High Power DC Electrical Measuring System, Type DJF

DJF high power DC electrical measuring system consists of a DZ-2 rectification power supply (5-15kw optional), a DJF-2 DC electrical transmitter (5-15kw optional), one or multiple DJS-9 DC electrical receivers or DJR-2 waveform electrical receivers, AB power lines/ electrodes, data processing software and related accessories. DJF high power DC electrical measuring systems are widely used for mass screening and detailed detection of metal and nonmetal mineral resource survey, high-precision mineral resource survey and the exploration of underground water resources.

Feature
There are multiple synchronization mechanisms to ensure accurate and prompt measurement, including GPS, pulse delay and high accuracy quartz clock, guaranteeing repeatability and consistency.
The high transmitting power (5kw, 10kw and 15kw optional) can meet various detection requirements.
Transmitter and receiver can both record travel time automatically. The system can record the power supply current and receive a field electric potential value at a set timing, so as to calculate the apparent resistivity accurately.

Specification 1. DJS-9 DC electrical receiver

Maximum measuring voltage	±2.5V
Measuring voltage resolution	0.01mV
Measurement accuracy	±1% (when ＞10mV) ±0.2mV (when 3mV~10mV)
SP compensation range	±1000mV
Synchronization modes	GPS, high accuracy quartz clock, software
Adapt power-on line	1~60s optional
Superposition times	1~10 optional
Instrument delay time	100ms ~1000ms optional
Interference Suppression on 50Hz Power Frequency	Better than 60dB
Instrument input impedance	＞5 MΩ
Power	7.2V8.8Ah chargeable lithium battery (continuously powering for 50 hours)
Volume	240×95×240mm
Weight	1.5kg

2. DJR waveform DC electrical receiver

Measuring voltage range	±40V (32bit A/D)
Voltage resolution	5nV
Relative measure error	≤±0.2%
Instrument input impedance	≥50MΩ
Input protection voltage	1000V
Screen	5-inch 24 bit true-color LCD
Storage capacity	8G-64G
Waterproof level	IP67
Operation temptation	-20-+60℃
Volume	240 mm×95 mm×240mm
Weight	1.5kg

3. DZ-2 rectification power supply

Type	DZ5-2 5KW	DZ10-2 10KW
Maximum output power	5KW	10KW
Maximum output currency	6A	10A
Maximum output voltage	1000V
Input power	AC 220V/50Hz
Working temperature	10℃~ +50℃, 95%Rh
Volume	600*370*340mm	600*370*340mm
Weight	57kg	80kg

4. DJF-2 DC electrical generator

Type	DJF5-2 5KW	DJF10-2 10KW
Maximum Transmitting Power	5KW	10KW
Maximum Power Supply Current	6A	10A
Maximum Power Supply Voltage	±1000V
Synchronization modes	GPS, high accuracy quartz clock, software
Output waveform	Bipolar square wave; duty ratio=1:1; pulse width=1~60s
Current Data Storage	At least 8,000 set; time interval programmable; minimum interval=1 min
Working Temperature	-10℃~ +45℃, 93%Rh
Volume	580*450*360mm	580*450*360mm
Weight	22kg	22kg