteries, and software, even if
packaged with the product. Defects caused by abuse,
modification, handling contrary to these instructions,
other unreasonable use, or neglect are not covered
under this warranty. No liability is accepted for
normal wear and tear and minor defects which do not
detract from the function of the product. This Limited
Warranty is in addition to the statutory rights to
which purchaser is entitled and which are not limited
by this warranty.
THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IF ANY IMPLIED
WARRANTIES ARE APPLICABLE, THEY ARE LIMITED TO
THE TWO-YEAR PERIOD DEFINED ABOVE. IN NO EVENT
WILL ZIRCON BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING
FROM POSSESSION, USE, OR MALFUNCTION OF THIS
PRODUCT. NO OTHER REPRESENTATIONS OR CLAIMS OF
A SIMILAR NATURE WILL BIND OR OBLIGATE ZIRCON.
Any in-warranty defective product returned to the
place of purchase with original proof of purchase
will be replaced or purchase price refunded at
retailer’s option. This Limited Warranty applies only
to products purchased within the European Economic
Area and United Kingdom. For warranties applicable to
Zircon products purchased in other geographical areas,
see www.zircon.com/warranty.
For questions about this warranty or
Zircon products, contact:
Customer Service:
[phone] or [phone]
Monday–Friday, 8:00 a.m. to 5:00 p.m. PST
www.zircon.com • [e-mail]
©2019 Zircon Corporation • P/N 67794 • Rev B 07/19
ACT, DeepScan, MultiScanner, SpotLite, WireWarning
and Zircon are registered trademarks or trademarks
of Zircon Corporation.

4 scanning modes:
• StudScan locates centre and edges of stud (wood or metal)
up to 19 mm deep
• DeepScan locates centre and edges of stud up to
38 mm deep
• Metal Scan locates ferrous (magnetic) metal,such as steel,
up to 75 mm deep, and non-ferrous (non-magnetic) metal,
such as copper, up to 38 mm deep
• AC Scan locates live, unshielded AC wires up to 50 mm deep
WireWarning Detection automatically detects and alerts for
live, unshielded AC (alternating current) wires up to 50 mm deep
in StudScan, DeepScan and Metal Scan Modes.
To activate scanner, press and hold Power Button.
If button is not pressed and held, unit shuts off.
FIND A STUD
For best results, hold the scanner as
shown (Figure A) and move slowly
when scanning. Do not touch the
surface during calibration or scan.
1. Set mode to StudScan.
2. Hold scanner flat against wall,
then press and hold Power Button.
In 1 – 2 seconds, the unit will
calibrate. A short beep confirms
that calibration is complete.
DO NOT MOVE SCANNER
DURING CALIBRATION.
3. While holding down the Power
Button, slide the scanner slowly along
the wall. When scanner finds the edge
of a stud, EDGE displays. (Figure B)
4. Continue sliding. When scanner
finds the centre of a stud, CENTER
displays, light illuminates, 3 bars show
signal strength, and a buzzer sounds.
(Figure C)
4. Continue in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the live, unshielded AC wiring. If the unit indicates live
electricity over a large area, reduce the sensitivity of the scanner
to refine the scanning area and more accurately locate the live
AC wiring.
WARNING DO NOT ASSUME THERE ARE NO
LIVE ELECTRICAL WIRES IN THE WALL.
DO NOT TAKE ACTIONS THAT COULD BE DANGEROUS
IF THE WALL CONTAINS A LIVE ELECTRICAL WIRE.
ALWAYS TURN OFF THE ELECTRICAL, GAS, AND WATER
SUPPLIES BEFORE PENETRATING A SURFACE. FAILURE
TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
ELECTRIC SHOCK, FIRE, AND/OR SERIOUS INJURY OR
PROPERTY DAMAGE.
REFINE AC SCAN
1. Release Power Button, then position the scanner over one
of the previous marks. This will reset to a lower sensitivity and
narrow the scan area. (Figure G)
2. Press and hold Power Button, then repeat 3 and 4 under
SCAN FOR AC.
3. Repeat as needed for increased accuracy. (Figure H)
NOTE: AC Scan only detects live (hot) unshielded
AC wiring. Refer to the WARNING statement under
WireWarning Detection below for important details
and warnings about AC detection.
WIREWARNING DETECTION The Zircon®WireWarning
Detection feature works continuously in StudScan, DeepScan and
Metal Scan Modes. When live, unshielded AC voltage is detected,
the WireWarning Detection Indicator shows. If scanning begins
over a live AC wire, the Indicator or middle bars (in AC Scan) will
flash on display continuously.
Use extreme caution under these circumstances, or whenever
live AC wiring is present.
WARNING
THE SCANNER MAY NOT DETECT LIVE
CURRENT IF WIRES ARE MORE THAN
50 mm BELOW THE SCANNED SURFACE, IN CONCRETE,
ENCASED IN CONDUIT, BEHIND A PLYWOOD SHEAR
WALL OR METALLIC WALL COVERING, OR IF MOISTURE IS
PRESENT IN THE ENVIRONMENT OR SCANNED SURFACE.
NOTE: If only two signal bars show
(Figure D), stud may be too deep.
Select DeepScan Mode, and
repeat scan.
Scanner automatically recalibrates when
in use. If arrows appear on the display,
the scanner was calibrated too close to
a stud then moved away. This is ACT
(Auto Correcting Technology)
(Figure E).
SCAN IN DEEPSCAN MODE
DeepScan Mode can detect studs up to 38 mm deep. To scan for
deeper studs, or for use with thicker walls:
1. Set mode to DeepScan.
2. Repeat steps 2 – 4 under FIND A STUD.
SCAN FOR METAL
Use Metal Scan Mode to determine if the stud found is wood,
or a metal stud or pipe.
1. Set mode to Metal Scan.
2. For maximum sensitivity, press and hold Power Button.
Hold the scanner away from the surface until a short beep
confirms calibration is complete,
then place against the surface to
be scanned.
3. While continuing to
hold Power Button, slide the
scanner slowly against the wall.
Mark the spot where the most
middle bars display. For a strong
read, the scanner will light up
and a steady beep will sound. (Figure F)
4. Continue sliding in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the metal object.
NOTE: If the unit indicates a large area of metal,
refine the scan to more accurately find the centre.
REFINE METAL SCAN
1. Release Power Button,
then position the scanner over
one of the previous marks.
This will reset to a lower
sensitivity and narrow the
scan area. (Figure G)
2. Press and hold Power
Button, then repeat 3
and 4 under SCAN FOR METAL.
3. Repeat as needed
for increased accuracy.
(Figure H)
NOTE: If any bars
display, metal is present.
Small targets or targets
deep below the surface may
only show one or two bars,
and the scanner may not be
able to locate the centre of
the metal.
SCAN FOR AC (alternating current)
Use AC Scan Mode to find live, unshielded wiring.
ALWAYS TURN OFF POWER WHEN WORKING NEAR
ELECTRICAL WIRES (EXCEPT WHEN SCANNING).
1. Set mode to AC Scan.
2. Hold scanner flat against wall, then press and hold
Power Button. A short beep confirms that calibration is complete.
DO NOT MOVE SCANNER DURING CALIBRATION.
3. While holding Power Button, slide the scanner slowly
against the wall. Mark the spot where the most middle
bars display. For a strong read, the scanner will light up and a
steady beep will sound. (Figure F)
DeepScan®Metal Scan
StudScanAC Scan
Figure F
DeepScan®Metal Scan
StudScanACScan
Figure G
DeepScan®Metal Scan
StudScanAC Scan
Figure H
DeepScan
®
Metal Scan
StudScan AC Scan
SpotLite®Pointer
Backlit LCD Display
Mode Selector
Switch
Battery
Door Tab
ACT™(Auto
Correcting
Technology)
Indicator
Signal
Strength
Indicator
Ergonomic Rubber Grip
Power Button
StudScan
Mode
Indicator
Stud EDGE / CENTER Indicators
Metal Scan
Mode Indicator
Target
Indicator Bars
Low Battery Indicator DeepScan®
Mode
Indicator
Figure B
Figure A
Figure C
Figure D
BEFORE YOU BEGIN
ZIRCON®STUD FINDERS WORK BY SENSING DENSITY CHANGES BEHIND THE WALL. OTHER OBJECTS CAN BE DETECTED
ESPECIALLY IF THEY ARE VERY CLOSE TO THE WALL. DO NOT ASSUME EVERYTHING DETECTED IS A STUD.
- Always use a new 9V alkaline battery with an extended expiration date at least 3 years beyond the current date. Match battery
direction to image inside of battery cavity.
- Do not rely exclusively on the scanner to locate such items behind a surface. Use other information to help locate items before
penetrating the surface, including construction plans, visible points of entry of pipes and wiring into walls such as in a basement, and
standard stud-spacing practices.
- Always start your scan in StudScan Mode which scans through surfaces up to 19 mm deep. Scanning in DeepScan®Mode may
detect an object further behind the wall that may or may not be a stud.
- Always scan for studs at several different heights on the wall and mark the location of every target indicated by the
stud finder. This is called “mapping the wall.” Pipes and other objects will likely not give consistent readings from floor to ceiling,
like a stud would.
- Readings should always be consistent and repeatable.
- Zircon stud finders are recommended for interior use only.
- Studs normally run from floor to ceiling, except above and below windows, and above doors.
- Other objects commonly contained in walls, floors, or ceilings are water pipes, gas lines, firestops, and electrical wiring.
- Sensing depth and accuracy can vary depending on scanning environment conditions such as mineral content, moisture,
texture and consistency of the wall materials.
- Always turn off power when working near electrical wires.
- Depending on the proximity of electrical wiring or pipes to the wall surface, the scanner may detect them in the same manner
as studs. Caution should always be used when nailing, cutting, or drilling in walls, floors, and ceilings that may contain these items.
- Studs and joists are normally spaced 40 or 60 cm apart on centre, are normally 38 mm wide, and may be separated by firestops.
Anything closer together, or of a different width, may not be a stud or joist.
MultiScanner®L550
Multifunction Wall Scanner
TROUBLESHOOTING & CONSTRUCTION TIPS
SITUATION LIKELY CAUSE SOLUTION
Scanner detects
objects other than
studs or finds more
studs than should
be there.
Electrical wiring
and metal or plastic
pipes may be near, or
touching, the back of
the wall surface.
• Scan the area in Metal Scan and / or AC Scan to determine if metal or live,
unshielded AC wiring is present.
• Check for other studs equally spaced to either side at 30, 40, or 60 cm,
or check for the same stud at spots directly above or below the first scan area.
• Standard studs measure approximately 38 mm between edges.
Anything larger or smaller is likely not a stud (unless near door or window).
Area of voltage
appears larger than
actual wire during
AC Scan.
Voltage detection can
spread on drywall by as
much as 30 cm on each
side of the wire.
Narrow the scan detection: 1. Turn scanner off. 2. Turn it on again at the
edge of where the wire was first detected. 3. Repeat scan.
Difficulty detecting
metal.
Scanner calibrated over
metal object.
The scanner may have been calibrated over a metal object, reducing sensitivity.
Try calibrating in another location.
Metal targets too deep
or small.
Scan in both horizontal and vertical directions. Metal sensitivity is increased
when metal object is parallel to sensor (located under the Zircon Logo).
Metal object reading
appears wider than
actual size.
Metal has a greater
density than wood.
