Hoyt DOUBLE CHECK User manual

DOUBLE CHECK
INSTRUCTION MANUAL

SAFETY RULES
CAUTION RISK OF ELECTRIC SHOCK
This tester has been designed with your safety in mind.
However, no design can completely protect against
incorrect use. Electrical circuits can be dangerous and/or
lethal when lack of caution or poor safety practices are
used.
Do not carry out field measurements on either the power
system grounding, during periods of forecast lightning
activity, in areas that encompass the station being
measured or of the power network connected to the
station being measured. In the event that lightning occurs,
stop all testing and isolate any temporarily installed test
spikes.
Preparations for testing of power system grounding can
leave personnel vulnerable to exposure caused by faults
at or fed from the system under test, transferred potentials
from remote test grounds, and inadvertent line
energisations.
While the probability of the occurrence of one of these
events is low, personnel safety will, nevertheless, be
enhanced by the following:
When working near high tension systems rubber gloves
and safety shoes should be worn.
Work on clean, dry crushed rock or an insulating blanket
or use insulated ladder or insulated lift.
Avoid bare hand to hand contact between the tester and
extended test leads.
INDEX PAGE
SAFETY RULES .................................. 1-2
SAFETY CHECKS ............................... 3
DON'T TOUCH .................................... 3
GENERAL DESCRIPTION .................. 4-5
BRIEF PRODUCT DESCRIPTION ...... 6
FEATURES .......................................... 7-8
ACCESSORIES ................................... 8
PRE-TESTING PROOFING TEST ....... 8
POST-TESTING PROOFING TEST ..... 9
OPERATING INSTRUCTIONS ............ 10
FACIA LABEL ....................................... 11
SOME APPLICATIONS ........................ 12
PRINCIPLE OF HOW IT WORK-
DISPLAY-RESULTS ............................. 13
FUSE REPLACEMENT ........................ 14
CHANGING TIPS ................................. 14
TAKING CARE OF YOUR DOUBLE
CHECK ................................................. 14
CLEANING ........................................... 14
SPECIFICATIONS ............................... 15
OPTIONS ............................................. 16
LIMITED WARRANTY .......................... 17-18
-1-

SAFETY RULES
CAUTION RISK OF ELECTRIC SHOCK
This tester has been designed with your safety in mind.
However, no design can completely protect against
incorrect use. Electrical circuits can be dangerous and/or
lethal when lack of caution or poor safety practices are
used.
Do not carry out field measurements on either the power
system grounding, during periods of forecast lightning
activity, in areas that encompass the station being
measured or of the power network connected to the
station being measured. In the event that lightning occurs,
stop all testing and isolate any temporarily installed test
spikes.
Preparations for testing of power system grounding can
leave personnel vulnerable to exposure caused by faults
at or fed from the system under test, transferred potentials
from remote test grounds, and inadvertent line
energisations.
While the probability of the occurrence of one of these
events is low, personnel safety will, nevertheless, be
enhanced by the following:
When working near high tension systems rubber gloves
and safety shoes should be worn.
Work on clean, dry crushed rock or an insulating blanket
or use insulated ladder or insulated lift.
Avoid bare hand to hand contact between the tester and
extended test leads.
INDEX PAGE
SAFETY RULES .................................. 1-2
SAFETY CHECKS ............................... 3
DON'T TOUCH .................................... 3
GENERAL DESCRIPTION .................. 4-5
BRIEF PRODUCT DESCRIPTION ...... 6
FEATURES .......................................... 7-8
ACCESSORIES ................................... 8
PRE-TESTING PROOFING TEST ....... 8
POST-TESTING PROOFING TEST ..... 9
OPERATING INSTRUCTIONS ............ 10
FACIA LABEL ....................................... 11
SOME APPLICATIONS ........................ 12
PRINCIPLE OF HOW IT WORK-
DISPLAY-RESULTS ............................. 13
FUSE REPLACEMENT ........................ 14
CHANGING TIPS ................................. 14
TAKING CARE OF YOUR DOUBLE
CHECK ................................................. 14
CLEANING ........................................... 14
SPECIFICATIONS ............................... 15
OPTIONS ............................................. 16
LIMITED WARRANTY .......................... 17-18
-1-

