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Vallon VMH3CS Operation Manual

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METAL DETECTOR
VMH3CS
OPERATION MANUAL
Issue EN 07/2018
Version:
1.21.
Vallon GmbH • Arbachtalstr. 10 • 72800 Eningen • Germany
Tel.: + 49 7121 9855 0 • Fax: + 49 7121 9855 100 •
info@vallon.de
•
www.vallon.de

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Summary of Contents for Vallon VMH3CS

  • Page 1 METAL DETECTOR VMH3CS OPERATION MANUAL Issue EN 07/2018 Version: 1.21. Vallon GmbH • Arbachtalstr. 10 • 72800 Eningen • Germany Tel.: + 49 7121 9855 0 • Fax: + 49 7121 9855 100 • info@vallon.de • www.vallon.de...

  • Page 2: Table Of Contents

    ....... . . 1/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 3 ........2/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 4: Prior To Starting

    Please do not hesitate to contact us if you have any further questions. All details as stated in this document comply with the technical standard that is applicable at the date of printing. It is subject to technical modifications and error. 3/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 5: Symbol Explanation

    CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE NOTICE is used to address practices not related to physical injury. Information Useful Information 4/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 6: Safety Instructions

    3 Safety instructions 3.1 Intended use The metal detector VMH3CS is used for the detection of metal objects in the ground or in shallow water, e.g. ordnances (mines, munition, weapons . . .), coins, metal jewelry etc. Under normal conditions of use, the VMH3CS is harmless to humans. Only persons carrying a cardiac pacemaker or similar medical equipment in or on their body must avoid direct contact of the search coil.

  • Page 7: Warnings

    20 cm between the metal detector electronics and the mine is being observed). CAUTION Emission of electromagnetic waves It is not allowed to use this device to examine persons. 6/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 8: Description

    4 Description 4.1 General The metal detector VMH3CS is consisting of electronic unit with telescopic pole and an exchangeable search coil. The standard oval search coil can be unscrewed and replace by the optional available round search coil 30 cm, round search coil 60 cm or stick probe. The oval search coil is recommended for the detection of shallow buried small metal parts metal (such as metal mines and plastic mines with minimum metal content).

  • Page 9: Operating Principle

    Because of that the search coil must be continuously moved while searching. DANGER Danger of explosion due to overlooked objects. While searching, the search coil must be continuously moved at adequate speed. 8/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 10: Scope Of Delivery

    4.3 Scope of delivery The scope of delivery of the VMH3CS contains the following components (see fig. 4.3.1): Pos. Name Quantity Electronic unit with integrated arm-rest, handle with control unit Search head oval Test piece metal detector Battery Akaline LR20 (D/Mono)
  • Page 11 Search head 60 cm, with carrying bag Stick probe Cover for search head oval Non-magnetic, watertight headphones Recheargeable NiMH battery HR20 (D/Mono) Vallon charger (for charging NiMH batteries inside of the detector) Fig. 4.3.2: Optional accessories 10/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 12: Structure

    2. Control panel 3. Telescopic pole 4. Search coil Fig. 4.4.1: Components VMH3CS: (1) Electronic unit; (2) Control unit; (3) Telescopic pole with clamps; (4) Plug connection with screw fastening; (5) Search coil 11/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 13: Control Panel With Control Elements And Indicators

    Designation Function LED display Optical display Reducing the value Button MINUS Compensating the metal detector Button C Increasing the value Button PLUS Activating pinpoint function Button PINPOINT Table 4.3: Control panel 12/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 14: Headset (Option)

    4.4.2 Headset (option) The headset contains a non-magnetic piezo speaker and can also be worn under a safety helmet. Fig. 4.4.3: Headset 13/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 15: Transport Case (Option)

    The seal in the cover must always be kept clean to ensure the water tightness of the hard case. In the event that the seal is cracked or damaged in any other way, it must be replaced. 14/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 16: Putting Into Operation

    5 Putting into operation 5.1 Connecting the power supply For using the metal detector VMH3CS three batteries size D/Mono are needed (e.g. alkaline batteries type LR20 or rechargeable NiMH batteries type HR20), refer to fig. 5.1.1. Please make sure to use only batteries of the same type and the same charging status.

  • Page 17: Mounting Search Head And Adjusting Telescopic Pole

    Fig. 5.2.1: Adjusting the search head break: (1) brake screw; (2) screwdriver 2. The detector VMH3CS allows two positions of the search head: (1) position for detection work in standing; (2) position for detection work in proning or kneeling.

