Vallon VMH3CS Manuale utente

Vallon GmbH • Arbachtalstr. 10 •72800 Eningen • Germany
Phone: +49-7121-98550 • Fax: +49-7121-9855-100 •
Searching with Excellence
METAL DETECTOR
VMH3CS
Software Version 1.14_click
OPERATION MANUAL
Issue 07/2007

1
Metal Detector VMH3CS – Operation Manual
© 2007 Vallon GmbH, D-72800 Eningen/Germany
Notes concerning the Electromagnetic Compatibility (CE)
This detector corresponds to class B according to EC-guideline 89/336/EWG.
If the detector is used in accordance with the regulations, changes of the
electromagnetic surroundings are measured and indicated.
Therefore, the detector cannot suppress all noise frequencies. In worst case other
electronic instruments may release false alarms due to their radiated emissions.
A further functional disorder – not recognizable by the operator – does not occur.

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Metal Detector VMH3CS – Operation Manual
© 2007 Vallon GmbH, D-72800 Eningen/Germany

3
Metal Detector VMH3CS – Operation Manual
© 2007 Vallon GmbH, D-72800 Eningen/Germany
CONTENTS
1. GENERAL APPLICATION.................................................................................. 5
2. DESIGN FEATURES .......................................................................................... 7
2.1 Detector Electronics................................................................................................................. 9
2.2 Search Head with Telescopic Pole....................................................................................... 11
2.3 Headset with textile ribbon (optional accessory) ............................................................... 12
3. OPERATION..................................................................................................... 13
3.1 Individual Alarm Configurations........................................................................................... 15
3.2 Switching ON and OFF and Program Settings.................................................................... 16
3.2.1 Confidence Click............................................................................................................. 16
3.3 Fine Adaptation to Mineralized Soil...................................................................................... 17
3.3.1 Automatic Fine Adaptation to Mineralized Soil............................................................... 17
3.3.2 Manual Fine Adaptation to Mineralized Soil................................................................... 18
3.3.3 Important Notes.............................................................................................................. 19
3.4 Setting the Detection Sensitivity .......................................................................................... 20
3.5 Operational Readiness, Sensitivity Test Piece ................................................................... 21
3.6 Checking the Battery Capacity Level................................................................................... 22
4. AUDIO ALARM SIGNALS DURING OPERATION........................................... 23
4.1 Full Battery Charge Signal (Simulation)............................................................................... 23
4.2 Battery Charge Signal with 50 % of Capacity (Simulation)................................................ 23
4.3 Low Battery Charge Signal (Simulation).............................................................................. 24
4.4 Detector "Non Functioning" Signal (Simulation)................................................................ 24
4.5 Typical Target Detection Signals.......................................................................................... 25
5. VISUAL SIGNALS ............................................................................................ 28
5.1 Visual Signals during Detection ........................................................................................... 28
5.2 Visual Error Messages, Cause and Remedy ....................................................................... 30
6. VIBRATION SIGNALS DURING THE DETECTION WORK............................. 31
7. PRACTICAL DETECTION WORK.................................................................... 32
7.1 Pinpointing.............................................................................................................................. 32

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Metal Detector VMH3CS – Operation Manual
© 2007 Vallon GmbH, D-72800 Eningen/Germany
7.2 Detection in Non-Overgrown Areas with the Oval Search Head....................................... 33
7.3 Detection in Overgrown Areas with the Oval Search Head ............................................... 33
7.4 Detection in Waters................................................................................................................ 34
8. Simultaneous operation of two DETECTORS in close vicinity ................... 35
9. DATA input / DATA OUTPUT.......................................................................... 36
9.1 Computer aided UXO detection ............................................................................................ 36
9.2 Firmware Upgrade.................................................................................................................. 36
APPENDIX A – LIST OF AUDIO SIGNALS 37
APPENDIX B – SHORT INSTRUCTIONS 38
APPENDIX C – TECHNICAL DATA 40
APPENDIX D – DIMENSIONAL DRAWINGS 42
APPENDIX E – SPARE PARTS 43
APPENDIX F – UXO SEARCH HEAD (OPTIONAL ACCESSORY) 47
APPENDIX G – STICK PROBE (OPTIONAL ACCESSORY) 55

