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Metal Mine Detector Gmbh.

VMX3

Two-piece Metal Detector

Large search head (60 cm diam.) for ferrous and non-ferrous submunition and UXO's near surface.

It is equipped with the highly effective automatic ground compensation and especially recommended if the use of magnetometers is limited by mineralized soils.

	data output for computer-aided data survey via RS 232
	handheld unit 1.9 kg only
	power supply: 4 ea. D-size batteries
	metal alarm via audio signal

NATO-STOCK-No. 6665-12-361-6659

VMXC1

UXO Detector

The Vallon VMXC1 detector is based on the well-known mine detector VMH3CS (see separate entry). Larger search heads and a special UXO firmware, which is custom designed for different applications, offer a reliable and specific detection of ordnance, submunition and metal cased mines with less false alarms by other metallic waste.

With the highly effective automatic ground compensation, the VMXC1 is also recommended if the use of magnetometers is limited by mineralized soils.

	Ultra high detection range
	Highly effective automatic ground balance
	Metal alarm: audio, visual and vibration
	Length continuously adjustable
	Input for firmware upgrade
	Output for data acquisition
	Power supply: 3 ea. 1.5 V standard batteries, D-size, standard or rechargeable (NiMH) Two options are offered:

VMXC1-1

	Slim search head
	small packing size
	handheld unit 2.5 kg only

Optional:

	large UXO search head 60 cm diam.
	soft carry bag for 60 cm search head
	operation weight with electronics 2.9 kg

VMXC1-3

	30 cm UXO search head
	small packing size
	handheld unit 2.7 kg

Optional:

	large UXO search head 60-cm diam.
	soft carry bag for 60 cm search head
	operation weight with electronics 2.9 kg

VX1

Universal Ferrous Locator for UXO Detection on Land, under Water and in Boreholes

	Compact, low weight, ergonomic
	For land, boreholes & water
	Detachable control unit for easy detection in boreholes
	No sensor adjustment required
	Digital probe technology
	Probe mechanically adjustable in height

Power supply:
4 x 1.5 V single cell batteries type D
or 4 x 1.2 V rechargeable batteries type D
or external power supply 6 Volt

VXC1

Compact Ferrous (UXO) Locator

extremely convenient use, even in brushwood,
no sensor adjustment required,
handheld unit 2.4 kg only,
power supply: 2 ea. D-size batteries, standard or rechargeable (NiMH)
indication via

	visual with ± 10 LEDs
	audio by inbuilt loudspeaker or headset

NATO-STOCK-No. 6665-12-377-4268

VET2

Ferrous locator for large UXO's in very large depths

Detection on land,
sensor removeable for underwater detection,
operation weight 9 kg,
power supply: rechargeable batteries,
indication via

	visual with ± 20 LEDs
	audio signal (loudspeaker)

extremely long sensor base (1.7 m)
no sensor adjustments required,
output for data acquisition via RS 232

VXB2

Ferrous Locator

Special Borehole Set

for ground survey in boreholes with data logger for convenient computer-aided data acquisition,
recommended for UXO detection in large depths and in surface contaminated soil.
Supplied with

	sensor, no adjustment necessary, with 25 cable
	Central unit VCU2
	data logger VFC2 (see separate entry)
	chargers and connecting cables

Power supply: rechargeable batteries

Options:

	Depth recording with SEPOS®-detector and SEPOS®-marks at sensor cable
	Data evaluation with software Vallon EVA2000®2.X (see separate entry)

The active pulse induction system offers great advantages in terms of UXO detection in mineralised soils in which magnetometers are giving too many false alarms. Likewise, for quick search of sub munitions and shells, the large search head, combined with a special UXO signal processing in the metal detector, offers high efficiency.

The large search head of a Vallon metal detector continuously emits electromagnetic pulses. Between each magnetic pulse is a short pause. During these pauses the electromagnetic reaction from metal objects, influenced by the search head, is detected by the detector.
The reaction time is depending on the size of the metallic objects and their distance to the search head. The receiver of the detectors processes this response and converts it to an alarm signal.
Search head sizes of 30 cm and 60 cm diameter are used, depending on surface conditions.

The magnetic field of the earth is homogeneous with regards to the field strength and the direction of the field strength. If a ferromagnetic object is brought into this homogeneous field, the own field of the object is superposing the local magnetic field of the earth, hence creating a distortion

The extent of the distortion depends on several factors. The most important ones are the size of the object to be detected and its permeability. The larger the object to be detected is the larger will be the detection distance

If the buried object is magnetized, i.e. it has an own magnetic field, the field lines are reacting according to the polarity of the object. In general, the total disturbance of magnetized objects is larger than the disturbance of objects having no own field. But very rarely the total disturbance might even be smaller depending on the object orientation towards the terrestrial magnetic field

UXO detectors are differential magnetometers, i.e. two sensors are arranged in geometrically true alignment at a certain distance and are connected in a way that they measure the value zero in a homogeneous field. Each sensor passing a ferrous object is differently affected. The indication of the gauge is in nT with ± 20 degrees and deflects to plus or minus depending on the orientation of the object in the ground