SAFETY CHECK
CAUTION RISK OF ELECTRIC SHOCK
CAUTION READ THE MANUAL
Before using the tester check its physical condition and
the fuses.
Poles and connecting lead must be free of cracks or any
damages and must be insulated as when they were new.
Fuse replacement is described later in this user's manual..
When changing the fuses, always disconnect from any
circuit.
When replacing the fuse use only the type specified, HBC
fuse, and insert correctly into the fuse holder.
Always do a pre-proofing and post-proofing test as
described later in this manual.
DON'T TOUCH
Don't touch exposed wiring, connections or other "Live"
parts of an electrical circuit. If in doubt, check the circuit
first for voltage before touching it.
Do not use cracked of broken test leads.
THIS INSTRUMENT SHOULD ONLY BE USED BY A
COMPETENT, SUITABLY TRAINED PERSON.
REMEMBER
SAFETY IS NO ACCIDENT
Disconnect the tester from any external circuit when
checking or changing the Fuse and/or batteries.
Follow the instructions in the Manual for every
measurement. Read and understand the general
instructions before attempting to use this tester.
CAUTION READ THE MANUAL
-2- -3-

SAFETY CHECK
CAUTION RISK OF ELECTRIC SHOCK
CAUTION READ THE MANUAL
Before using the tester check its physical condition and
the fuses.
Poles and connecting lead must be free of cracks or any
damages and must be insulated as when they were new.
Fuse replacement is described later in this user's manual..
When changing the fuses, always disconnect from any
circuit.
When replacing the fuse use only the type specified, HBC
fuse, and insert correctly into the fuse holder.
Always do a pre-proofing and post-proofing test as
described later in this manual.
DON'T TOUCH
Don't touch exposed wiring, connections or other "Live"
parts of an electrical circuit. If in doubt, check the circuit
first for voltage before touching it.
Do not use cracked of broken test leads.
THIS INSTRUMENT SHOULD ONLY BE USED BY A
COMPETENT, SUITABLY TRAINED PERSON.
REMEMBER
SAFETY IS NO ACCIDENT
Disconnect the tester from any external circuit when
checking or changing the Fuse and/or batteries.
Follow the instructions in the Manual for every
measurement. Read and understand the general
instructions before attempting to use this tester.
CAUTION READ THE MANUAL
-2- -3-

EVERYTHING
IS
DOUBLED
EVERYTHING
IS
DOUBLED
Safety has been the most important factor while
developing this product. Each circuit is present on the left
pole as well as on the right pole.
Each circuit works independently from each other.
The cord connecting the poles is doubled as well, so each
circuit has it's own conductor going from one pole to the
other.
The DOUBLE CHECK has Visual Voltage Indicators
(neons) which lit when the voltage between the poles is
superior or equal to 110V, 240V, 380V and 415Vac
Double pole are supplied with accessories Standard as
shown below.
GENERAL DESCRIPTION
Have you ever try to measure the voltage between
overhead lines or between Line and Earth outside a
building in the open, while on a ladder?
Did you do it using a normal meter with normal test leads?
Were you scared while doing it? I bet you were and you
have all the right reasons to be.
This is why the Double Check Was initially designed.
Double Check has a Visual Voltmeter with a Neon Light
scale on each side, which lit proportionally to the voltage
between its sticks. Double Check has a Visual Voltage
Detector with a High Bright Led on each side, which Lit
when voltage is Detected between it's sticks.
Double Check has an Acoustic Voltage Detector which
sounds a LOUD Buzzer, on each side when voltage is
Detected between it's sticks. The Double check has both
sides Fused, and at least, everything Doubled.
It's a CAT.IV Double pole Measurement System which
has it's poles long enough to be clear of the lines
while testing them.
Double Check has 2 Insulated non slipping rubberized
handles. These Double poles testers are made out of
highly insulating Super Polished High Grade Fiber
Glass. Their color is highly visible and it is strong and
durable. Both poles are electrically connected by a High
Strength Insulated Cord which is securely held by
customized Strength reliefs . Each circuit is fully fused
by High Breaking Capacity Fuses.
-4- -5-