To reduce sensitivity in Metal Scan Mode, recalibrate scanner over either of
first two marks (see steps under REFINE METAL SCAN).
Constant readings of
studs near windows
and doors.
Multiple studs are
in use.
Double and triple studs are sometimes used around doors and windows.
Headers are used above them. Detect outer edges so you know where
to begin.
Electrical wires
suspected but
none detected.
Wires are shielded
by a metal conduit,
braided wire or
metallic wall covering.
Use Metal Scan Mode to scan for metal, wire, or metal conduit.
Wires deeper than
50 mm from
the surface might
not be detected.
If there is an outlet switch, turn it to ON position while scanning, but turn
OFF when working near the wires. Use extra caution if the area has
plywood, thick wood backing behind drywall, or walls that are thicker
than normal.
Wires may not be live. Plug a lamp into the outlet and turn it on to test whether wires are live.
Low Battery Indicator
flashes and scanner
does not operate.
Low battery. Install a new 9V alkaline battery with an extended expiration date.
GB
Visit uk.zircon.com for the
most current instructions.
ZirconCorporation ZirconTV
ZirconTools
|
ZirconToolPro ZirconTools
AC Scan /
WireWarning®
Detection
Indicator
Figure E
WORKING WITH DIFFERENT MATERIALS
Wallpaper This scanner functions normally on walls covered
with wallpaper or fabric, unless the materials are metallic
foil, contain metallic fibres, or are still wet after application.
Wallpaper may need to dry for several weeks after application.
Freshly painted walls Paint may take a week or longer to dry
after application. If it is difficult to locate a stud in either stud
scanning modes on dry or freshly-dried paint, switch to Metal
Scan Mode to locate the nails or drywall screws holding drywall
to the studs.
Lath and plaster Due to irregularities in plaster thickness,
it is difficult for this scanner to locate studs in either stud-
scanning mode. Switch mode to Metal Scan Mode to locate the
nail heads holding wood lath to the studs. If the plaster has
metal mesh reinforcement, the scanner will be unable to detect
studs through that material.
Highly textured walls or acoustic ceilings When scanning
a ceiling or wall with an uneven surface, place thin cardboard
on the surface to be scanned and scan over the cardboard in
DeepScan Mode. If irregular scanning results are received, switch
to Metal Scan Mode to locate nails or drywall screws that line
up vertically where a stud or joist is positioned.
Wood flooring, subflooring, or gypsum drywall over
plywood sheathing Use DeepScan Mode and move
the scanner slowly. The Signal Strength Indicator may only
display a few bars when the scanner locates a stud through
a thick surface.
This scanner cannot scan for wood studs and joists through
carpet and padding. In problematic situations, try using Metal
Scan Mode to locate nails or screws that may line up vertically
or horizontally where a stud or joist is respectively positioned.
NOTE: Sensing depth and accuracy can vary depending
on scanning environment conditions such as mineral
content, moisture, texture, and consistency of the
wall materials.
Electrical wiring and pipes Depending on the proximity of
electrical wiring or pipes to the wall surface, the scanner may
detect them in the same manner as studs.
Caution should always be used when nailing, cutting, or drilling in
walls, floors, and ceilings that may contain these items.
Studs and joists are normally spaced 40 or 60 cm apart
on centre and are 38 mm wide. Anything closer together, or of
a different width, may not be a stud or joist.
LIMITED TWO-YEAR WARRANTY
Zircon Corporation (“Zircon”) warrants to the
original purchaser (or original user by gift) that this
product will be free from defects in materials and
workmanship for two years from date of purchase.
This warranty is limited to the electronic circuitry of
the product, and specifically excludes consumable
parts, including batteries, and software, even if
packaged with the product. Defects caused by abuse,
modification, handling contrary to these instructions,
other unreasonable use, or neglect are not covered
under this warranty. No liability is accepted for
normal wear and tear and minor defects which do not
detract from the function of the product. This Limited
Warranty is in addition to the statutory rights to
which purchaser is entitled and which are not limited
by this warranty.
THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IF ANY IMPLIED
WARRANTIES ARE APPLICABLE, THEY ARE LIMITED TO
THE TWO-YEAR PERIOD DEFINED ABOVE. IN NO EVENT
WILL ZIRCON BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING
FROM POSSESSION, USE, OR MALFUNCTION OF THIS
PRODUCT. NO OTHER REPRESENTATIONS OR CLAIMS OF
A SIMILAR NATURE WILL BIND OR OBLIGATE ZIRCON.
Any in-warranty defective product returned to the
place of purchase with original proof of purchase
will be replaced or purchase price refunded at
retailer’s option. This Limited Warranty applies only
to products purchased within the European Economic
Area and United Kingdom. For warranties applicable to
Zircon products purchased in other geographical areas,
see www.zircon.com/warranty.
For questions about this warranty or
Zircon products, contact:
Customer Service:
[phone] or [phone]
Monday–Friday, 8:00 a.m. to 5:00 p.m. PST
www.zircon.com • [e-mail]
©2019 Zircon Corporation • P/N 67794 • Rev B 07/19
ACT, DeepScan, MultiScanner, SpotLite, WireWarning
and Zircon are registered trademarks or trademarks
of Zircon Corporation.

4 scanning modes:
• StudScan locates centre and edges of stud (wood or metal)
up to 19 mm deep
• DeepScan locates centre and edges of stud up to
38 mm deep
• Metal Scan locates ferrous (magnetic) metal,such as steel,
up to 75 mm deep, and non-ferrous (non-magnetic) metal,
such as copper, up to 38 mm deep
• AC Scan locates live, unshielded AC wires up to 50 mm deep
WireWarning Detection automatically detects and alerts for
live, unshielded AC (alternating current) wires up to 50 mm deep
in StudScan, DeepScan and Metal Scan Modes.
To activate scanner, press and hold Power Button.
If button is not pressed and held, unit shuts off.
FIND A STUD
For best results, hold the scanner as
shown (Figure A) and move slowly
when scanning. Do not touch the
surface during calibration or scan.
1. Set mode to StudScan.
2. Hold scanner flat against wall,
then press and hold Power Button.
In 1 – 2 seconds, the unit will
calibrate. A short beep confirms
that calibration is complete.
DO NOT MOVE SCANNER
DURING CALIBRATION.
3. While holding down the Power
Button, slide the scanner slowly along
the wall. When scanner finds the edge
of a stud, EDGE displays. (Figure B)
4. Continue sliding. When scanner
finds the centre of a stud, CENTER
displays, light illuminates, 3 bars show
signal strength, and a buzzer sounds.
(Figure C)
4. Continue in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the live, unshielded AC wiring. If the unit indicates live
electricity over a large area, reduce the sensitivity of the scanner
to refine the scanning area and more accurately locate the live
AC wiring.
WARNING DO NOT ASSUME THERE ARE NO
LIVE ELECTRICAL WIRES IN THE WALL.
DO NOT TAKE ACTIONS THAT COULD BE DANGEROUS
IF THE WALL CONTAINS A LIVE ELECTRICAL WIRE.
ALWAYS TURN OFF THE ELECTRICAL, GAS, AND WATER
SUPPLIES BEFORE PENETRATING A SURFACE. FAILURE
TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
ELECTRIC SHOCK, FIRE, AND/OR SERIOUS INJURY OR
PROPERTY DAMAGE.
REFINE AC SCAN
1. Release Power Button, then position the scanner over one
of the previous marks. This will reset to a lower sensitivity and
narrow the scan area. (Figure G)
2. Press and hold Power Button, then repeat 3 and 4 under
SCAN FOR AC.
3. Repeat as needed for increased accuracy. (Figure H)
NOTE: AC Scan only detects live (hot) unshielded
AC wiring. Refer to the WARNING statement under
WireWarning Detection below for important details
and warnings about AC detection.
WIREWARNING DETECTION The Zircon®WireWarning
Detection feature works continuously in StudScan, DeepScan and
Metal Scan Modes. When live, unshielded AC voltage is detected,
the WireWarning Detection Indicator shows. If scanning begins
over a live AC wire, the Indicator or middle bars (in AC Scan) will
flash on display continuously.
Use extreme caution under these circumstances, or whenever
live AC wiring is present.
WARNING
THE SCANNER MAY NOT DETECT LIVE
CURRENT IF WIRES ARE MORE THAN
50 mm BELOW THE SCANNED SURFACE, IN CONCRETE,
ENCASED IN CONDUIT, BEHIND A PLYWOOD SHEAR
WALL OR METALLIC WALL COVERING, OR IF MOISTURE IS
PRESENT IN THE ENVIRONMENT OR SCANNED SURFACE.
NOTE: If only two signal bars show
(Figure D), stud may be too deep.
Select DeepScan Mode, and
repeat scan.
Scanner automatically recalibrates when
in use. If arrows appear on the display,
the scanner was calibrated too close to
a stud then moved away. This is ACT
(Auto Correcting Technology)
(Figure E).
SCAN IN DEEPSCAN MODE
DeepScan Mode can detect studs up to 38 mm deep. To scan for
deeper studs, or for use with thicker walls:
1. Set mode to DeepScan.
2. Repeat steps 2 – 4 under FIND A STUD.
SCAN FOR METAL
Use Metal Scan Mode to determine if the stud found is wood,
or a metal stud or pipe.
1. Set mode to Metal Scan.
2. For maximum sensitivity, press and hold Power Button.
Hold the scanner away from the surface until a short beep
confirms calibration is complete,
then place against the surface to
be scanned.
3. While continuing to
hold Power Button, slide the
scanner slowly against the wall.
Mark the spot where the most
middle bars display. For a strong
read, the scanner will light up
and a steady beep will sound. (Figure F)
4. Continue sliding in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the metal object.
NOTE: If the unit indicates a large area of metal,
refine the scan to more accurately find the centre.
REFINE METAL SCAN
1. Release Power Button,
then position the scanner over
one of the previous marks.
This will reset to a lower
sensitivity and narrow the
scan area. (Figure G)
2. Press and hold Power
Button, then repeat 3
and 4 under SCAN FOR METAL.
3. Repeat as needed
for increased accuracy.
(Figure H)
NOTE: If any bars
display, metal is present.
Small targets or targets
deep below the surface may
only show one or two bars,
and the scanner may not be
able to locate the centre of
the metal.
SCAN FOR AC (alternating current)
Use AC Scan Mode to find live, unshielded wiring.
ALWAYS TURN OFF POWER WHEN WORKING NEAR
ELECTRICAL WIRES (EXCEPT WHEN SCANNING).
1. Set mode to AC Scan.
2. Hold scanner flat against wall, then press and hold
Power Button. A short beep confirms that calibration is complete.
DO NOT MOVE SCANNER DURING CALIBRATION.
3. While holding Power Button, slide the scanner slowly
against the wall. Mark the spot where the most middle
bars display. For a strong read, the scanner will light up and a
steady beep will sound. (Figure F)
DeepScan®Metal Scan
StudScanAC Scan
Figure F
DeepScan®Metal Scan
StudScanACScan
Figure G
DeepScan®Metal Scan
StudScanAC Scan
Figure H
DeepScan
®
Metal Scan
StudScan AC Scan
SpotLite®Pointer
Backlit LCD Display
Mode Selector
Switch
Battery
Door Tab
ACT™(Auto
Correcting
Technology)
Indicator
Signal
Strength
Indicator
Ergonomic Rubber Grip
Power Button
StudScan
Mode
Indicator
Stud EDGE / CENTER Indicators
Metal Scan
Mode Indicator
Target
Indicator Bars
Low Battery Indicator DeepScan®
Mode
Indicator
Figure B
Figure A
Figure C
Figure D
BEFORE YOU BEGIN
ZIRCON®STUD FINDERS WORK BY SENSING DENSITY CHANGES BEHIND THE WALL. OTHER OBJECTS CAN BE DETECTED
ESPECIALLY IF THEY ARE VERY CLOSE TO THE WALL. DO NOT ASSUME EVERYTHING DETECTED IS A STUD.
