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Product Details

High accuracy Underground mine coal detector in china

Main Applications about coal detector:

1,Coal mining gobs, caves of Custer area, geological disasters survey like landslides other

geological disasters.

2,High resolution engineering geological exploration like factory foundations, highways, bridges,

railways, civil engineering, hydrology, engineering, environmental.

3,For landslides and other geological disaster exploration.

4,Metal and non-metallic mineral resources exploration and geothermal exploration.

Main features about coal detector:

1,Observing Apparent Resistivity and Apparent Polarizability at the same time

2,Mainframe can process common electric operation, maintain all the function of DZD-6A

Multi-function DC Instruments.

Technical specifications about coal detector:

DZD-6A multifunction DC current electrical meter

Receiver part

Parameter	Technical data
Voltage measuring range	±6V
Precision of measured voltage	±1%±1 word @ Vp≥5mV
Precision of measured voltage	±2%±1 word @ 0.1mV≤Vp≤5mV
Measuring accuracy of apparent polarizability	±1%±1 word
Current measuring range	0 ~ 5000 mA
Precision of measured current	±1%±1 word @ Ip≥5mA
Precision of measured current	±2%±1 word @ 0.1≤Ip≤5mA
50Hz power frequency interference suppression	Better than 80dB
SP compensation range	±1V
Input impedance	≥50MΩ

Transmission part

Parameter	Technical data
Maximum supply voltage	900V;
Maximum supply current	5A
Maximum output power	4500 W
Pulse width of power supply	1~59s, duty cycle:1:1
Over-current protection	Over-current protection circuit, 5A fuse tube

Others

Parameter	Technical data
Operating temperature	-10ºC~50ºC, 95%RH
Storage temperature	-20ºC~60ºC
Power supply	DC 12V (8 1# batteries)
Continuous operation time	>10h
Maximum power consumption (power)	<0.9W (Standby mode)
Weight	8 kg (including battery)
Volume	305×200×202 mm
Monitor	128×160 pixels, contrast ratio of display is adjustable.

Multi-channel electrode converter

Parameter	Technical data
Total number of conversion electrode	60 channels
Electrode distance interval coefficient	Minimum coefficient of isolation (MIN) and maximum coefficient of isolation (MAX) can be set.
Type of unit	Wenner four-electrode (AMNB), Schlumbeger-1, Schlumbeger-2, dipole dipole, combined profiling method, differential(AMBN), dipolar resistivity imaging (CT) method, trielectrode rolling over continuous prospecting, and single-sided trielectrode rolling over continuous prospecting
Maximum current	2 A
On resistance of contact:	<0.1Ω
Withstanding voltage	500V DC
Insulation property	500 MΩ
Operating temperature of whole unit	-10ºC~+50ºC
Operating humidity of whole unit	95%
Monitor	Non
Volume	60 Channel: 320×200×245 mm
Volume
Weight	60 channel: 7.5 kg
Weight
Power supply	12V lithium battery
Whole set power consumption	50 mA (Standby mode)