  • Page 18: Adjusting Armrest

    4. To adjust the working length open the clamp ring of the telescope (5) half a turn, pull out the telescopic rod to the desired length and close the clamp ring hand-tight. 5.3 Adjusting armrest 1. Move the arm support into the desired position. 17/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 19: Connecting External Devices

    At the control unit of the device you can find the cable interface, see fig. 5.4.1. Here you can connect the headphone (option ), the Vallon battery charger (option) and third party devices (e.g. PC for firmware update or data evaluation). The headphones can be used as an alternative to the speaker in the control unit.

  • Page 20: Operation

    / diluted metal in sand or soil. mineral Further settings are necessary. Metal detector is switched ON. Setting the volume of the audio signal with buttons PLUS und MINUS. Table 6.1: Rotary switch positions 19/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 21 Find more information on operation modes normal and mineral and on soil compensation, if necessary, in section Soil compensation on page 25. 20/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 22: Alarm Options

    MINUS and C Vibration and audible LED display and vibration MINUS and PLUS LED display and audible C and PLUS LED display, audible and vibration MINUS, C and PLUS Table 6.2: Alarm options 21/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 23: Battery Test

    (audio signal and blinking of LED 13), refer to table 6.4. Detection mode Signal Mode Normal: single short pulse signal every 5 seconds. Mode Mineral: double short pulse signal every 5 seconds. Table 6.4: Confidence click 22/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 24: Testing The Metal Detector

    5. Hold the test piece vertically approx. 50 cm (cord pointing upwards) above the search coil. Move towards the centre of the search coil at approx. 1 m/s until the test piece is positioned on the centre of the search coil (Vallon marking), refer to fig. 6.1.2 page 22.

  • Page 25: Settings And Functions

    • Every change of the settings will be deleted when switching the device off and on, as the settings will go back to the default settings. Excep- tions: alarm configuration, soil compensation and channel selection. Fig. 6.2.1: Control panel 24/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 26: Volume

    The selected value of the sensitivity is kept during the operation until it is changed by operating buttons MINUS and PLUS or until the metal detector is turned off. After each turning ON you have to adjust the desired detection sensitivity again. 25/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 27: Soil Compensation

    Recommendation: Create a test area in the soil in which you have to carry out the detection. The test area should be free of metal parts and should contain all expected types of mines. 26/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 28 Meaning: The soil compensation was not possible, probably because of metal ob- jects in the ground. Operation will resume with previously stored soil compensation setting. 8. Release button C to go back to detection mode. 27/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 29 The soil compensation can be adjusted with the buttons PLUS and MINUS until no alarm is emitted anymore when moving the search coil up. 6. Release button C. A short beep confirms the storage of the setting. 28/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 30 Example 2: LED 12 is lit (extended soil value), LED 10 is lit and LED 1 is flashing. Decade: 100 Unit value: 1 Mineral content: 101 Table 6.5: Examples soil values 29/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 31: Working Channel

    6.2.4 Working channel Using several Vallon detectors with low distance between each other(<20m) can cause interferences. The channel selection is used to avoid this effect. In this case it is recommended to adjust the working channels manually, see sections Working channel selection...
  • Page 32 Description Display Example 1: Working channel A1 (LED 1 and LED 11 are lit) Example 2: Working channel B4 (LED 4 and LED 12 are lit) Table 6.7: Examples working channel 31/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 33 LED bargraph. When the channel assignment is completed, a high- pitched continuous tone is emitted. 3. Set the rotary switch to position normal or mineral. 4. Conduct another test and, if necessary, adjust the frequency again. 32/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 34: Filter

    1 m/s Table 6.8: Filter Information With filter settings 3 – 6 the corresponding LED 14 – 11 are lit in detection mode in order to show the filter setting. 33/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 35: Detector Compensation

    This can be aborted by carrying out a detector compensation. • Working with the pinpoint function may not be advantageous in heavily mineralized soil and/or very uneven ground. 34/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 36: Operation Modes Land And Surf

    3. Switch on the detector by turning the rotary switch to position normal or mineral. 4. Release buttons one second after switching on. The indications for operation mode surf are switched off now. 35/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 37: Signal Evaluation