- Always use a new 9V alkaline battery with an extended expiration date at least 3 years beyond the current date. Match battery
direction to image inside of battery cavity.
- Do not rely exclusively on the scanner to locate such items behind a surface. Use other information to help locate items before
penetrating the surface, including construction plans, visible points of entry of pipes and wiring into walls such as in a basement, and
standard stud-spacing practices.
- Always start your scan in StudScan Mode which scans through surfaces up to 19 mm deep. Scanning in DeepScan®Mode may
detect an object further behind the wall that may or may not be a stud.
- Always scan for studs at several different heights on the wall and mark the location of every target indicated by the
stud finder. This is called “mapping the wall.” Pipes and other objects will likely not give consistent readings from floor to ceiling,
like a stud would.
- Readings should always be consistent and repeatable.
- Zircon stud finders are recommended for interior use only.
- Studs normally run from floor to ceiling, except above and below windows, and above doors.
- Other objects commonly contained in walls, floors, or ceilings are water pipes, gas lines, firestops, and electrical wiring.
- Sensing depth and accuracy can vary depending on scanning environment conditions such as mineral content, moisture,
texture and consistency of the wall materials.
- Always turn off power when working near electrical wires.
- Depending on the proximity of electrical wiring or pipes to the wall surface, the scanner may detect them in the same manner
as studs. Caution should always be used when nailing, cutting, or drilling in walls, floors, and ceilings that may contain these items.
- Studs and joists are normally spaced 40 or 60 cm apart on centre, are normally 38 mm wide, and may be separated by firestops.
Anything closer together, or of a different width, may not be a stud or joist.
MultiScanner®L550
Multifunction Wall Scanner
TROUBLESHOOTING & CONSTRUCTION TIPS
SITUATION LIKELY CAUSE SOLUTION
Scanner detects
objects other than
studs or finds more
studs than should
be there.
Electrical wiring
and metal or plastic
pipes may be near, or
touching, the back of
the wall surface.
• Scan the area in Metal Scan and / or AC Scan to determine if metal or live,
unshielded AC wiring is present.
• Check for other studs equally spaced to either side at 30, 40, or 60 cm,
or check for the same stud at spots directly above or below the first scan area.
• Standard studs measure approximately 38 mm between edges.
Anything larger or smaller is likely not a stud (unless near door or window).
Area of voltage
appears larger than
actual wire during
AC Scan.
Voltage detection can
spread on drywall by as
much as 30 cm on each
side of the wire.
Narrow the scan detection: 1. Turn scanner off. 2. Turn it on again at the
edge of where the wire was first detected. 3. Repeat scan.
Difficulty detecting
metal.
Scanner calibrated over
metal object.
The scanner may have been calibrated over a metal object, reducing sensitivity.
Try calibrating in another location.
Metal targets too deep
or small.
Scan in both horizontal and vertical directions. Metal sensitivity is increased
when metal object is parallel to sensor (located under the Zircon Logo).
Metal object reading
appears wider than
actual size.
Metal has a greater
density than wood.
To reduce sensitivity in Metal Scan Mode, recalibrate scanner over either of
first two marks (see steps under REFINE METAL SCAN).
Constant readings of
studs near windows
and doors.
Multiple studs are
in use.
Double and triple studs are sometimes used around doors and windows.
Headers are used above them. Detect outer edges so you know where
to begin.
Electrical wires
suspected but
none detected.
Wires are shielded
by a metal conduit,
braided wire or
metallic wall covering.
Use Metal Scan Mode to scan for metal, wire, or metal conduit.
Wires deeper than
50 mm from
the surface might
not be detected.
If there is an outlet switch, turn it to ON position while scanning, but turn
OFF when working near the wires. Use extra caution if the area has
plywood, thick wood backing behind drywall, or walls that are thicker
than normal.
Wires may not be live. Plug a lamp into the outlet and turn it on to test whether wires are live.
Low Battery Indicator
flashes and scanner
does not operate.
Low battery. Install a new 9V alkaline battery with an extended expiration date.
GB
Visit uk.zircon.com for the
most current instructions.
ZirconCorporation ZirconTV
ZirconTools
|
ZirconToolPro ZirconTools
AC Scan /
WireWarning®
Detection
Indicator
Figure E
WORKING WITH DIFFERENT MATERIALS
Wallpaper This scanner functions normally on walls covered
with wallpaper or fabric, unless the materials are metallic
foil, contain metallic fibres, or are still wet after application.
Wallpaper may need to dry for several weeks after application.
Freshly painted walls Paint may take a week or longer to dry
after application. If it is difficult to locate a stud in either stud
scanning modes on dry or freshly-dried paint, switch to Metal
Scan Mode to locate the nails or drywall screws holding drywall
to the studs.
Lath and plaster Due to irregularities in plaster thickness,
it is difficult for this scanner to locate studs in either stud-
scanning mode. Switch mode to Metal Scan Mode to locate the
nail heads holding wood lath to the studs. If the plaster has
metal mesh reinforcement, the scanner will be unable to detect
studs through that material.
Highly textured walls or acoustic ceilings When scanning
a ceiling or wall with an uneven surface, place thin cardboard
on the surface to be scanned and scan over the cardboard in
DeepScan Mode. If irregular scanning results are received, switch
to Metal Scan Mode to locate nails or drywall screws that line
up vertically where a stud or joist is positioned.
Wood flooring, subflooring, or gypsum drywall over
plywood sheathing Use DeepScan Mode and move
the scanner slowly. The Signal Strength Indicator may only
display a few bars when the scanner locates a stud through
a thick surface.
This scanner cannot scan for wood studs and joists through
carpet and padding. In problematic situations, try using Metal
Scan Mode to locate nails or screws that may line up vertically
or horizontally where a stud or joist is respectively positioned.
NOTE: Sensing depth and accuracy can vary depending
on scanning environment conditions such as mineral
content, moisture, texture, and consistency of the
wall materials.
Electrical wiring and pipes Depending on the proximity of
electrical wiring or pipes to the wall surface, the scanner may
detect them in the same manner as studs.
Caution should always be used when nailing, cutting, or drilling in
walls, floors, and ceilings that may contain these items.
Studs and joists are normally spaced 40 or 60 cm apart
on centre and are 38 mm wide. Anything closer together, or of
a different width, may not be a stud or joist.
LIMITED TWO-YEAR WARRANTY
Zircon Corporation (“Zircon”) warrants to the
original purchaser (or original user by gift) that this
product will be free from defects in materials and
workmanship for two years from date of purchase.
This warranty is limited to the electronic circuitry of
the product, and specifically excludes consumable
parts, including batteries, and software, even if
packaged with the product. Defects caused by abuse,
modification, handling contrary to these instructions,
other unreasonable use, or neglect are not covered
under this warranty. No liability is accepted for
normal wear and tear and minor defects which do not
detract from the function of the product. This Limited
Warranty is in addition to the statutory rights to
which purchaser is entitled and which are not limited
by this warranty.
THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IF ANY IMPLIED
WARRANTIES ARE APPLICABLE, THEY ARE LIMITED TO
THE TWO-YEAR PERIOD DEFINED ABOVE. IN NO EVENT
WILL ZIRCON BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING
FROM POSSESSION, USE, OR MALFUNCTION OF THIS
PRODUCT. NO OTHER REPRESENTATIONS OR CLAIMS OF
A SIMILAR NATURE WILL BIND OR OBLIGATE ZIRCON.
Any in-warranty defective product returned to the
place of purchase with original proof of purchase
will be replaced or purchase price refunded at
retailer’s option. This Limited Warranty applies only
to products purchased within the European Economic
Area and United Kingdom. For warranties applicable to
Zircon products purchased in other geographical areas,
see www.zircon.com/warranty.
For questions about this warranty or
Zircon products, contact:
Customer Service:
[phone] or [phone]
Monday–Friday, 8:00 a.m. to 5:00 p.m. PST
www.zircon.com • [e-mail]
©2019 Zircon Corporation • P/N 67794 • Rev B 07/19
ACT, DeepScan, MultiScanner, SpotLite, WireWarning
and Zircon are registered trademarks or trademarks
of Zircon Corporation.

4 scanning modes:
• StudScan locates centre and edges of stud (wood or metal)
up to 19 mm deep
• DeepScan locates centre and edges of stud up to
38 mm deep
• Metal Scan locates ferrous (magnetic) metal,such as steel,
up to 75 mm deep, and non-ferrous (non-magnetic) metal,
such as copper, up to 38 mm deep
• AC Scan locates live, unshielded AC wires up to 50 mm deep
WireWarning Detection automatically detects and alerts for
live, unshielded AC (alternating current) wires up to 50 mm deep
in StudScan, DeepScan and Metal Scan Modes.
To activate scanner, press and hold Power Button.
If button is not pressed and held, unit shuts off.
FIND A STUD
For best results, hold the scanner as
shown (Figure A) and move slowly
when scanning. Do not touch the
surface during calibration or scan.
1. Set mode to StudScan.
2. Hold scanner flat against wall,
then press and hold Power Button.
In 1 – 2 seconds, the unit will
calibrate. A short beep confirms
that calibration is complete.
DO NOT MOVE SCANNER
DURING CALIBRATION.
3. While holding down the Power
Button, slide the scanner slowly along
the wall. When scanner finds the edge
of a stud, EDGE displays. (Figure B)
4. Continue sliding. When scanner
finds the centre of a stud, CENTER
displays, light illuminates, 3 bars show
signal strength, and a buzzer sounds.
(Figure C)
4. Continue in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the live, unshielded AC wiring. If the unit indicates live
electricity over a large area, reduce the sensitivity of the scanner
to refine the scanning area and more accurately locate the live
AC wiring.
WARNING DO NOT ASSUME THERE ARE NO
LIVE ELECTRICAL WIRES IN THE WALL.
DO NOT TAKE ACTIONS THAT COULD BE DANGEROUS
IF THE WALL CONTAINS A LIVE ELECTRICAL WIRE.
ALWAYS TURN OFF THE ELECTRICAL, GAS, AND WATER
SUPPLIES BEFORE PENETRATING A SURFACE. FAILURE
TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
ELECTRIC SHOCK, FIRE, AND/OR SERIOUS INJURY OR
PROPERTY DAMAGE.
REFINE AC SCAN
1. Release Power Button, then position the scanner over one
of the previous marks. This will reset to a lower sensitivity and
narrow the scan area. (Figure G)
2. Press and hold Power Button, then repeat 3 and 4 under
SCAN FOR AC.
3. Repeat as needed for increased accuracy. (Figure H)
NOTE: AC Scan only detects live (hot) unshielded
AC wiring. Refer to the WARNING statement under
WireWarning Detection below for important details
and warnings about AC detection.
WIREWARNING DETECTION The Zircon®WireWarning
Detection feature works continuously in StudScan, DeepScan and
Metal Scan Modes. When live, unshielded AC voltage is detected,
the WireWarning Detection Indicator shows. If scanning begins
over a live AC wire, the Indicator or middle bars (in AC Scan) will
flash on display continuously.