EVERYTHING
IS
DOUBLED
EVERYTHING
IS
DOUBLED
Safety has been the most important factor while
developing this product. Each circuit is present on the left
pole as well as on the right pole.
Each circuit works independently from each other.
The cord connecting the poles is doubled as well, so each
circuit has it's own conductor going from one pole to the
other.
The DOUBLE CHECK has Visual Voltage Indicators
(neons) which lit when the voltage between the poles is
superior or equal to 110V, 240V, 380V and 415Vac
Double pole are supplied with accessories Standard as
shown below.
GENERAL DESCRIPTION
Have you ever try to measure the voltage between
overhead lines or between Line and Earth outside a
building in the open, while on a ladder?
Did you do it using a normal meter with normal test leads?
Were you scared while doing it? I bet you were and you
have all the right reasons to be.
This is why the Double Check Was initially designed.
Double Check has a Visual Voltmeter with a Neon Light
scale on each side, which lit proportionally to the voltage
between its sticks. Double Check has a Visual Voltage
Detector with a High Bright Led on each side, which Lit
when voltage is Detected between it's sticks.
Double Check has an Acoustic Voltage Detector which
sounds a LOUD Buzzer, on each side when voltage is
Detected between it's sticks. The Double check has both
sides Fused, and at least, everything Doubled.
It's a CAT.IV Double pole Measurement System which
has it's poles long enough to be clear of the lines
while testing them.
Double Check has 2 Insulated non slipping rubberized
handles. These Double poles testers are made out of
highly insulating Super Polished High Grade Fiber
Glass. Their color is highly visible and it is strong and
durable. Both poles are electrically connected by a High
Strength Insulated Cord which is securely held by
customized Strength reliefs . Each circuit is fully fused
by High Breaking Capacity Fuses.
-4- -5-

FEATURES
Insulated Double Poles: These Orange High Polished
Fiber Glass rods are long enough to be safe and clear of
the lines while testing.
They are made out of Super Smooth Polished High Grade
and Super Insulating Fiber Glass material. This makes the
user confident about it's safety.
The user is not at risk because he does not have to bind
over energized conductors.
The user is always at a safe distance from the energized
wires under test.
Visual Voltmeter : Double poles have, on each side, a
Scaled Neon Voltmeter showing when the voltage has
been reached. The neon lit in a bar-graph fashion,
clockwise, with the lower voltage on the left side.
Visual Voltage Detector: As soon as voltage is detected,
the Voltage Detected, High Bright Led indicator turns
ON. This indicate to the user that dangerous voltage is
present between the tips of Double Check. This indicator
is on both sides ad are working individually from each
other.
Acoustic Voltage Detector: As soon as voltage is
detected the Acoustic Voltage Detector sounds a LOUD
and piercing noise to indicate to the user that voltage has
been detected between the tips.
HBC Fuses: For added safety, the Double Check uses
High Breaking Capacity Fuse (also called High Rupture
Capacity fuse or HRC).
Rubberized Handles: To stop the user's hand to slip, the
handles are made of non slippery rubber material. This
add to safety while in use.
BRIEF PRODUCT DESCRIPTION
HBC
FUSE
HBC
FUSE
SUN COVER
ISOLATED
HANDLE
ISOLATED
HANDLE
ISOLATED
POLE
ISOLATED
CONNECTING LEADS
LED
VOLTAGE
INDICATOR
NEON
VOLTAGE
SCALE
ISOLATED
POLE
AUDIO
VOLTAGE
INDICATOR
TIP
TIP
-6- -7-

FEATURES
Insulated Double Poles: These Orange High Polished
Fiber Glass rods are long enough to be safe and clear of
the lines while testing.
They are made out of Super Smooth Polished High Grade
and Super Insulating Fiber Glass material. This makes the
user confident about it's safety.
The user is not at risk because he does not have to bind
over energized conductors.
The user is always at a safe distance from the energized
wires under test.
Visual Voltmeter : Double poles have, on each side, a
Scaled Neon Voltmeter showing when the voltage has
been reached. The neon lit in a bar-graph fashion,
clockwise, with the lower voltage on the left side.
Visual Voltage Detector: As soon as voltage is detected,
the Voltage Detected, High Bright Led indicator turns
ON. This indicate to the user that dangerous voltage is
present between the tips of Double Check. This indicator
is on both sides ad are working individually from each
other.
Acoustic Voltage Detector: As soon as voltage is
detected the Acoustic Voltage Detector sounds a LOUD
and piercing noise to indicate to the user that voltage has
been detected between the tips.
HBC Fuses: For added safety, the Double Check uses
High Breaking Capacity Fuse (also called High Rupture
Capacity fuse or HRC).
Rubberized Handles: To stop the user's hand to slip, the
handles are made of non slippery rubber material. This
add to safety while in use.
BRIEF PRODUCT DESCRIPTION
HBC
FUSE
HBC
FUSE
SUN COVER
ISOLATED
HANDLE
ISOLATED
HANDLE
ISOLATED
POLE
ISOLATED
CONNECTING LEADS
LED
VOLTAGE
INDICATOR
NEON
VOLTAGE
SCALE
ISOLATED
POLE
AUDIO
VOLTAGE
INDICATOR
TIP
TIP
-6- -7-