    Large objects close to the surface may cause a signal saturation. To avoid this effect, the detector automatically reduces the sensibility. A second acoustic signal is emitted at low level, which causes a further signal maximum above the object, see fig. 6.3.3. 36/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 38 Fig. 6.3.3: Detection signal for large objects near the surface: (A) area first acoustic signal; (B) area second acoustic signal 37/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 39: Switching Off The Device

    3. If you want to transport the device after switching off: Store the device in the intended Container. NOTICE Improper storage and transport may cause device damages. Always store and transport the device in the intended container. 38/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 40: Charging The Batteries

    Charging batteries inside of the the detector To be able to recharge NiCd or NiMH batteries directly in the device, the charger Vallon NT-VMD is required (optionally available), see fig. 6.5.1. Connect the charger to the cable interface of the device (see section...

  • Page 41: Troubleshooting

    Electronics is defective ment Contact the service depart- Search coil cable is broken ment Short circuit in search coil Contact the service depart- circuit ment Contact the service depart- AD Converter Overflow ment 40/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 42: Maintenance And Storage

    Remove standard / rechargeable batteries from the device prior to storage / transport. NOTICE Deep discharge (e.g. due to long-time storage) may cause damage to rechargeable batteries. Avoid deep discharge by charging the batteries frequently. 41/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 43 Very low or high temperatures may cause damage to standard and rechargeable batteries or reduce their performance. Comply with temperatures for use and storage, see chapter Technical data on page 42. 42/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 44: Technical Data

    Tolerances: lengths ±3%; weights ±10% Power supply Property Value 3 x LR20 alkaline batterie Standard batteries (D/Mono) Rechargeable batteries (optional) 3 x HR20 NiMH (D/Mono) Battery charger (optional) On-board 12 V or mains 230 V 43/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 45 Detection speed (dyn. mode) 0.2 – 1.5 m/s Detection speed (pinpoint mode) 0 – 1.5 m/s Min. distance between two metal detectors According to MIL-STD-810F 501.4-II, 502.4-I, 502.4-II, 503.4, 506.4-III, 514.5 C1 44/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 46 Fig. 9.0.1: Dimensions VMH3CS with oval search head (tolerance ±3%) 45/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 47: Legal Notices

    • Only open the device in accordance with the description in the operation manual or with the written permission of Vallon GmbH. Only remove device parts in accordance with the description in the operation manual or with the written permission of Vallon GmbH. Non-compliance will cause the loss of warranty claims.

  • Page 48: Disposal Of Used Batteries

    You may also return standard and rechargeable batteries free of charge or send them with sufficient postage to our company at the address below: Vallon GmbH • Arbachtalstr. 10 • 72800 Eningen • Germany Standard and rechargeable batteries containing harmful substances are marked with a crossed out dustbin symbol similar to the one in the following figure, as well as by the...

  • Page 49: Ec Declaration Of Conformity

    EN 61000-6-1:2007 EN 61000-6-3:2007 EN 61000-6-3:2007/A1:2011 EN 61000-6-3:2007/A1:2011/AC:2012 Class B This certificate is subject to the observance of the operation manual. Eningen, Wednesday 14 August, 2019 Gerhard Vallon Managing Director 48/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 50: A Search Coil 60 Cm (Option)

    • If you replace the search coil by another one, repeat the soil compensation procedure, even if detecting in the same soil. 49/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 51: Detection With The Search Coil 60 Cm

    1.1 kg Dimensions Transport case 66 x 70 x 11 cm Working weight (with 3 batteries) 2.9 kg Transport weight detector in transport case 6.7 kg Tolerances: lengths ±3%; weights ±10% 50/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...
  • Page 52 Fig. A.3.1: Dimensions VMH3CS with search coil 60 cm (tolerance ±3%) 51/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 53: B Stick Probe (Option)

    • If you replace the search head by another one (for example from oval search head to search head 60 cm), repeat the soil compensation procedure, even if the soil is the same. 52/53 VMH3CS OPERATION MANUAL (07/2018) • © Vallon GmbH...

  • Page 54: Technical Data

    B.2 Technical Data Technical data metal detector VMH3CS with stick probe which are different from data in chapter Technical data on page 42. Property Value* Length Telescopic pole with stick probe 93.5 bis 127.8 cm Length stick probe 44.5 cm...
  • Page 55 Searching with Excellence Vallon GmbH • Arbachtalstr. 10 • 72800 Eningen • Germany Tel.: + 49 7121 9855 0 • Fax: + 49 7121 9855 100 • info@vallon.de www.vallon.de...