Use extreme caution under these circumstances, or whenever
live AC wiring is present.
WARNING
THE SCANNER MAY NOT DETECT LIVE
CURRENT IF WIRES ARE MORE THAN
50 mm BELOW THE SCANNED SURFACE, IN CONCRETE,
ENCASED IN CONDUIT, BEHIND A PLYWOOD SHEAR
WALL OR METALLIC WALL COVERING, OR IF MOISTURE IS
PRESENT IN THE ENVIRONMENT OR SCANNED SURFACE.
NOTE: If only two signal bars show
(Figure D), stud may be too deep.
Select DeepScan Mode, and
repeat scan.
Scanner automatically recalibrates when
in use. If arrows appear on the display,
the scanner was calibrated too close to
a stud then moved away. This is ACT
(Auto Correcting Technology)
(Figure E).
SCAN IN DEEPSCAN MODE
DeepScan Mode can detect studs up to 38 mm deep. To scan for
deeper studs, or for use with thicker walls:
1. Set mode to DeepScan.
2. Repeat steps 2 – 4 under FIND A STUD.
SCAN FOR METAL
Use Metal Scan Mode to determine if the stud found is wood,
or a metal stud or pipe.
1. Set mode to Metal Scan.
2. For maximum sensitivity, press and hold Power Button.
Hold the scanner away from the surface until a short beep
confirms calibration is complete,
then place against the surface to
be scanned.
3. While continuing to
hold Power Button, slide the
scanner slowly against the wall.
Mark the spot where the most
middle bars display. For a strong
read, the scanner will light up
and a steady beep will sound. (Figure F)
4. Continue sliding in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the metal object.
NOTE: If the unit indicates a large area of metal,
refine the scan to more accurately find the centre.
REFINE METAL SCAN
1. Release Power Button,
then position the scanner over
one of the previous marks.
This will reset to a lower
sensitivity and narrow the
scan area. (Figure G)
2. Press and hold Power
Button, then repeat 3
and 4 under SCAN FOR METAL.
3. Repeat as needed
for increased accuracy.
(Figure H)
NOTE: If any bars
display, metal is present.
Small targets or targets
deep below the surface may
only show one or two bars,
and the scanner may not be
able to locate the centre of
the metal.
SCAN FOR AC (alternating current)
Use AC Scan Mode to find live, unshielded wiring.
ALWAYS TURN OFF POWER WHEN WORKING NEAR
ELECTRICAL WIRES (EXCEPT WHEN SCANNING).
1. Set mode to AC Scan.
2. Hold scanner flat against wall, then press and hold
Power Button. A short beep confirms that calibration is complete.
DO NOT MOVE SCANNER DURING CALIBRATION.
3. While holding Power Button, slide the scanner slowly
against the wall. Mark the spot where the most middle
bars display. For a strong read, the scanner will light up and a
steady beep will sound. (Figure F)
DeepScan®Metal Scan
StudScanAC Scan
Figure F
DeepScan®Metal Scan
StudScanACScan
Figure G
DeepScan®Metal Scan
StudScanAC Scan
Figure H
DeepScan
®
Metal Scan
StudScan AC Scan
SpotLite®Pointer
Backlit LCD Display
Mode Selector
Switch
Battery
Door Tab
ACT™(Auto
Correcting
Technology)
Indicator
Signal
Strength
Indicator
Ergonomic Rubber Grip
Power Button
StudScan
Mode
Indicator
Stud EDGE / CENTER Indicators
Metal Scan
Mode Indicator
Target
Indicator Bars
Low Battery Indicator DeepScan®
Mode
Indicator
Figure B
Figure A
Figure C
Figure D
BEFORE YOU BEGIN
ZIRCON®STUD FINDERS WORK BY SENSING DENSITY CHANGES BEHIND THE WALL. OTHER OBJECTS CAN BE DETECTED
ESPECIALLY IF THEY ARE VERY CLOSE TO THE WALL. DO NOT ASSUME EVERYTHING DETECTED IS A STUD.
- Always use a new 9V alkaline battery with an extended expiration date at least 3 years beyond the current date. Match battery
direction to image inside of battery cavity.
- Do not rely exclusively on the scanner to locate such items behind a surface. Use other information to help locate items before
penetrating the surface, including construction plans, visible points of entry of pipes and wiring into walls such as in a basement, and
standard stud-spacing practices.
- Always start your scan in StudScan Mode which scans through surfaces up to 19 mm deep. Scanning in DeepScan®Mode may
detect an object further behind the wall that may or may not be a stud.
- Always scan for studs at several different heights on the wall and mark the location of every target indicated by the
stud finder. This is called “mapping the wall.” Pipes and other objects will likely not give consistent readings from floor to ceiling,
like a stud would.
- Readings should always be consistent and repeatable.
- Zircon stud finders are recommended for interior use only.
- Studs normally run from floor to ceiling, except above and below windows, and above doors.
- Other objects commonly contained in walls, floors, or ceilings are water pipes, gas lines, firestops, and electrical wiring.
- Sensing depth and accuracy can vary depending on scanning environment conditions such as mineral content, moisture,
texture and consistency of the wall materials.
- Always turn off power when working near electrical wires.
- Depending on the proximity of electrical wiring or pipes to the wall surface, the scanner may detect them in the same manner
as studs. Caution should always be used when nailing, cutting, or drilling in walls, floors, and ceilings that may contain these items.
- Studs and joists are normally spaced 40 or 60 cm apart on centre, are normally 38 mm wide, and may be separated by firestops.
Anything closer together, or of a different width, may not be a stud or joist.
MultiScanner®L550
Multifunction Wall Scanner
TROUBLESHOOTING & CONSTRUCTION TIPS
SITUATION LIKELY CAUSE SOLUTION
Scanner detects
objects other than
studs or finds more
studs than should
be there.
Electrical wiring
and metal or plastic
pipes may be near, or
touching, the back of
the wall surface.
• Scan the area in Metal Scan and / or AC Scan to determine if metal or live,
unshielded AC wiring is present.
• Check for other studs equally spaced to either side at 30, 40, or 60 cm,
or check for the same stud at spots directly above or below the first scan area.
• Standard studs measure approximately 38 mm between edges.
Anything larger or smaller is likely not a stud (unless near door or window).
Area of voltage
appears larger than
actual wire during
AC Scan.
Voltage detection can
spread on drywall by as
much as 30 cm on each
side of the wire.
Narrow the scan detection: 1. Turn scanner off. 2. Turn it on again at the
edge of where the wire was first detected. 3. Repeat scan.
Difficulty detecting
metal.
Scanner calibrated over
metal object.
The scanner may have been calibrated over a metal object, reducing sensitivity.
Try calibrating in another location.
Metal targets too deep
or small.
Scan in both horizontal and vertical directions. Metal sensitivity is increased
when metal object is parallel to sensor (located under the Zircon Logo).
Metal object reading
appears wider than
actual size.
Metal has a greater
density than wood.
To reduce sensitivity in Metal Scan Mode, recalibrate scanner over either of
first two marks (see steps under REFINE METAL SCAN).
Constant readings of
studs near windows
and doors.
Multiple studs are
in use.
Double and triple studs are sometimes used around doors and windows.
Headers are used above them. Detect outer edges so you know where
to begin.
Electrical wires
suspected but
none detected.
Wires are shielded
by a metal conduit,
braided wire or
metallic wall covering.
Use Metal Scan Mode to scan for metal, wire, or metal conduit.
Wires deeper than
50 mm from
the surface might
not be detected.
If there is an outlet switch, turn it to ON position while scanning, but turn
OFF when working near the wires. Use extra caution if the area has
plywood, thick wood backing behind drywall, or walls that are thicker
than normal.
Wires may not be live. Plug a lamp into the outlet and turn it on to test whether wires are live.
Low Battery Indicator
flashes and scanner
does not operate.
Low battery. Install a new 9V alkaline battery with an extended expiration date.
GB
Visit uk.zircon.com for the
most current instructions.
ZirconCorporation ZirconTV
ZirconTools
|
ZirconToolPro ZirconTools
AC Scan /
WireWarning®
Detection
Indicator
Figure E
WORKING WITH DIFFERENT MATERIALS
Wallpaper This scanner functions normally on walls covered
with wallpaper or fabric, unless the materials are metallic
foil, contain metallic fibres, or are still wet after application.
Wallpaper may need to dry for several weeks after application.
Freshly painted walls Paint may take a week or longer to dry
after application. If it is difficult to locate a stud in either stud
scanning modes on dry or freshly-dried paint, switch to Metal
Scan Mode to locate the nails or drywall screws holding drywall
to the studs.
Lath and plaster Due to irregularities in plaster thickness,
it is difficult for this scanner to locate studs in either stud-
scanning mode. Switch mode to Metal Scan Mode to locate the
nail heads holding wood lath to the studs. If the plaster has
metal mesh reinforcement, the scanner will be unable to detect
studs through that material.
Highly textured walls or acoustic ceilings When scanning
a ceiling or wall with an uneven surface, place thin cardboard
on the surface to be scanned and scan over the cardboard in
DeepScan Mode. If irregular scanning results are received, switch
to Metal Scan Mode to locate nails or drywall screws that line
up vertically where a stud or joist is positioned.
Wood flooring, subflooring, or gypsum drywall over
plywood sheathing Use DeepScan Mode and move
the scanner slowly. The Signal Strength Indicator may only
display a few bars when the scanner locates a stud through
a thick surface.
This scanner cannot scan for wood studs and joists through
carpet and padding. In problematic situations, try using Metal
Scan Mode to locate nails or screws that may line up vertically
or horizontally where a stud or joist is respectively positioned.
NOTE: Sensing depth and accuracy can vary depending
on scanning environment conditions such as mineral
content, moisture, texture, and consistency of the
wall materials.
Electrical wiring and pipes Depending on the proximity of
electrical wiring or pipes to the wall surface, the scanner may
detect them in the same manner as studs.
Caution should always be used when nailing, cutting, or drilling in
walls, floors, and ceilings that may contain these items.
Studs and joists are normally spaced 40 or 60 cm apart
on centre and are 38 mm wide. Anything closer together, or of
a different width, may not be a stud or joist.
LIMITED TWO-YEAR WARRANTY
Zircon Corporation (“Zircon”) warrants to the
original purchaser (or original user by gift) that this
product will be free from defects in materials and
workmanship for two years from date of purchase.
This warranty is limited to the electronic circuitry of
the product, and specifically excludes consumable
parts, including batteries, and software, even if
packaged with the product. Defects caused by abuse,
modification, handling contrary to these instructions,
other unreasonable use, or neglect are not covered
under this warranty. No liability is accepted for
normal wear and tear and minor defects which do not
detract from the function of the product. This Limited
Warranty is in addition to the statutory rights to
which purchaser is entitled and which are not limited
by this warranty.
THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IF ANY IMPLIED
WARRANTIES ARE APPLICABLE, THEY ARE LIMITED TO
THE TWO-YEAR PERIOD DEFINED ABOVE. IN NO EVENT
WILL ZIRCON BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING
FROM POSSESSION, USE, OR MALFUNCTION OF THIS
PRODUCT. NO OTHER REPRESENTATIONS OR CLAIMS OF
A SIMILAR NATURE WILL BIND OR OBLIGATE ZIRCON.