POST-TESTING SAFETY PROOFING TEST
Always use a double check proofing unit after testing
The double Check proofing unit is an accessory which is
specially made for the Double Check (see double check
proofing unit user's manual).
It comprise of a rotary voltage selector.
Connect the leads of the double check proofing unit to the
tips of the double check.
Select the wanted voltage and press TEST.
When everything is correct;
1.The corresponding neon scale should lit.
2.The Led voltage detector should lit.
3.The Acoustic Voltage Detector should sounds.
If this is not the case, see Fuse replacement. Disregard
previous test results if these three conditions are not
correct.
Insulated Cord: Double Check uses a High Strength
cord between the poles. This is securely held by
customized strong Strength reliefs.
Interchangeable Tips: Double Check
uses a strong 8mm Standard thread to
attach all the different type of tips.
ACCESSORIES
Piercing cones tips, hooks, Non
Standard Tips can be made on
Request.
PRE-TESTING SAFETY PROOFING TEST
Always use a double check proofing unit before testing.
The double Check proofing unit is an accessory which is
specially made for the Double Check (see double check
proofing unit user's manual).
It comprise of a rotary voltage selector.
Connect the leads of the double check proofing unit to the
tips of the double check.
Select the wanted voltage and press TEST.
When everything is correct;
1.The corresponding neon scale should lit.
2.The Led voltage detector should lit.
3.The Acoustic Voltage Detector should sounds.
If this is not the case, see Fuse replacement.
Do not proceed if these three conditions are not
correct.
-8- -9-

POST-TESTING SAFETY PROOFING TEST
Always use a double check proofing unit after testing
The double Check proofing unit is an accessory which is
specially made for the Double Check (see double check
proofing unit user's manual).
It comprise of a rotary voltage selector.
Connect the leads of the double check proofing unit to the
tips of the double check.
Select the wanted voltage and press TEST.
When everything is correct;
1.The corresponding neon scale should lit.
2.The Led voltage detector should lit.
3.The Acoustic Voltage Detector should sounds.
If this is not the case, see Fuse replacement. Disregard
previous test results if these three conditions are not
correct.
Insulated Cord: Double Check uses a High Strength
cord between the poles. This is securely held by
customized strong Strength reliefs.
Interchangeable Tips: Double Check
uses a strong 8mm Standard thread to
attach all the different type of tips.
ACCESSORIES
Piercing cones tips, hooks, Non
Standard Tips can be made on
Request.
PRE-TESTING SAFETY PROOFING TEST
Always use a double check proofing unit before testing.
The double Check proofing unit is an accessory which is
specially made for the Double Check (see double check
proofing unit user's manual).
It comprise of a rotary voltage selector.
Connect the leads of the double check proofing unit to the
tips of the double check.
Select the wanted voltage and press TEST.
When everything is correct;
1.The corresponding neon scale should lit.
2.The Led voltage detector should lit.
3.The Acoustic Voltage Detector should sounds.
If this is not the case, see Fuse replacement.
Do not proceed if these three conditions are not
correct.
-8- -9-

110V
220V
415V
280V
FACIA LABEL (Instructions)OPERATING INSTRUCTIONS
Visual Inspection: Inspect the Double Check visually for
any cracks or physical damage. If your equipment seems
not perfect, send it for servicing.
Pre-Safety Proofing Test: Proceed with the pre-safety
Proofing Test as described in the user's manual of your
double check's proofing unit (sold separately). Once this
pre-safety test is made and is satisfactory, and only then,
proceed to use the double check.
Use it
Make sure you are well on your foots and stable and will
not slip or fall in any case.
Connect one side of your double check to one conductor
by making contact with one of the conductor, then, touch
the other conductor with the other pole of your double
check.
Taking all the necessary precautionary measures
explained by your training, connect the double check
between the conductors to verify.
Listen, visualize and concludes results form the double
check.
Post-Safety Proofing Test: Proceed with the post-safety
Proofing Test as described in the user's manual of your
double check's proofing unit (sold separately). If the post-
safety test is not satisfactory, disregard results made
previously and send your double check for servicing.
In that case, do not proceed with any decision involving
Double Check.
-10- -11-

