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¡¡¡¡WDJS-2 digital
DC induced polarization receiver
¡¡The instrument is time domain induced polarization receiver,
short electric line operating. A WDFZ series intelligent transmitter
can be selected for power supply, and multi-receivers work simultaneously.
It can measure SP directly, and apparent polarizability of four
different periods of time with supplying ones. It is applied in
detecting metal or non-metal mineral, ground water, engineering
geology and other applications.
 Features:
- Fast and precise---- waveform can be identified automatically
with software and hardware combined so that current-off, time-lapse
and polarizability detecting can be precise. Enlarged apparent
polarizability error resulted from excessive estimate current-off
time error of the same kind of instrument is avoided.
- Automatic---- single-chip compensates SP automatically,
gain control, filtering and signal enhancement.
- Time parameter recording----measuring time is stored with
result for the convenience of resistivity calculation.
- Very large data store----less than 15000 measuring results
can be memorized, no losing when power cutting off.
- Strong anti-interference----to suppress disturbance by
signal enhancement, effective signal is dominated.
- Low power consumption---- large-scale CMOS integrated circuit,
special stand-by working, cut-off instrument power automatically
beyond stand-by working time.
- On-line operation: RS-232 port communicating with other
computer.
- Trouble diagnoses: to ascertain fault location and damaged
parts accurately.
- All sealed constitution----damp-proof and dust-proof design,
long life, etc.
Technical specifications:
- Once voltage: -6V¡«6V ¡À1 %
- Apparent polarizability: -40% ¡«40% ¡À2 %
- Self-potential compensation range:-1V ¡«1V
- Input impedance: ¡Ý30M¦¸
- Adaptive power supply time£º1S, 2S , 4S, 8S,16S, 32S, 64S
- Continuation time for power off: 50Ms¡«1000Ms, 20 notches
- 4 apparent polarizability sampling width
widthGroup |
tm1 (ms) |
tm2 (ms) |
tm3 (ms) |
tm4 (ms) |
1
|
20 |
40 |
80 |
160 |
2 |
40 |
80 |
160 |
320 |
3 |
80 |
160 |
320 |
640 |
4 |
160 |
320 |
640 |
1280 |
- Stacking fold: 1¡« 10, optional
- 50Hz industrial frequency suppression: ¡Ý80dB
- LCD: 4 line x 20 character
- Operating temperature: -10o ~50o, humidity: 95 %RH
- Memory temperature: -20¡æ¡«50¡æ
- Power: eight C size batteries
- Complete appliance power consumption: ¡Ü40 mA
- Weight: ¡Ü 3 Kg
- Dimensions (L¡ÁW¡ÁH): 240mm x 170mm x 160mm
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