Any in-warranty defective product returned to the
place of purchase with original proof of purchase
will be replaced or purchase price refunded at
retailer’s option. This Limited Warranty applies only
to products purchased within the European Economic
Area and United Kingdom. For warranties applicable to
Zircon products purchased in other geographical areas,
see www.zircon.com/warranty.
For questions about this warranty or
Zircon products, contact:
Customer Service:
[phone] or [phone]
Monday–Friday, 8:00 a.m. to 5:00 p.m. PST
www.zircon.com • [e-mail]
©2019 Zircon Corporation • P/N 67794 • Rev B 07/19
ACT, DeepScan, MultiScanner, SpotLite, WireWarning
and Zircon are registered trademarks or trademarks
of Zircon Corporation.

4 scanning modes:
• StudScan locates centre and edges of stud (wood or metal)
up to 19 mm deep
• DeepScan locates centre and edges of stud up to
38 mm deep
• Metal Scan locates ferrous (magnetic) metal,such as steel,
up to 75 mm deep, and non-ferrous (non-magnetic) metal,
such as copper, up to 38 mm deep
• AC Scan locates live, unshielded AC wires up to 50 mm deep
WireWarning Detection automatically detects and alerts for
live, unshielded AC (alternating current) wires up to 50 mm deep
in StudScan, DeepScan and Metal Scan Modes.
To activate scanner, press and hold Power Button.
If button is not pressed and held, unit shuts off.
FIND A STUD
For best results, hold the scanner as
shown (Figure A) and move slowly
when scanning. Do not touch the
surface during calibration or scan.
1. Set mode to StudScan.
2. Hold scanner flat against wall,
then press and hold Power Button.
In 1 – 2 seconds, the unit will
calibrate. A short beep confirms
that calibration is complete.
DO NOT MOVE SCANNER
DURING CALIBRATION.
3. While holding down the Power
Button, slide the scanner slowly along
the wall. When scanner finds the edge
of a stud, EDGE displays. (Figure B)
4. Continue sliding. When scanner
finds the centre of a stud, CENTER
displays, light illuminates, 3 bars show
signal strength, and a buzzer sounds.
(Figure C)
4. Continue in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the live, unshielded AC wiring. If the unit indicates live
electricity over a large area, reduce the sensitivity of the scanner
to refine the scanning area and more accurately locate the live
AC wiring.
WARNING DO NOT ASSUME THERE ARE NO
LIVE ELECTRICAL WIRES IN THE WALL.
DO NOT TAKE ACTIONS THAT COULD BE DANGEROUS
IF THE WALL CONTAINS A LIVE ELECTRICAL WIRE.
ALWAYS TURN OFF THE ELECTRICAL, GAS, AND WATER
SUPPLIES BEFORE PENETRATING A SURFACE. FAILURE
TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
ELECTRIC SHOCK, FIRE, AND/OR SERIOUS INJURY OR
PROPERTY DAMAGE.
REFINE AC SCAN
1. Release Power Button, then position the scanner over one
of the previous marks. This will reset to a lower sensitivity and
narrow the scan area. (Figure G)
2. Press and hold Power Button, then repeat 3 and 4 under
SCAN FOR AC.
3. Repeat as needed for increased accuracy. (Figure H)
NOTE: AC Scan only detects live (hot) unshielded
AC wiring. Refer to the WARNING statement under
WireWarning Detection below for important details
and warnings about AC detection.
WIREWARNING DETECTION The Zircon®WireWarning
Detection feature works continuously in StudScan, DeepScan and
Metal Scan Modes. When live, unshielded AC voltage is detected,
the WireWarning Detection Indicator shows. If scanning begins
over a live AC wire, the Indicator or middle bars (in AC Scan) will
flash on display continuously.
Use extreme caution under these circumstances, or whenever
live AC wiring is present.
WARNING
THE SCANNER MAY NOT DETECT LIVE
CURRENT IF WIRES ARE MORE THAN
50 mm BELOW THE SCANNED SURFACE, IN CONCRETE,
ENCASED IN CONDUIT, BEHIND A PLYWOOD SHEAR
WALL OR METALLIC WALL COVERING, OR IF MOISTURE IS
PRESENT IN THE ENVIRONMENT OR SCANNED SURFACE.
NOTE: If only two signal bars show
(Figure D), stud may be too deep.
Select DeepScan Mode, and
repeat scan.
Scanner automatically recalibrates when
in use. If arrows appear on the display,
the scanner was calibrated too close to
a stud then moved away. This is ACT
(Auto Correcting Technology)
(Figure E).
SCAN IN DEEPSCAN MODE
DeepScan Mode can detect studs up to 38 mm deep. To scan for
deeper studs, or for use with thicker walls:
1. Set mode to DeepScan.
2. Repeat steps 2 – 4 under FIND A STUD.
SCAN FOR METAL
Use Metal Scan Mode to determine if the stud found is wood,
or a metal stud or pipe.
1. Set mode to Metal Scan.
2. For maximum sensitivity, press and hold Power Button.
Hold the scanner away from the surface until a short beep
confirms calibration is complete,
then place against the surface to
be scanned.
3. While continuing to
hold Power Button, slide the
scanner slowly against the wall.
Mark the spot where the most
middle bars display. For a strong
read, the scanner will light up
and a steady beep will sound. (Figure F)
4. Continue sliding in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the metal object.
NOTE: If the unit indicates a large area of metal,
refine the scan to more accurately find the centre.
REFINE METAL SCAN
1. Release Power Button,
then position the scanner over
one of the previous marks.
This will reset to a lower
sensitivity and narrow the
scan area. (Figure G)
2. Press and hold Power
Button, then repeat 3
and 4 under SCAN FOR METAL.
3. Repeat as needed
for increased accuracy.
(Figure H)
NOTE: If any bars
display, metal is present.
Small targets or targets
deep below the surface may
only show one or two bars,
and the scanner may not be
able to locate the centre of
the metal.
SCAN FOR AC (alternating current)
Use AC Scan Mode to find live, unshielded wiring.
ALWAYS TURN OFF POWER WHEN WORKING NEAR
ELECTRICAL WIRES (EXCEPT WHEN SCANNING).
1. Set mode to AC Scan.
2. Hold scanner flat against wall, then press and hold
Power Button. A short beep confirms that calibration is complete.
DO NOT MOVE SCANNER DURING CALIBRATION.
3. While holding Power Button, slide the scanner slowly
against the wall. Mark the spot where the most middle
bars display. For a strong read, the scanner will light up and a
steady beep will sound. (Figure F)
DeepScan®Metal Scan
StudScanAC Scan
Figure F
DeepScan®Metal Scan
StudScanACScan
Figure G
DeepScan®Metal Scan
StudScanAC Scan
Figure H
DeepScan
®
Metal Scan
StudScan AC Scan
SpotLite®Pointer
Backlit LCD Display
Mode Selector
Switch
Battery
Door Tab
ACT™(Auto
Correcting
Technology)
Indicator
Signal
Strength
Indicator
Ergonomic Rubber Grip
Power Button
StudScan
Mode
Indicator
Stud EDGE / CENTER Indicators
Metal Scan
Mode Indicator
Target
Indicator Bars
Low Battery Indicator DeepScan®
Mode
Indicator
Figure B
Figure A
Figure C
Figure D
BEFORE YOU BEGIN
ZIRCON®STUD FINDERS WORK BY SENSING DENSITY CHANGES BEHIND THE WALL. OTHER OBJECTS CAN BE DETECTED
ESPECIALLY IF THEY ARE VERY CLOSE TO THE WALL. DO NOT ASSUME EVERYTHING DETECTED IS A STUD.
- Always use a new 9V alkaline battery with an extended expiration date at least 3 years beyond the current date. Match battery
direction to image inside of battery cavity.
- Do not rely exclusively on the scanner to locate such items behind a surface. Use other information to help locate items before
penetrating the surface, including construction plans, visible points of entry of pipes and wiring into walls such as in a basement, and
standard stud-spacing practices.
- Always start your scan in StudScan Mode which scans through surfaces up to 19 mm deep. Scanning in DeepScan®Mode may
detect an object further behind the wall that may or may not be a stud.
- Always scan for studs at several different heights on the wall and mark the location of every target indicated by the
stud finder. This is called “mapping the wall.” Pipes and other objects will likely not give consistent readings from floor to ceiling,
like a stud would.
- Readings should always be consistent and repeatable.
- Zircon stud finders are recommended for interior use only.
- Studs normally run from floor to ceiling, except above and below windows, and above doors.
- Other objects commonly contained in walls, floors, or ceilings are water pipes, gas lines, firestops, and electrical wiring.
- Sensing depth and accuracy can vary depending on scanning environment conditions such as mineral content, moisture,
texture and consistency of the wall materials.
- Always turn off power when working near electrical wires.
- Depending on the proximity of electrical wiring or pipes to the wall surface, the scanner may detect them in the same manner
as studs. Caution should always be used when nailing, cutting, or drilling in walls, floors, and ceilings that may contain these items.
- Studs and joists are normally spaced 40 or 60 cm apart on centre, are normally 38 mm wide, and may be separated by firestops.
Anything closer together, or of a different width, may not be a stud or joist.
MultiScanner®L550
Multifunction Wall Scanner
TROUBLESHOOTING & CONSTRUCTION TIPS
SITUATION LIKELY CAUSE SOLUTION
Scanner detects
objects other than
studs or finds more
studs than should
be there.
Electrical wiring
and metal or plastic
pipes may be near, or
touching, the back of
the wall surface.
• Scan the area in Metal Scan and / or AC Scan to determine if metal or live,
unshielded AC wiring is present.
• Check for other studs equally spaced to either side at 30, 40, or 60 cm,
or check for the same stud at spots directly above or below the first scan area.
• Standard studs measure approximately 38 mm between edges.
Anything larger or smaller is likely not a stud (unless near door or window).
Area of voltage
appears larger than
actual wire during
AC Scan.
Voltage detection can
spread on drywall by as
much as 30 cm on each
side of the wire.
Narrow the scan detection: 1. Turn scanner off. 2. Turn it on again at the
edge of where the wire was first detected. 3. Repeat scan.
Difficulty detecting
metal.
Scanner calibrated over
metal object.
The scanner may have been calibrated over a metal object, reducing sensitivity.
Try calibrating in another location.
Metal targets too deep
or small.
Scan in both horizontal and vertical directions. Metal sensitivity is increased
when metal object is parallel to sensor (located under the Zircon Logo).
Metal object reading
appears wider than
actual size.
Metal has a greater
density than wood.
To reduce sensitivity in Metal Scan Mode, recalibrate scanner over either of
first two marks (see steps under REFINE METAL SCAN).
Constant readings of
studs near windows
and doors.
Multiple studs are
in use.
Double and triple studs are sometimes used around doors and windows.
Headers are used above them. Detect outer edges so you know where
to begin.
Electrical wires
suspected but
none detected.
Wires are shielded
by a metal conduit,
braided wire or
metallic wall covering.
Use Metal Scan Mode to scan for metal, wire, or metal conduit.
Wires deeper than
50 mm from
the surface might
not be detected.
If there is an outlet switch, turn it to ON position while scanning, but turn
OFF when working near the wires. Use extra caution if the area has
plywood, thick wood backing behind drywall, or walls that are thicker
than normal.
Wires may not be live. Plug a lamp into the outlet and turn it on to test whether wires are live.