110V
220V
415V
280V
FACIA LABEL (Instructions)OPERATING INSTRUCTIONS
Visual Inspection: Inspect the Double Check visually for
any cracks or physical damage. If your equipment seems
not perfect, send it for servicing.
Pre-Safety Proofing Test: Proceed with the pre-safety
Proofing Test as described in the user's manual of your
double check's proofing unit (sold separately). Once this
pre-safety test is made and is satisfactory, and only then,
proceed to use the double check.
Use it
Make sure you are well on your foots and stable and will
not slip or fall in any case.
Connect one side of your double check to one conductor
by making contact with one of the conductor, then, touch
the other conductor with the other pole of your double
check.
Taking all the necessary precautionary measures
explained by your training, connect the double check
between the conductors to verify.
Listen, visualize and concludes results form the double
check.
Post-Safety Proofing Test: Proceed with the post-safety
Proofing Test as described in the user's manual of your
double check's proofing unit (sold separately). If the post-
safety test is not satisfactory, disregard results made
previously and send your double check for servicing.
In that case, do not proceed with any decision involving
Double Check.
-10- -11-

PRINCIPLE OF HOW IT WORK-DISPLAYS-
RESULTS
The Fused Circuitry: In series with each circuit is a HBC
or HRC fuse. These fuse protects the user and the circuit
against over-current.
The Neon Voltage Scale Indication and Display: The
Voltmeters results are shown on a Neon Scales on both
sides. These voltmeters use a bar-graph style scale, with
the lower value on the left side, going clockwise to the
right. There are neon lights for
110V, 220V, 280V and 415V
As the voltage increase,
the neons lights up, as
shown on the right, neon
110V and neon 220V lit
to show that voltage on
the tips is at least equal
to 220V.
The Voltage Detector with LED: The led Voltage
Detector lit up as soon as there is enough voltage across
the tips between the poles. This indicates that voltage
between the tips has reached a dangerous level and
therefore could be lethal. Once the Led lit, be extra careful.
The Voltage Detector with Buzzer: The Acoustic Voltage
Detector sounds as soon as there is enough voltage
across the tips between the poles. This indicates that
voltage between the tips has reached a dangerous level
and therefore could be lethal. Once the Acoustic Voltage
Detector sounds, be extra careful.
110V
220V
415V
280V
SOME APPLICATIONS
lMeasure and confirm Overhead Voltage between Lines,
or Line to Earth/Ground and/or Lines to Neutral.
lMeasurements can be done in all Safety due to the
clearance from the probes contacts.
lThis is done when, for example, using a lift bucket from
a truck, then the technician can stand in the bucket,
and still can reach all the phases and check voltage
between each phases and between each conductors
without being at risk.
lCheck Voltage Presence between two conductors or
between Phase and Earth.
lMeasure and Detect Voltage between Bus bars and
between Bus bar and Earth.
lUse where you are not comfortable with your normal
test leads.
lTips can be changed for different types.
lAvailable tips: Fork type, Piercing trough Insulation,
Cone, Flat tip, Other tips on Demand.
Ritht Contact Tip
L1
L2
L3
Double Check
Left Pole
Left voltage
Indicator
Left Handle
Double Check
Right Pole
Right Voltage
Indicator
Right Handle
Super Pull-Resist
Insulted
Connecting Cords
Left Contact Tip
-12- -13-

