Super Digital DC Resistivity Meter High Deep Water Detector
Geothermal Exploration
Product Description
The WDA-1 Super Digital DC Resistivity Meter represents the
culmination of years of development and production of advanced
electrical measurement instruments by our team. This
next-generation digital DC meter incorporates cutting-edge
technologies, including a Windows 10 tablet interface, Bluetooth
connectivity, a 24-bit A/D converter, and high-power control
systems. Remarkably, the instrument has been significantly reduced
in both size and weight while achieving superior technical
specifications and capabilities that outpace those of comparable
products currently available in both domestic and international
markets. As a result, it is exceptionally well-equipped to perform
effectively in varied and complex environmental conditions.
Technical Specifications
WDA-1/WDA-1A Main Frame (Standard)
Maximum transmitting power: 7200W
Maximum supply voltage: 1200V (with WDZJ-3, no more than 450V)
Maximum supply current: 6A (with WDZJ-3, no more than 2.5A)
Transmitting power pulse width: 1~60s, duty cycle is 1:1.
Voltage: ±32V (24 bit A/D). If Vp≥5mV, accuracy is ±0.2% ±1LSB.
If 0.1mV≤Vp＜5mV, accuracy is ±1% ±1LSB.
Input impedance: >50MΩ
Apparent polarizability accuracy: ±1％±1LSB
SP compensation range: ±10V
Current: 6A (24bit A/D). If Ip≥5mA, accuracy is ±0.2% ±1LSB. If
0.1mA≤Ip<5mA, accuracy is ±1% ±1LSB.
Suppression: for 50Hz industrial frequency interference (common
mode and differential mode interference), suppression is more than
80dB.
Power supply: internal 7.4V 4Ah rechargeable battery continuously
lasts for 20 hours (or 12V external power supply).
Ports support (transmitting unit): A, B, M and N connecting
ports, DC high voltage input ports and external battery terminals,
2 cable ports, RS-232, Bluetooth.
Working temperature: -10℃~+50℃, 95%RH
Storage temperature: -20℃~+60℃
Weight: ≤4kg
Dimension:270mmx246mmx123mm
Internal power source (only for WDA-1A): maximum voltage 96V (two
notches, 48V and 96V); maximum current is 0.7A
Main Features
**Compact and Versatile**
**Genuine Multi-functionality**
**Diverse Measurement Parameters and Broad Application Range**
**Exceptional Power Supply, Wide Range, and High Precision**
**Automatic Measurements with “Infinity” Electrode Connection**
**Bluetooth Technology and Wireless Remote Control**
1. DC high voltage input: connecting to the high voltage power
supply, “＋” for positive terminal and “－” for negative terminal.
2. A: port for Current electrode.
3 .B (∞): port
4 .3-Pole B: when conducting combined electric profiling (3P-PRFL)
or combined electric sounding (3P-VES), connecting the infinity
Current electrode to the “B (∞)” port and connecting the other
Current electrode to“3-Pole B” port.
5 .Charging /External battery 12V: as recharge socket to charge the
internal battery; or as power source socket to connect with the 12V
external battery.
6 .Power: power switch.
7. Power supply/wireless telecommunication: turn on the WDA-1 and
the indicator light turns on; during measuring process, this
indicator light flickers.
8. Multi-electrode work: this indicator light flickers when
conducting multi-electrode imaging mode.
9. RS232: standard serial communication port.
10 .M, N: ports for signal input. “M” port connects to Potential
electrode M electrode and “N” port to Potential N electrode.
11. Cable socket
12: they are connected with intelligent cables when conducting
multi-electrode
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