Low Battery Indicator
flashes and scanner
does not operate.
Low battery. Install a new 9V alkaline battery with an extended expiration date.
GB
Visit uk.zircon.com for the
most current instructions.
ZirconCorporation ZirconTV
ZirconTools
|
ZirconToolPro ZirconTools
AC Scan /
WireWarning®
Detection
Indicator
Figure E
WORKING WITH DIFFERENT MATERIALS
Wallpaper This scanner functions normally on walls covered
with wallpaper or fabric, unless the materials are metallic
foil, contain metallic fibres, or are still wet after application.
Wallpaper may need to dry for several weeks after application.
Freshly painted walls Paint may take a week or longer to dry
after application. If it is difficult to locate a stud in either stud
scanning modes on dry or freshly-dried paint, switch to Metal
Scan Mode to locate the nails or drywall screws holding drywall
to the studs.
Lath and plaster Due to irregularities in plaster thickness,
it is difficult for this scanner to locate studs in either stud-
scanning mode. Switch mode to Metal Scan Mode to locate the
nail heads holding wood lath to the studs. If the plaster has
metal mesh reinforcement, the scanner will be unable to detect
studs through that material.
Highly textured walls or acoustic ceilings When scanning
a ceiling or wall with an uneven surface, place thin cardboard
on the surface to be scanned and scan over the cardboard in
DeepScan Mode. If irregular scanning results are received, switch
to Metal Scan Mode to locate nails or drywall screws that line
up vertically where a stud or joist is positioned.
Wood flooring, subflooring, or gypsum drywall over
plywood sheathing Use DeepScan Mode and move
the scanner slowly. The Signal Strength Indicator may only
display a few bars when the scanner locates a stud through
a thick surface.
This scanner cannot scan for wood studs and joists through
carpet and padding. In problematic situations, try using Metal
Scan Mode to locate nails or screws that may line up vertically
or horizontally where a stud or joist is respectively positioned.
NOTE: Sensing depth and accuracy can vary depending
on scanning environment conditions such as mineral
content, moisture, texture, and consistency of the
wall materials.
Electrical wiring and pipes Depending on the proximity of
electrical wiring or pipes to the wall surface, the scanner may
detect them in the same manner as studs.
Caution should always be used when nailing, cutting, or drilling in
walls, floors, and ceilings that may contain these items.
Studs and joists are normally spaced 40 or 60 cm apart
on centre and are 38 mm wide. Anything closer together, or of
a different width, may not be a stud or joist.
LIMITED TWO-YEAR WARRANTY
Zircon Corporation (“Zircon”) warrants to the
original purchaser (or original user by gift) that this
product will be free from defects in materials and
workmanship for two years from date of purchase.
This warranty is limited to the electronic circuitry of
the product, and specifically excludes consumable
parts, including batteries, and software, even if
packaged with the product. Defects caused by abuse,
modification, handling contrary to these instructions,
other unreasonable use, or neglect are not covered
under this warranty. No liability is accepted for
normal wear and tear and minor defects which do not
detract from the function of the product. This Limited
Warranty is in addition to the statutory rights to
which purchaser is entitled and which are not limited
by this warranty.
THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IF ANY IMPLIED
WARRANTIES ARE APPLICABLE, THEY ARE LIMITED TO
THE TWO-YEAR PERIOD DEFINED ABOVE. IN NO EVENT
WILL ZIRCON BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING
FROM POSSESSION, USE, OR MALFUNCTION OF THIS
PRODUCT. NO OTHER REPRESENTATIONS OR CLAIMS OF
A SIMILAR NATURE WILL BIND OR OBLIGATE ZIRCON.
Any in-warranty defective product returned to the
place of purchase with original proof of purchase
will be replaced or purchase price refunded at
retailer’s option. This Limited Warranty applies only
to products purchased within the European Economic
Area and United Kingdom. For warranties applicable to
Zircon products purchased in other geographical areas,
see www.zircon.com/warranty.
For questions about this warranty or
Zircon products, contact:
Customer Service:
[phone] or [phone]
Monday–Friday, 8:00 a.m. to 5:00 p.m. PST
www.zircon.com • [e-mail]
©2019 Zircon Corporation • P/N 67794 • Rev B 07/19
ACT, DeepScan, MultiScanner, SpotLite, WireWarning
and Zircon are registered trademarks or trademarks
of Zircon Corporation.

4 scanning modes:
• StudScan locates centre and edges of stud (wood or metal)
up to 19 mm deep
• DeepScan locates centre and edges of stud up to
38 mm deep
• Metal Scan locates ferrous (magnetic) metal,such as steel,
up to 75 mm deep, and non-ferrous (non-magnetic) metal,
such as copper, up to 38 mm deep
• AC Scan locates live, unshielded AC wires up to 50 mm deep
WireWarning Detection automatically detects and alerts for
live, unshielded AC (alternating current) wires up to 50 mm deep
in StudScan, DeepScan and Metal Scan Modes.
To activate scanner, press and hold Power Button.
If button is not pressed and held, unit shuts off.
FIND A STUD
For best results, hold the scanner as
shown (Figure A) and move slowly
when scanning. Do not touch the
surface during calibration or scan.
1. Set mode to StudScan.
2. Hold scanner flat against wall,
then press and hold Power Button.
In 1 – 2 seconds, the unit will
calibrate. A short beep confirms
that calibration is complete.
DO NOT MOVE SCANNER
DURING CALIBRATION.
3. While holding down the Power
Button, slide the scanner slowly along
the wall. When scanner finds the edge
of a stud, EDGE displays. (Figure B)
4. Continue sliding. When scanner
finds the centre of a stud, CENTER
displays, light illuminates, 3 bars show
signal strength, and a buzzer sounds.
(Figure C)
4. Continue in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the live, unshielded AC wiring. If the unit indicates live
electricity over a large area, reduce the sensitivity of the scanner
to refine the scanning area and more accurately locate the live
AC wiring.
WARNING DO NOT ASSUME THERE ARE NO
LIVE ELECTRICAL WIRES IN THE WALL.
DO NOT TAKE ACTIONS THAT COULD BE DANGEROUS
IF THE WALL CONTAINS A LIVE ELECTRICAL WIRE.
ALWAYS TURN OFF THE ELECTRICAL, GAS, AND WATER
SUPPLIES BEFORE PENETRATING A SURFACE. FAILURE
TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
ELECTRIC SHOCK, FIRE, AND/OR SERIOUS INJURY OR
PROPERTY DAMAGE.
REFINE AC SCAN
1. Release Power Button, then position the scanner over one
of the previous marks. This will reset to a lower sensitivity and
narrow the scan area. (Figure G)
2. Press and hold Power Button, then repeat 3 and 4 under
SCAN FOR AC.
3. Repeat as needed for increased accuracy. (Figure H)
NOTE: AC Scan only detects live (hot) unshielded
AC wiring. Refer to the WARNING statement under
WireWarning Detection below for important details
and warnings about AC detection.
WIREWARNING DETECTION The Zircon®WireWarning
Detection feature works continuously in StudScan, DeepScan and
Metal Scan Modes. When live, unshielded AC voltage is detected,
the WireWarning Detection Indicator shows. If scanning begins
over a live AC wire, the Indicator or middle bars (in AC Scan) will
flash on display continuously.
Use extreme caution under these circumstances, or whenever
live AC wiring is present.
WARNING
THE SCANNER MAY NOT DETECT LIVE
CURRENT IF WIRES ARE MORE THAN
50 mm BELOW THE SCANNED SURFACE, IN CONCRETE,
ENCASED IN CONDUIT, BEHIND A PLYWOOD SHEAR
WALL OR METALLIC WALL COVERING, OR IF MOISTURE IS
PRESENT IN THE ENVIRONMENT OR SCANNED SURFACE.
NOTE: If only two signal bars show
(Figure D), stud may be too deep.
Select DeepScan Mode, and
repeat scan.
Scanner automatically recalibrates when
in use. If arrows appear on the display,
the scanner was calibrated too close to
a stud then moved away. This is ACT
(Auto Correcting Technology)
(Figure E).
SCAN IN DEEPSCAN MODE
DeepScan Mode can detect studs up to 38 mm deep. To scan for
deeper studs, or for use with thicker walls:
1. Set mode to DeepScan.
2. Repeat steps 2 – 4 under FIND A STUD.
SCAN FOR METAL
Use Metal Scan Mode to determine if the stud found is wood,
or a metal stud or pipe.
1. Set mode to Metal Scan.
2. For maximum sensitivity, press and hold Power Button.
Hold the scanner away from the surface until a short beep
confirms calibration is complete,
then place against the surface to
be scanned.
3. While continuing to
hold Power Button, slide the
scanner slowly against the wall.
Mark the spot where the most
middle bars display. For a strong
read, the scanner will light up
and a steady beep will sound. (Figure F)
4. Continue sliding in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the metal object.
NOTE: If the unit indicates a large area of metal,
refine the scan to more accurately find the centre.
REFINE METAL SCAN
1. Release Power Button,
then position the scanner over
one of the previous marks.
This will reset to a lower
sensitivity and narrow the
scan area. (Figure G)
2. Press and hold Power
Button, then repeat 3
and 4 under SCAN FOR METAL.
3. Repeat as needed
for increased accuracy.
(Figure H)
NOTE: If any bars
display, metal is present.
Small targets or targets
deep below the surface may
only show one or two bars,
and the scanner may not be
able to locate the centre of
the metal.
SCAN FOR AC (alternating current)
Use AC Scan Mode to find live, unshielded wiring.
ALWAYS TURN OFF POWER WHEN WORKING NEAR
ELECTRICAL WIRES (EXCEPT WHEN SCANNING).
1. Set mode to AC Scan.
2. Hold scanner flat against wall, then press and hold
Power Button. A short beep confirms that calibration is complete.
DO NOT MOVE SCANNER DURING CALIBRATION.
3. While holding Power Button, slide the scanner slowly
against the wall. Mark the spot where the most middle
bars display. For a strong read, the scanner will light up and a
steady beep will sound. (Figure F)
DeepScan®MetalScan
StudScanACScan
Figure F
DeepScan®MetalScan
StudScanACScan
Figure G
DeepScan®MetalScan
StudScanACScan
Figure H
DeepScan
®
Metal Scan
StudScan AC Scan
SpotLite®Pointer
Backlit LCD Display
Mode Selector
Switch
Battery
Door Tab
ACT™(Auto
Correcting
Technology)
Indicator
Signal
Strength
Indicator
Ergonomic Rubber Grip
Power Button
StudScan
Mode
Indicator
Stud EDGE / CENTER Indicators
Metal Scan
Mode Indicator
Target
Indicator Bars
Low Battery Indicator DeepScan®
Mode
Indicator
Figure B
Figure A
Figure C
Figure D
BEFORE YOU BEGIN
ZIRCON®STUD FINDERS WORK BY SENSING DENSITY CHANGES BEHIND THE WALL. OTHER OBJECTS CAN BE DETECTED
ESPECIALLY IF THEY ARE VERY CLOSE TO THE WALL. DO NOT ASSUME EVERYTHING DETECTED IS A STUD.
- Always use a new 9V alkaline battery with an extended expiration date at least 3 years beyond the current date. Match battery
direction to image inside of battery cavity.
- Do not rely exclusively on the scanner to locate such items behind a surface. Use other information to help locate items before
penetrating the surface, including construction plans, visible points of entry of pipes and wiring into walls such as in a basement, and
standard stud-spacing practices.
