Clarke MD1500 Instruction Manual

OPERATION & MAINTENANCE
INSTRUCTIONS
05/08
PROFESSIONAL METAL DETECTOR
MODEL NO: MD1500
PART NO: 4501220

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INTRODUCTION
Thank you for purchasing this CLARKE Professional Metal Detector.
Before you try to use this product, read this manual and follow the instructions
carefully. In doing so you will ensure your safety and the safety of others
around you.You can also look forward to a purchase that gives you long and
satisfactory service.
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.
IN THE BOX
• 1 x Instruction Manual
• 1 x Control Unit
• 1 x Arm Brace
• 1 x Search Coil
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

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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.
• Observe all national and local laws when you use the metal
detector.
• Do not destroy historical and archaeological treasures. If you do not
know what you have found, contact your local museum or historical
society.
• 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.

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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 and bolt to
lock into position.
4. Insert the lower stem into the upper stem
See Figure 2. Press the two spring clips on
the side of the lower stem, the spring clips
will locate into the holes on the upper
shaft.
5. Adjust the length of the shaft.
• When your arm is relaxed and by your
side the search coil should be 20-50 mm
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 and 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.
Fig 1
Fig 2
Fig 3

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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 pin-
point 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.
1
2
345
6
7
8
9
10

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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 meter 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.
CAUTION: Set the volume to the lowest level before putting on the
headphones. Then adjust the volume to a comfortable level.
CAUTION: Do not wear headphones when operating near roads or
traffic.

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EXPLODED PARTS DIAGRAM

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PARTS LIST
NO DESCRIPTION Part No NO DESCRIPTION Part No
1 Search Coil TXMD150001 19 Washer TXMD150019
2 Screw ST2.6X6-F TXMD150002 20 End Shaft TXMD150020
3 Meter Cover Assembly TXMD150003 21 Knob TXMD150021
4 Meter TXMD150004 22 Lock Nut TXMD150022
5 Screw ST2.6X6-F TXMD150005 23 Slide Board TXMD150023
6 Meter Panel Assembly TXMD150006 24 Shaft Cover TXMD150024
7 PCB TXMD150007 25 Spring TXMD150025
8 Cabinet TXMD150008 26 Spring TXMD150026
9 PCB TXMD150009 27 Spring TXMD150027
10 PCB TXMD150010 28 Battery Cover TXMD150028
11 PCB TXMD150011 29 Battery Cover TXMD150029
12 PCB TXMD150012 30 Spring Clip TXMD150030
13 PCB TXMD150013 31 Screw M4X25 TXMD150031
14 Control Button TXMD150014 32 Grip Lining TXMD150032
15 Control Button TXMD150015 33 Screw M3X25 TXMD150033
16 Arm Support TXMD150016 34 Handle Top TXMD150034
17 Washer TXMD150017 35 Main Arm TXMD150035
18 Knob Connector TXMD150018

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PARTS AND SERVICING
For Parts & Servicing, please contact your nearest dealer, or
CLARKE International, on one of the following numbers.
PARTS & SERVICE TEL: [phone]
PARTS & SERVICE FAX: [phone]
or e-mail as follows:
PARTS: [email protected]
SERVICE: [email protected]