High Power DC Electrical Measuring System, Type DJF20-1
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DFF20-1 high power DC electrical measuring system consists of a rectification power supply (10 kw or 20kw), a 20kw generator, one or multiple (3~5) receivers, stimulators, dummy loads, AB electrodes, AB power lines, reels, measure electrodes and other accessories. DFF20-1 high power DC electrical measuring systems are widely used for metal and nonmetal mineral resource survey, high-precision mineral resource survey and the exploration of underground water resources.
Feature- There are three synchronization mechanisms to ensure accuracy, including GPS, pulse delay and high accuracy quartz clock.
- The transmitter and rectification power supply are separated, so that the system is more portable and convenient for field work.
- The system is controlled by microcomputer and equipped with a large LCD screen and a touch panel, providing convenience to operators.
- Real-time storage of power supply current and sampling at every minute provide convenience for accurate calculation of apparent resistivity.
- There is overvoltage, overcurrent and overheat protection.
- The special small transformer is efficient and light-weighted.
Maximum measuring voltage | ±2.5V |
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 |
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 24bit true-color LCD |
Storage capacity | 8G-64G |
Waterproof level | IP67 |
Working temptation | -20-+60℃ |
Volume | 240 mm×95 mm×240mm |
Weight | 1.5kg |
Specification | 5A/2000V | 10A/2000V |
AC voltage | Single-phrase 220V | Three-phrase 380V |
Power frequency | 50HZ | 50HZ |
Output voltage | 2000VDC | 2000VDC |
Output current | 5A | 10A |
Weight | 50KG | 83KG |
Volume (mm) | 560*320*500 | 800*400*600 |
Maximum output power | 10KW | 20KW |
Output voltage range | 0--2000V |
Output current | 0.1A-10A |
Battery | Built-in 12V lithium battery or out-connected 12V battery |
Weight | 35kg |
Volume | 560mm×320mm×500mm |
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