- Always start your scan in StudScan Mode which scans through surfaces up to 19 mm deep. Scanning in DeepScan®Mode may
detect an object further behind the wall that may or may not be a stud.
- Always scan for studs at several different heights on the wall and mark the location of every target indicated by the
stud finder. This is called “mapping the wall.” Pipes and other objects will likely not give consistent readings from floor to ceiling,
like a stud would.
- Readings should always be consistent and repeatable.
- Zircon stud finders are recommended for interior use only.
- Studs normally run from floor to ceiling, except above and below windows, and above doors.
- Other objects commonly contained in walls, floors, or ceilings are water pipes, gas lines, firestops, and electrical wiring.
- Sensing depth and accuracy can vary depending on scanning environment conditions such as mineral content, moisture,
texture and consistency of the wall materials.
- Always turn off power when working near electrical wires.
- Depending on the proximity of electrical wiring or pipes to the wall surface, the scanner may detect them in the same manner
as studs. Caution should always be used when nailing, cutting, or drilling in walls, floors, and ceilings that may contain these items.
- Studs and joists are normally spaced 40 or 60 cm apart on centre, are normally 38 mm wide, and may be separated by firestops.
Anything closer together, or of a different width, may not be a stud or joist.
MultiScanner®L550
Multifunction Wall Scanner
TROUBLESHOOTING & CONSTRUCTION TIPS
SITUATION LIKELY CAUSE SOLUTION
Scanner detects
objects other than
studs or finds more
studs than should
be there.
Electrical wiring
and metal or plastic
pipes may be near, or
touching, the back of
the wall surface.
• Scan the area in Metal Scan and / or AC Scan to determine if metal or live,
unshielded AC wiring is present.
• Check for other studs equally spaced to either side at 30, 40, or 60 cm,
or check for the same stud at spots directly above or below the first scan area.
• Standard studs measure approximately 38 mm between edges.
Anything larger or smaller is likely not a stud (unless near door or window).
Area of voltage
appears larger than
actual wire during
AC Scan.
Voltage detection can
spread on drywall by as
much as 30 cm on each
side of the wire.
Narrow the scan detection: 1. Turn scanner off. 2. Turn it on again at the
edge of where the wire was first detected. 3. Repeat scan.
Difficulty detecting
metal.
Scanner calibrated over
metal object.
The scanner may have been calibrated over a metal object, reducing sensitivity.
Try calibrating in another location.
Metal targets too deep
or small.
Scan in both horizontal and vertical directions. Metal sensitivity is increased
when metal object is parallel to sensor (located under the Zircon Logo).
Metal object reading
appears wider than
actual size.
Metal has a greater
density than wood.
To reduce sensitivity in Metal Scan Mode, recalibrate scanner over either of
first two marks (see steps under REFINE METAL SCAN).
Constant readings of
studs near windows
and doors.
Multiple studs are
in use.
Double and triple studs are sometimes used around doors and windows.
Headers are used above them. Detect outer edges so you know where
to begin.
Electrical wires
suspected but
none detected.
Wires are shielded
by a metal conduit,
braided wire or
metallic wall covering.
Use Metal Scan Mode to scan for metal, wire, or metal conduit.
Wires deeper than
50 mm from
the surface might
not be detected.
If there is an outlet switch, turn it to ON position while scanning, but turn
OFF when working near the wires. Use extra caution if the area has
plywood, thick wood backing behind drywall, or walls that are thicker
than normal.
Wires may not be live. Plug a lamp into the outlet and turn it on to test whether wires are live.
Low Battery Indicator
flashes and scanner
does not operate.
Low battery. Install a new 9V alkaline battery with an extended expiration date.
GB
Visit uk.zircon.com for the
most current instructions.
ZirconCorporation ZirconTV
ZirconTools
|
ZirconToolPro ZirconTools
AC Scan /
WireWarning®
Detection
Indicator
Figure E
WORKING WITH DIFFERENT MATERIALS
Wallpaper This scanner functions normally on walls covered
with wallpaper or fabric, unless the materials are metallic
foil, contain metallic fibres, or are still wet after application.
Wallpaper may need to dry for several weeks after application.
Freshly painted walls Paint may take a week or longer to dry
after application. If it is difficult to locate a stud in either stud
scanning modes on dry or freshly-dried paint, switch to Metal
Scan Mode to locate the nails or drywall screws holding drywall
to the studs.
Lath and plaster Due to irregularities in plaster thickness,
it is difficult for this scanner to locate studs in either stud-
scanning mode. Switch mode to Metal Scan Mode to locate the
nail heads holding wood lath to the studs. If the plaster has
metal mesh reinforcement, the scanner will be unable to detect
studs through that material.
Highly textured walls or acoustic ceilings When scanning
a ceiling or wall with an uneven surface, place thin cardboard
on the surface to be scanned and scan over the cardboard in
DeepScan Mode. If irregular scanning results are received, switch
to Metal Scan Mode to locate nails or drywall screws that line
up vertically where a stud or joist is positioned.
Wood flooring, subflooring, or gypsum drywall over
plywood sheathing Use DeepScan Mode and move
the scanner slowly. The Signal Strength Indicator may only
display a few bars when the scanner locates a stud through
a thick surface.
This scanner cannot scan for wood studs and joists through
carpet and padding. In problematic situations, try using Metal
Scan Mode to locate nails or screws that may line up vertically
or horizontally where a stud or joist is respectively positioned.
NOTE: Sensing depth and accuracy can vary depending
on scanning environment conditions such as mineral
content, moisture, texture, and consistency of the
wall materials.
Electrical wiring and pipes Depending on the proximity of
electrical wiring or pipes to the wall surface, the scanner may
detect them in the same manner as studs.
Caution should always be used when nailing, cutting, or drilling in
walls, floors, and ceilings that may contain these items.
Studs and joists are normally spaced 40 or 60 cm apart
on centre and are 38 mm wide. Anything closer together, or of
a different width, may not be a stud or joist.
LIMITED TWO-YEAR WARRANTY
Zircon Corporation (“Zircon”) warrants to the
original purchaser (or original user by gift) that this
product will be free from defects in materials and
workmanship for two years from date of purchase.
This warranty is limited to the electronic circuitry of
the product, and specifically excludes consumable
parts, including batteries, and software, even if
packaged with the product. Defects caused by abuse,
modification, handling contrary to these instructions,
other unreasonable use, or neglect are not covered
under this warranty. No liability is accepted for
normal wear and tear and minor defects which do not
detract from the function of the product. This Limited
Warranty is in addition to the statutory rights to
which purchaser is entitled and which are not limited
by this warranty.
THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IF ANY IMPLIED
WARRANTIES ARE APPLICABLE, THEY ARE LIMITED TO
THE TWO-YEAR PERIOD DEFINED ABOVE. IN NO EVENT
WILL ZIRCON BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING
FROM POSSESSION, USE, OR MALFUNCTION OF THIS
PRODUCT. NO OTHER REPRESENTATIONS OR CLAIMS OF
A SIMILAR NATURE WILL BIND OR OBLIGATE ZIRCON.
Any in-warranty defective product returned to the
place of purchase with original proof of purchase
will be replaced or purchase price refunded at
retailer’s option. This Limited Warranty applies only
to products purchased within the European Economic
Area and United Kingdom. For warranties applicable to
Zircon products purchased in other geographical areas,
see www.zircon.com/warranty.
For questions about this warranty or
Zircon products, contact:
Customer Service:
[phone] or [phone]
Monday–Friday, 8:00 a.m. to 5:00 p.m. PST
www.zircon.com • [e-mail]
©2019 Zircon Corporation • P/N 67794 • Rev B 07/19
ACT, DeepScan, MultiScanner, SpotLite, WireWarning
and Zircon are registered trademarks or trademarks
of Zircon Corporation.

4 scanning modes:
• StudScan locates centre and edges of stud (wood or metal)
up to 19 mm deep
• DeepScan locates centre and edges of stud up to
38 mm deep
• Metal Scan locates ferrous (magnetic) metal,such as steel,
up to 75 mm deep, and non-ferrous (non-magnetic) metal,
such as copper, up to 38 mm deep
• AC Scan locates live, unshielded AC wires up to 50 mm deep
WireWarning Detection automatically detects and alerts for
live, unshielded AC (alternating current) wires up to 50 mm deep
in StudScan, DeepScan and Metal Scan Modes.
To activate scanner, press and hold Power Button.
If button is not pressed and held, unit shuts off.
FIND A STUD
For best results, hold the scanner as
shown (Figure A) and move slowly
when scanning. Do not touch the
surface during calibration or scan.
1. Set mode to StudScan.
2. Hold scanner flat against wall,
then press and hold Power Button.
In 1 – 2 seconds, the unit will
calibrate. A short beep confirms
that calibration is complete.
DO NOT MOVE SCANNER
DURING CALIBRATION.
3. While holding down the Power
Button, slide the scanner slowly along
the wall. When scanner finds the edge
of a stud, EDGE displays. (Figure B)
4. Continue sliding. When scanner
finds the centre of a stud, CENTER
displays, light illuminates, 3 bars show
signal strength, and a buzzer sounds.
(Figure C)
4. Continue in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the live, unshielded AC wiring. If the unit indicates live
electricity over a large area, reduce the sensitivity of the scanner
to refine the scanning area and more accurately locate the live
AC wiring.
WARNING DO NOT ASSUME THERE ARE NO
LIVE ELECTRICAL WIRES IN THE WALL.
DO NOT TAKE ACTIONS THAT COULD BE DANGEROUS
IF THE WALL CONTAINS A LIVE ELECTRICAL WIRE.
ALWAYS TURN OFF THE ELECTRICAL, GAS, AND WATER
SUPPLIES BEFORE PENETRATING A SURFACE. FAILURE
TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
ELECTRIC SHOCK, FIRE, AND/OR SERIOUS INJURY OR
PROPERTY DAMAGE.
REFINE AC SCAN
1. Release Power Button, then position the scanner over one
of the previous marks. This will reset to a lower sensitivity and
narrow the scan area. (Figure G)
2. Press and hold Power Button, then repeat 3 and 4 under
SCAN FOR AC.
3. Repeat as needed for increased accuracy. (Figure H)
NOTE: AC Scan only detects live (hot) unshielded
AC wiring. Refer to the WARNING statement under
WireWarning Detection below for important details
and warnings about AC detection.
WIREWARNING DETECTION The Zircon®WireWarning
Detection feature works continuously in StudScan, DeepScan and
Metal Scan Modes. When live, unshielded AC voltage is detected,
the WireWarning Detection Indicator shows. If scanning begins
over a live AC wire, the Indicator or middle bars (in AC Scan) will
flash on display continuously.
Use extreme caution under these circumstances, or whenever
live AC wiring is present.
WARNING
THE SCANNER MAY NOT DETECT LIVE
CURRENT IF WIRES ARE MORE THAN
50 mm BELOW THE SCANNED SURFACE, IN CONCRETE,
ENCASED IN CONDUIT, BEHIND A PLYWOOD SHEAR
WALL OR METALLIC WALL COVERING, OR IF MOISTURE IS
PRESENT IN THE ENVIRONMENT OR SCANNED SURFACE.
NOTE: If only two signal bars show
(Figure D), stud may be too deep.
Select DeepScan Mode, and
repeat scan.
