Clarke MD1500 User manual

USER INSTRUCTIONS
ORIGINAL INSTRUCTIONS DL0923 - REV 1
PROFESSIONAL METAL DETECTOR
MODEL NO: MD1500
PART NO: 4501220

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INTRODUCTION
Thank you for purchasing this CLARKE metal detector.
Before attempting to use this product, please read this manual thoroughly and
follow the instructions carefully. In doing so you will ensure the safety of yourself
and that of others around you, and you can look forward to your purchase
giving you long and satisfactory service.
CONTENTS:
• Control Panel,
•ArmBrace,
•SearchCoil
SPECIFICATIONS
• Model Number:.............................................. MD1500
• Power Supply:................................................ 8 x 1.5 Volt AA Batteries
• Operation Modes:......................................... All Metal & Discrimination
• Sensitivity, Max Depth:.................................. 200 mm
• Low Battery Indication:................................. LED
CODE OF ETHICS
When metal detecting, here are some basic rules that you should follow.
• Always get consent of the landowner before you search any site.
• Respect the rights and property of others and DO NOT trespass.
• Observe all national and local laws when you use the metal detector.
•DO NOT destroy historical and archaeological treasures or sites.
• Fill any holes that you have made and leave the land as you found it.
• Only use the metal detector where safe to do so.
• Dispose of any rubbish that you find in a safe area, do not leave it for
somebody else to find.
• Always follow procedures relating to finds as laid down in the Treasure Act
1996. See page 11 of this manual for information regarding reporting finds.

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PREPARATION
ASSEMBLING THE METAL DETECTOR
1. Remove the nut and bolt from the
search coil.
2. Position the lower stem between
the posts on the search coil and
replace the nut and bolt as shown
in Fig 1.
3. Adjust the search coil so that it is
parallel to the ground and tighten
the nut & bolt to lock into position.
4. Insert the lower stem into the
upper stem See Fig 2. Press the
two spring clips on the side of the
lower stem, which will locate into
the holes on the upper shaft.
5. Adjust the length of the shaft.
• When your arm is relaxed and the
coil is just above the ground.
6. Wind the search coil lead around
the stem and insert the connector
into the jack on the control
housing as shown in Fig 3.
BATTERIES
• Only use alkaline batteries.
•DO NOT mix old & new batteries.
1. Remove the battery
compartment cover from the rear
of the control housing.
2. Insert 8 AA batteries into the battery compartment. Make sure that you
follow the polarity symbols inside the compartment.
3. Replace the battery compartment cover.
• Used batteries must be disposed of according to local regulations.
•DO NOT burn or bury used batteries.

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THE CONTROL PANEL
No NAME DESCRIPTION No NAME DESCRIPTION
1DISC/
TONE
This setting is used to
make the metal
detector reject lower
quality targets.
6 SENS Used to adjust the
sensitivity
2GND
BAL
Corrects for the
metallic minerals that
normally occur in the
ground.
7 THRESHOLD Also used as a power
switch.
The threshold should
be tuned to the point
where a faint tone
can be heard.
3 VOL Used to adjust the
volume level.
8 LOW BAT Low battery indicator,
replace the batteries
when this is lit.
4 TRACE Used to help pinpoint
a target.
9MODE
SELECTOR
Discrimination (DISC) /
All Metal (TONE).
5 PHONE Headphones socket. 10 METER In ALL METAL mode,
the meter will show
the signal strength. In
DISC mode the meter
will show the type of
metal being detected

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OPERATION
HOW TO TURN THE DETECTOR ON OR OFF
• Rotate the THRESHOLD control clockwise to turn the Metal Detector ON.
• Rotate the THRESHOLD control fully to the left to turn the Metal Detector
OFF.
DETECTION MODES
There are 3 ways to detect metal using this metal detector.
ALL METAL
This MODE detects every type of metal and must be used when the material
of the required object is not known.
DISCRIMINATION
This mode rejects some types of metal depending on the setting of the DISC/
TONE dial.
At setting '0' the detector detects almost all metal. As you increase the setting
more objects are rejected. On a high setting only the most conductive metals
are found.
NOTE: If the control is set too high, then modern coins are rejected.
TONE
The TONE mode discriminates between different types of metal with high or
low pitched tones.
SEARCH HINTS
• You must move the search coil from side to side in an arc approximately 15
cm wide.
• Do not swing the search coil like a pendulum, raising the sides. This will give
you false readings.
• Sweep the search coil at a slow even pace.