PRINCIPLE OF HOW IT WORK-DISPLAYS-
RESULTS
The Fused Circuitry: In series with each circuit is a HBC
or HRC fuse. These fuse protects the user and the circuit
against over-current.
The Neon Voltage Scale Indication and Display: The
Voltmeters results are shown on a Neon Scales on both
sides. These voltmeters use a bar-graph style scale, with
the lower value on the left side, going clockwise to the
right. There are neon lights for
110V, 220V, 280V and 415V
As the voltage increase,
the neons lights up, as
shown on the right, neon
110V and neon 220V lit
to show that voltage on
the tips is at least equal
to 220V.
The Voltage Detector with LED: The led Voltage
Detector lit up as soon as there is enough voltage across
the tips between the poles. This indicates that voltage
between the tips has reached a dangerous level and
therefore could be lethal. Once the Led lit, be extra careful.
The Voltage Detector with Buzzer: The Acoustic Voltage
Detector sounds as soon as there is enough voltage
across the tips between the poles. This indicates that
voltage between the tips has reached a dangerous level
and therefore could be lethal. Once the Acoustic Voltage
Detector sounds, be extra careful.
110V
220V
415V
280V
SOME APPLICATIONS
lMeasure and confirm Overhead Voltage between Lines,
or Line to Earth/Ground and/or Lines to Neutral.
lMeasurements can be done in all Safety due to the
clearance from the probes contacts.
lThis is done when, for example, using a lift bucket from
a truck, then the technician can stand in the bucket,
and still can reach all the phases and check voltage
between each phases and between each conductors
without being at risk.
lCheck Voltage Presence between two conductors or
between Phase and Earth.
lMeasure and Detect Voltage between Bus bars and
between Bus bar and Earth.
lUse where you are not comfortable with your normal
test leads.
lTips can be changed for different types.
lAvailable tips: Fork type, Piercing trough Insulation,
Cone, Flat tip, Other tips on Demand.
Ritht Contact Tip
L1
L2
L3
Double Check
Left Pole
Left voltage
Indicator
Left Handle
Double Check
Right Pole
Right Voltage
Indicator
Right Handle
Super Pull-Resist
Insulted
Connecting Cords
Left Contact Tip
-12- -13-

SPECIFICATIONS
GENERAL
Maximum Rating between Poles............... 450V
Category.................................................... IV
FUSES
Type........................................................... HBC/HRC
Rate of Rupture......................................... Slow Blow
Current Rating........................................... 500mA
Voltage Rating........................................... 600V
Quantity..................................................... 2
VOLTMETER The Neon Voltage Scale Indication
Neon lit when Voltage > or = .................... 110V
Neon lit when Voltage > or = .................... 220V
Neon lit when Voltage > or = .................... 280V
Neon lit when Voltage > or = .................... 415V
Accuracy on both voltage display.............. ±20% of Rdg
Voltage Detector with LED
Led Lit when Voltage between Probes >.. 25V ±20V
Voltage Detector with Buzzer
Buzzer Sounds when Voltage on tips >.... 25V ±20V
MECHANICAL
Total Length.............................................. 1000m/m
Fiber Glass Length................................... 795 m/m
Weight ...................................................... 700g
ENVIRONMENTAL
Operating temperature Range................. 1°C to +55°C
Storage Temperature............................... -20°C to +70°C
MATERIAL
Poles........................................................ Fiber Glass
Handles.................................................... Rubber
Body......................................................... ABS
FUSES REPLACEMENT
Make sure the Double Check is not connected to anything
and that you are safe from any voltage carrying
conductors.
Unscrew the fuse cover
and remove the fuse from
inside it's holder. Check and
replace the faulty fuse with
the same type.
Place the new fuse in
it's holder and screw
the fuse cover back
into place correctly.
CLEANING
Clean the
instrument case with a cleaner and wipe with dry cloth.
CHANGING TIPS
Tips can be changed using 8mm thread type of
our manufacture only. Unscrew by turning the tip
Anti-clockwise. Replace with the new tip, then
screw the new tip clockwise. Do not over-tight.
TAKING CARE OF YOUR DOUBLE CHECK
Storage:
Always store your double check in its carrying case to
protect it against external physical damage. Take great
care of it by making sure it does not get ill-treated.
Verify it's proper working:
Before and after use, check that it is working properly.
Use a slightly damped cloth to clean the fiberglass. Do not
use chemicals other than the ones supplied.
-14- -15-