5
Metal Detector VMH3CS – Operation Manual
© 2007 Vallon GmbH, D-72800 Eningen/Germany
1. GENERAL APPLICATION
The use of the Metal Detector in accordance with the regulations is the
detection of metal parts in mines or in ammunition or explosive ordnance in
the ground and in shallow water. The search head must be moved above the
ground in such a way that obstacles like grass, stones, branches or explosive
ordnances are not touched.
ATTENTION: Danger of Explosion.
Do not use the metal detector for scanning persons.
The Metal Detector is consisting of two parts: control unit with telescopic pole
and a pluggable oval search head. As an optional accessory a large UXO
search head or a stick probe can be connected.
The oval search head is recommended for the detection of metal mines and
plastic mines with minimum metal content as well as other small metal parts.
The large UXO search head is recommended for the detection of shells,
bombs and other ammunition in larger depths.
The stick probe is recommended for detection even in hollow spaces, bushes
and trusses of hay.
The detector has been designed for the highly accurate detection of all types
of ferrous and non-ferrous metals. Ease of operation and a rigid and compact
mechanical design ensure very reliable operation for professional ordnance
clearing in battlefield operations and rigorous military training programs.
Along with its digital signal processor the metal detector uses the function
principle of an advanced pulse-field specially improved by Vallon. It can work
also in strongly mineralized soils, like laterite, magnetite, magmatite as well as
in shallow water (salt and fresh water) and under the electromagnetic
influence of main power lines without affecting the detector’s sensitivity too
much.
The metal detector ready for service, including accessories, is delivered in a
rigid carrying bag.

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Metal Detector VMH3CS – Operation Manual
© 2007 Vallon GmbH, D-72800 Eningen/Germany
WARNING
The Metal Detector detects metals only. Each audio signal may indicate a
mine with metal content or an UXO. Mines containing only small metal parts
with very special metallic alloy may eventually not be detected. Mines without
any metal part will not be detected.
Before starting detection work make the performance test as described in
chapter 3.5.
WARNING
DO NOT USE THE METAL DETECTOR FOR LOCATING MAGNETICALLY
INFLUENCED MUNITIONS.
Some of the known mines of NATO-countries will not be activated, provided
the detector is equipped with non-magnetic batteries. For detection of mines of
other manufacturers it is recommended to test in advance whether they are
detectable before the operator starts the detection work.

7
Metal Detector VMH3CS – Operation Manual
© 2007 Vallon GmbH, D-72800 Eningen/Germany
2. DESIGN FEATURES
The Metal Detector VMH3CS, packed ready for service, consists of the
following main components:
(1) Detector electronics with integrated arm-rest, battery compartment,
ON/OFF switch for two different ground conditions, non-magnetic
loudspeaker and vibrator. Integrated two-piece telescopic carrying bar
with plug-in connection for search head
Hand grip with LED-bargraph (14 elements), 4 rigid push buttons for
sensitivity control, volume control, ground compensation and pinpoint
function
(2) Carrying bar with watertight oval search head and plug-in connection to
the control unit
(3) Test piece (non-magnetic)
(4) 3 EA batteries (single-cell batteries IEC R 20 à 1,5 V)
(5) Operation manual
(6) Field manual
(7) Field backpack
Fig. 2-1 Field Backpack
7
6
5
4 1
3
2

8
Metal Detector VMH3CS – Operation Manual
© 2007 Vallon GmbH, D-72800 Eningen/Germany
Optional Accessories: (available on request)
(8) Non-magnetic, watertight headset
(please refer to chapter 2.3)
(9) Rechargeable batteries, 3 ea (D-size),
(not shown)
(10) Multisource charging set (not shown)
(11) Hard case
(12) UXO search head with carrying bag
(13) Stick Probe
Fig. 2-2 Optional Accessories
12
13
11
11
11

9
Metal Detector VMH3CS – Operation Manual
© 2007 Vallon GmbH, D-72800 Eningen/Germany
2.1 Detector Electronics
1 2 3 4
5
6 7 8
Fig. 2-3 Detector Electronics
(1) Hand grip (6) Mode selector
(2) Indication and operation elements (7) Battery compartment
(3) Loudspeaker (8)Lockof
(4) Arm-rest battery compartment
(5) Connector
The detector electronics (Fig. 2-3) contains a battery compartment (Fig. 2-3/7)
for 3 batteries (alkaline mono cells, or Ni-MH-accumulators), which can be
replaced easily.
The distance between arm-rest (Fig. 2-3/4) and hand grip (Fig. 2-3/1) can
continuously be adjusted according to the operator’s height.
The detector is switched ON and OFF by means of the mode selector (Fig. 2-
3/6) on the front panel. For optimal detection two different soil programs can
be selected.
Indice
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