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USING THE METAL DETECTOR
ALL-METAL MODE
1. Set the DISC/TONE dial (1) to the ALL METAL position.
2. Set the SENS dial to the middle position.
3. Hold the search coil 1 metre above the ground.
4. Hold down the TRACE button and rotate the GND BAL to the area marked
'P'. Then release the TRACE button.
5. Hold the search coil 2-5 cm above the ground.
If the pointer swings to the right rotate the GND BAL to the left slightly, If the
pointer swings to the left rotate the GND BAL to the right.
Each time you adjust the GND BAL press the TRACE button once.
DISCRIMINATION MODE
1. Set the Mode Selector (9) to the DISC position.
2. Rotate the DISC/TONE dial (1) clockwise away from the ALL METAL position.
At setting '0' the detector will detect nearly all metal. As you increase the
setting more objects will be rejected. On a high setting only the most
conductive metals will be found.
TONE MODE
1. Set the Mode Selector (9) to the TONE position.
2. Rotate the DISC/TONE dial (1) clockwise away from the ALL METAL position.
At setting '0' the detector will respond to all metals with a high pitched tone.
On a high setting only the most conductive objects (such as silver) will respond
with a high pitched tone.
SENSITIVITY
SENS adjusts the sensitivity of your metal detector to metal objects.
If you turn this knob fully clockwise, it will be more sensitive to small objects and
detect metal deeper down. However, if there are a high concentration of
minerals in the ground it may give you false signals.
THRESHOLD (DISCRIMINATION MODE ONLY)
The threshold is the optimum point of tuning on a detector where a faint tone
can be heard. By setting the threshold to this point the metal detector will be
at its most sensitive.

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USING HEADPHONES
1. Insert your headphones into the headphone socket on the control housing.
Connecting stereo headphones automatically disconnects the loudspeaker.
Headphones give slightly more sensitivity as they reduce external noises which
can interfere with your ability to detect objects.
TROUBLESHOOTING
FALSE SIGNALS
• If you are getting false signals from electrical cables, try to lower the
sensitivity.
• The metal detector can give a false reading in areas which have a high
mineral content. In this case lower both the sensitivity and the threshold
and hold the search coil slightly higher than normal.
ENVIRONMENTAL PROTECTION
Do not dispose of this product with general household waste at the end of its
life. This product contains valuable raw materials and should be disposed of
appropriately at a recognized disposal facility.
CAUTION: SET THE VOLUME TO THE LOWEST LEVEL BEFORE PUTTING ON
THE HEADPHONES. THEN ADJUST THE VOLUME TO A COMFORTABLE
LEVEL.
CAUTION: CAUTION: DO NOT WEAR HEADPHONES WHEN OPERATING
NEAR ROADS OR TRAFFIC.

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EXPLODED PARTS DIAGRAM

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PARTS LIST
GUARANTEE
This product is guaranteed against faulty manufacture for a period of 12
months from the date of purchase. Please keep your receipt which will be
required as proof of purchase.
This guarantee is invalid if the product is found to have been abused or
tampered with in any way, or not used for the purpose for which it was
intended.
Faulty goods should be returned to their place of purchase, no product can
be returned to us without prior permission. This guarantee does not effect your
statutory rights.
NO DESCRIPTION NO DESCRIPTION
1 Search Coil 19 Washer
2 Screw ST2.6x6-F 20 End Shaft
3 Meter Cover Assembly 21 Knob
4 Meter 22 Lock Nut
5 Screw ST2.6x6-F 23 Slide Board
6 Meter Panel Assembly 24 Shaft Cover
7 Printed Circuit Board 25 Spring
8 Housing 26 Spring
9 Printed Circuit Board 27 Spring
10 Printed Circuit Board 28 Battery Cover
11 Printed Circuit Board 29 Battery Cover
12 Printed Circuit Board 30 Spring Clip
13 Printed Circuit Board 31 Screw M4x25
14 Control Button 32 Grip Lining
15 Control Button 33 Screw M3x25
16 Arm Support 34 Handle Top
17 Washer 35 Main Arm
18 Knob Connector

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DECLARATION OF CONFORMITY

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REPORTING OF TREASURE & HISTORICAL ITEMS
You must report treasure to the local coroner within either:
• 14 days of first finding it.
• 14 days of realising an item might be treasure, even if you’ve had it for
longer.
You only need to report items officially defined as treasure. This definition can be
found on the following website.
• www.finds.org.uk/treasure/advice/summary
If the items are not treasure but still of cultural or historical interest you can report
them to the following.
Each area of the UK has different rules and schemes, as follows:
ENGLAND
• Portable Antiquities Scheme: www.finds.org.uk
WALES
• Cymru PAS Scheme: www.museum.wales/portable-antiquities-scheme-in-
wales/
SCOTLAND
• Treasure Trove Unit: www.treasuretrovescotland.co.uk
NORTHERN IRELAND
• Historic Environment: www.communities-ni.gov.uk/articles/advice-finders-
treasure-northern-ireland
For more information see www.gov.uk/treasure#items of culture or historical
interest