SPECIFICATIONS
GENERAL
Maximum Rating between Poles............... 450V
Category.................................................... IV
FUSES
Type........................................................... HBC/HRC
Rate of Rupture......................................... Slow Blow
Current Rating........................................... 500mA
Voltage Rating........................................... 600V
Quantity..................................................... 2
VOLTMETER The Neon Voltage Scale Indication
Neon lit when Voltage > or = .................... 110V
Neon lit when Voltage > or = .................... 220V
Neon lit when Voltage > or = .................... 280V
Neon lit when Voltage > or = .................... 415V
Accuracy on both voltage display.............. ±20% of Rdg
Voltage Detector with LED
Led Lit when Voltage between Probes >.. 25V ±20V
Voltage Detector with Buzzer
Buzzer Sounds when Voltage on tips >.... 25V ±20V
MECHANICAL
Total Length.............................................. 1000m/m
Fiber Glass Length................................... 795 m/m
Weight ...................................................... 700g
ENVIRONMENTAL
Operating temperature Range................. 1°C to +55°C
Storage Temperature............................... -20°C to +70°C
MATERIAL
Poles........................................................ Fiber Glass
Handles.................................................... Rubber
Body......................................................... ABS
FUSES REPLACEMENT
Make sure the Double Check is not connected to anything
and that you are safe from any voltage carrying
conductors.
Unscrew the fuse cover
and remove the fuse from
inside it's holder. Check and
replace the faulty fuse with
the same type.
Place the new fuse in
it's holder and screw
the fuse cover back
into place correctly.
CLEANING
Clean the
instrument case with a cleaner and wipe with dry cloth.
CHANGING TIPS
Tips can be changed using 8mm thread type of
our manufacture only. Unscrew by turning the tip
Anti-clockwise. Replace with the new tip, then
screw the new tip clockwise. Do not over-tight.
TAKING CARE OF YOUR DOUBLE CHECK
Storage:
Always store your double check in its carrying case to
protect it against external physical damage. Take great
care of it by making sure it does not get ill-treated.
Verify it's proper working:
Before and after use, check that it is working properly.
Use a slightly damped cloth to clean the fiberglass. Do not
use chemicals other than the ones supplied.
-14- -15-

LIMITED WARRANTY
We warrant the product manufactured by us to be free
from defective material or factory workmanship and agree
to repair or replace this product which, under normal use
and service, disclose the defect to be the fault of our
manufacturing, with no charge for parts and service. If we
are unable to repair or replace this product, we will make
a full refund of the purchase price.
Consult the user's manual for proper instruction regarding
use of this instrument.
Our obligation under this warranty is limited to repairing,
replacing or making refund of this test equipment which
proves to be defective within twenty four months from the
date of original purchase.
This warranty does not apply to any of our products which
have been repaired or altered by unauthorized persons in
any way so as, in our sole judgement, to injure their
stability or reliability, or which have been subject to
misuse, abuse, misapplication, negligence or accident or
which have had the serial numbers altered, defaced or
removed.
Accessories, not of our manufacture used with this
product, are not covered by this warranty.
All warranties implied by law are hereby limited to a period
of twenty four months, and the provisions of the warranty
are expressly in lieu of any other warranties expressed or
implied.
OPTIONS
1.Piercing Cone Tip Type 1.
2.Piercing Cone Tip Type 2.
3.Hook Type 1.
4.Hook Type 2.
5.Carrying Pouch.
6.Spares Fuses.
7.Test Certificate.
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LIMITED WARRANTY
We warrant the product manufactured by us to be free
from defective material or factory workmanship and agree
to repair or replace this product which, under normal use
and service, disclose the defect to be the fault of our
manufacturing, with no charge for parts and service. If we
are unable to repair or replace this product, we will make
a full refund of the purchase price.
Consult the user's manual for proper instruction regarding
use of this instrument.
Our obligation under this warranty is limited to repairing,
replacing or making refund of this test equipment which
proves to be defective within twenty four months from the
date of original purchase.
This warranty does not apply to any of our products which
have been repaired or altered by unauthorized persons in
any way so as, in our sole judgement, to injure their
stability or reliability, or which have been subject to
misuse, abuse, misapplication, negligence or accident or
which have had the serial numbers altered, defaced or
removed.
Accessories, not of our manufacture used with this
product, are not covered by this warranty.
All warranties implied by law are hereby limited to a period
of twenty four months, and the provisions of the warranty
are expressly in lieu of any other warranties expressed or
implied.
OPTIONS
1.Piercing Cone Tip Type 1.
2.Piercing Cone Tip Type 2.
3.Hook Type 1.
4.Hook Type 2.
5.Carrying Pouch.
6.Spares Fuses.
7.Test Certificate.
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The purchaser agrees to assume all liability for any
damages or bodily injury which may result from the use or
misuse of the product by the purchaser, or it's user, his
employees, or others, and the remedies provided for in
this warranty are expressly in lieu of any other liability we
may have including incidental or consequential damages.
We reserve the right to discontinue models at any time, or
change specification, price or design, without notice and
without incurring any obligation.
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