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WDJD-4
GOLD
Product Description
Multi-function Digital DC Resistivity & Induced Polarization Testing Equipment
1. Main features and functions
Integrates transmission and reception, light and flexible.
All adopt CMOS large-scale integrated circuits, equipped with a unique standby working mode, the whole machine is small in size, low in power consumption, and has many functions. If the operator does not operate within 10 minutes, the instrument will automatically turn off the power.
Perfect anti-interference technology--adopts multi-stage filtering and signal enhancement technology, integrated electrical interference suppressor function (with super anti-common mode interference and differential mode interference ability), high measurement accuracy.
Automatically compensate for natural potential, drift and electrode polarization.
The receiving part has instantaneous overvoltage input protection capability, and the transmitting part has overvoltage, overcurrent and AB open circuit protection capabilities.
The measurement parameters of the entire measurement line can be drawn into a curve on the large display screen, and the measurement results are intuitive and clear.
The full Chinese touch panel is equipped with Chinese menu prompts, which is extremely convenient to operate. The entire panel has only 16 keys.
The simple calculator can complete routine calculations such as field device coefficients.
The working cycle can be set arbitrarily, and there are 9 common field working methods to choose from, as well as the input and calculation functions of the pole distance constant and device constant.
Pole distance constant table - For all devices, up to 100 groups of different pole distance constants can be pre-stored, so as to avoid the input errors caused by repeated input of the same pole distance constant. Just enter a number to call up the corresponding group of pole distance constants for use or reset.
Ground resistance inspection - The grounding conditions of each electrode can be checked at any time, which is convenient and practical.
Ultra-large capacity data storage - When resistivity and induced polarization mode are used, data of up to 2250 measurement points (3500 measurement points when resistivity and self-electromagnetic mode) can be stored.
The instrument setting parameters and measurement data are all protected against power failure, and data will not be lost when the instrument is turned off or the battery is replaced.
The equipped RS-232C interface can work online with other microcomputers.
The diagnostic program can quickly and accurately determine the location of the fault and the main damaged components.
The fully sealed structure has the advantages of waterproof, dustproof and long life.
Technical Specification
Receiving | |
Voltage | ± 6 V,±1 % ± 1LSB |
Measurement accuracy | if Vp≥10mV, ± 5‰ ± 1LSB; if Vp < 10mV, ±1% ± 1LSB; |
if Vp≥10mV, ± 5‰ ± 1LSB; if Vp < 10mV, ±1% ± 1LSB | |
Input impedance | ≥50MΩ |
Measurement precision of apparent polarizability | ± 1%± 1LSB |
SP compensation range | ± 10V |
Current | 6 A,±1% ± 1 LSB |
Measurement accuracy | if IP≥10mA, ± 5‰± 1LSB; if IP<10mA,± 1%± 1LSB |
Suppression | over 90Db for 50Hz industrial frequency (common mode interference or differential mode interference) |
Transmitting | |
Maximum transmitting power | ±6600W |
Maximum voltage | ±1100V |
Maximum current | ±56A (when voltage ≤900V) |
Pulse width | 1~60s, duty cycle is 1:1 |
Others | |
Working temperature | -10°C~+50°C (Environmental), 95 %RH |
Storage temperature | -20°C~+50°C (Environmental) |
Power supply | internal 12V 9Ah rechargeable battery , lasts for 30 hours (or 12V external power supply) |
Overall current | ≤55mA |
Weight | ≤4.5Kg |
Dimension (LxWxH) | 270mmx246mmx175mm |
Product Details
Standard configuration list of WDJD-4:
No. | Details | Qty |
1 | WDJD-4 mainframe | 1 set |
2 | USB communication line | 1 set |
3 | Charger | 1 PC |
4 | 12V power input line | 1 PC |
5 | Instrument backpack | 1 PC |
6 | Windows software U Disk | 1 PC |
7 | Operational manual | 1 PC |
8 | Unpolarized electrodes | 1 Pair |
9 | Iron electrodes | 10 PCs |