Scanner automatically recalibrates when
in use. If arrows appear on the display,
the scanner was calibrated too close to
a stud then moved away. This is ACT
(Auto Correcting Technology)
(Figure E).
SCAN IN DEEPSCAN MODE
DeepScan Mode can detect studs up to 38 mm deep. To scan for
deeper studs, or for use with thicker walls:
1. Set mode to DeepScan.
2. Repeat steps 2 – 4 under FIND A STUD.
SCAN FOR METAL
Use Metal Scan Mode to determine if the stud found is wood,
or a metal stud or pipe.
1. Set mode to Metal Scan.
2. For maximum sensitivity, press and hold Power Button.
Hold the scanner away from the surface until a short beep
confirms calibration is complete,
then place against the surface to
be scanned.
3. While continuing to
hold Power Button, slide the
scanner slowly against the wall.
Mark the spot where the most
middle bars display. For a strong
read, the scanner will light up
and a steady beep will sound. (Figure F)
4. Continue sliding in same direction until bars reduce,
then reverse direction. Mark the spot where the display
bars peak. The midpoint between the two marks is the location
of the metal object.
NOTE: If the unit indicates a large area of metal,
refine the scan to more accurately find the centre.
REFINE METAL SCAN
1. Release Power Button,
then position the scanner over
one of the previous marks.
This will reset to a lower
sensitivity and narrow the
scan area. (Figure G)
2. Press and hold Power
Button, then repeat 3
and 4 under SCAN FOR METAL.
3. Repeat as needed
for increased accuracy.
(Figure H)
NOTE: If any bars
display, metal is present.
Small targets or targets
deep below the surface may
only show one or two bars,
and the scanner may not be
able to locate the centre of
the metal.
SCAN FOR AC (alternating current)
Use AC Scan Mode to find live, unshielded wiring.
ALWAYS TURN OFF POWER WHEN WORKING NEAR
ELECTRICAL WIRES (EXCEPT WHEN SCANNING).
1. Set mode to AC Scan.
2. Hold scanner flat against wall, then press and hold
Power Button. A short beep confirms that calibration is complete.
DO NOT MOVE SCANNER DURING CALIBRATION.
3. While holding Power Button, slide the scanner slowly
against the wall. Mark the spot where the most middle
bars display. For a strong read, the scanner will light up and a
steady beep will sound. (Figure F)
DeepScan®MetalScan
StudScanACScan
Figure F
DeepScan®MetalScan
StudScanACScan
Figure G
DeepScan®MetalScan
StudScanACScan
Figure H
DeepScan
®
Metal Scan
StudScan AC Scan
SpotLite®Pointer
Backlit LCD Display
Mode Selector
Switch
Battery
Door Tab
ACT™(Auto
Correcting
Technology)
Indicator
Signal
Strength
Indicator
Ergonomic Rubber Grip
Power Button
StudScan
Mode
Indicator
Stud EDGE / CENTER Indicators
Metal Scan
Mode Indicator
Target
Indicator Bars
Low Battery Indicator DeepScan®
Mode
Indicator
Figure B
Figure A
Figure C
Figure D
BEFORE YOU BEGIN
ZIRCON®STUD FINDERS WORK BY SENSING DENSITY CHANGES BEHIND THE WALL. OTHER OBJECTS CAN BE DETECTED
ESPECIALLY IF THEY ARE VERY CLOSE TO THE WALL. DO NOT ASSUME EVERYTHING DETECTED IS A STUD.
- Always use a new 9V alkaline battery with an extended expiration date at least 3 years beyond the current date. Match battery
direction to image inside of battery cavity.
- Do not rely exclusively on the scanner to locate such items behind a surface. Use other information to help locate items before
penetrating the surface, including construction plans, visible points of entry of pipes and wiring into walls such as in a basement, and
standard stud-spacing practices.
- Always start your scan in StudScan Mode which scans through surfaces up to 19 mm deep. Scanning in DeepScan®Mode may
detect an object further behind the wall that may or may not be a stud.
- Always scan for studs at several different heights on the wall and mark the location of every target indicated by the
stud finder. This is called “mapping the wall.” Pipes and other objects will likely not give consistent readings from floor to ceiling,
like a stud would.
- Readings should always be consistent and repeatable.
- Zircon stud finders are recommended for interior use only.
- Studs normally run from floor to ceiling, except above and below windows, and above doors.
- Other objects commonly contained in walls, floors, or ceilings are water pipes, gas lines, firestops, and electrical wiring.
- Sensing depth and accuracy can vary depending on scanning environment conditions such as mineral content, moisture,
texture and consistency of the wall materials.
- Always turn off power when working near electrical wires.
- Depending on the proximity of electrical wiring or pipes to the wall surface, the scanner may detect them in the same manner
as studs. Caution should always be used when nailing, cutting, or drilling in walls, floors, and ceilings that may contain these items.
- Studs and joists are normally spaced 40 or 60 cm apart on centre, are normally 38 mm wide, and may be separated by firestops.
Anything closer together, or of a different width, may not be a stud or joist.
MultiScanner®L550
Multifunction Wall Scanner
TROUBLESHOOTING & CONSTRUCTION TIPS
SITUATION LIKELY CAUSE SOLUTION
Scanner detects
objects other than
studs or finds more
studs than should
be there.
Electrical wiring
and metal or plastic
pipes may be near, or
touching, the back of
the wall surface.
• Scan the area in Metal Scan and / or AC Scan to determine if metal or live,
unshielded AC wiring is present.
• Check for other studs equally spaced to either side at 30, 40, or 60 cm,
or check for the same stud at spots directly above or below the first scan area.
• Standard studs measure approximately 38 mm between edges.
Anything larger or smaller is likely not a stud (unless near door or window).
Area of voltage
appears larger than
actual wire during
AC Scan.
Voltage detection can
spread on drywall by as
much as 30 cm on each
side of the wire.
Narrow the scan detection: 1. Turn scanner off. 2. Turn it on again at the
edge of where the wire was first detected. 3. Repeat scan.
Difficulty detecting
metal.
Scanner calibrated over
metal object.
The scanner may have been calibrated over a metal object, reducing sensitivity.
Try calibrating in another location.
Metal targets too deep
or small.
Scan in both horizontal and vertical directions. Metal sensitivity is increased
when metal object is parallel to sensor (located under the Zircon Logo).
Metal object reading
appears wider than
actual size.
Metal has a greater
density than wood.
To reduce sensitivity in Metal Scan Mode, recalibrate scanner over either of
first two marks (see steps under REFINE METAL SCAN).
Constant readings of
studs near windows
and doors.
Multiple studs are
in use.
Double and triple studs are sometimes used around doors and windows.
Headers are used above them. Detect outer edges so you know where
to begin.
Electrical wires
suspected but
none detected.
Wires are shielded
by a metal conduit,
braided wire or
metallic wall covering.
Use Metal Scan Mode to scan for metal, wire, or metal conduit.
Wires deeper than
50 mm from
the surface might
not be detected.
If there is an outlet switch, turn it to ON position while scanning, but turn
OFF when working near the wires. Use extra caution if the area has
plywood, thick wood backing behind drywall, or walls that are thicker
than normal.
Wires may not be live. Plug a lamp into the outlet and turn it on to test whether wires are live.
Low Battery Indicator
flashes and scanner
does not operate.
Low battery. Install a new 9V alkaline battery with an extended expiration date.
GB
Visit uk.zircon.com for the
most current instructions.
ZirconCorporation ZirconTV
ZirconTools
|
ZirconToolPro ZirconTools
AC Scan /
WireWarning®
Detection
Indicator
Figure E
WORKING WITH DIFFERENT MATERIALS
Wallpaper This scanner functions normally on walls covered
with wallpaper or fabric, unless the materials are metallic
foil, contain metallic fibres, or are still wet after application.
Wallpaper may need to dry for several weeks after application.
Freshly painted walls Paint may take a week or longer to dry
after application. If it is difficult to locate a stud in either stud
scanning modes on dry or freshly-dried paint, switch to Metal
Scan Mode to locate the nails or drywall screws holding drywall
to the studs.
Lath and plaster Due to irregularities in plaster thickness,
it is difficult for this scanner to locate studs in either stud-
scanning mode. Switch mode to Metal Scan Mode to locate the
nail heads holding wood lath to the studs. If the plaster has
metal mesh reinforcement, the scanner will be unable to detect
studs through that material.
Highly textured walls or acoustic ceilings When scanning
a ceiling or wall with an uneven surface, place thin cardboard
on the surface to be scanned and scan over the cardboard in
DeepScan Mode. If irregular scanning results are received, switch
to Metal Scan Mode to locate nails or drywall screws that line
up vertically where a stud or joist is positioned.
Wood flooring, subflooring, or gypsum drywall over
plywood sheathing Use DeepScan Mode and move
the scanner slowly. The Signal Strength Indicator may only
display a few bars when the scanner locates a stud through
a thick surface.
This scanner cannot scan for wood studs and joists through
carpet and padding. In problematic situations, try using Metal
Scan Mode to locate nails or screws that may line up vertically
or horizontally where a stud or joist is respectively positioned.
NOTE: Sensing depth and accuracy can vary depending
on scanning environment conditions such as mineral
content, moisture, texture, and consistency of the
wall materials.
Electrical wiring and pipes Depending on the proximity of
electrical wiring or pipes to the wall surface, the scanner may
detect them in the same manner as studs.
Caution should always be used when nailing, cutting, or drilling in
walls, floors, and ceilings that may contain these items.
Studs and joists are normally spaced 40 or 60 cm apart
on centre and are 38 mm wide. Anything closer together, or of
a different width, may not be a stud or joist.
LIMITED TWO-YEAR WARRANTY
Zircon Corporation (“Zircon”) warrants to the
original purchaser (or original user by gift) that this
product will be free from defects in materials and
workmanship for two years from date of purchase.
This warranty is limited to the electronic circuitry of
the product, and specifically excludes consumable
parts, including batteries, and software, even if
packaged with the product. Defects caused by abuse,
modification, handling contrary to these instructions,
other unreasonable use, or neglect are not covered
under this warranty. No liability is accepted for
normal wear and tear and minor defects which do not
detract from the function of the product. This Limited
Warranty is in addition to the statutory rights to
which purchaser is entitled and which are not limited
by this warranty.
THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IF ANY IMPLIED
WARRANTIES ARE APPLICABLE, THEY ARE LIMITED TO
THE TWO-YEAR PERIOD DEFINED ABOVE. IN NO EVENT
WILL ZIRCON BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING
FROM POSSESSION, USE, OR MALFUNCTION OF THIS
PRODUCT. NO OTHER REPRESENTATIONS OR CLAIMS OF
A SIMILAR NATURE WILL BIND OR OBLIGATE ZIRCON.
Any in-warranty defective product returned to the
place of purchase with original proof of purchase
will be replaced or purchase price refunded at
retailer’s option. This Limited Warranty applies only
to products purchased within the European Economic
Area and United Kingdom. For warranties applicable to
Zircon products purchased in other geographical areas,
see www.zircon.com/warranty.
For questions about this warranty or
Zircon products, contact:
Customer Service:
[phone] or [phone]
Monday–Friday, 8:00 a.m. to 5:00 p.m. PST
www.zircon.com • [email protected]
©2019 Zircon Corporation • P/N 67794 • Rev B 07/19
ACT, DeepScan, MultiScanner, SpotLite, WireWarning
and Zircon are registered trademarks or trademarks
of Zircon Corporation.