ELECTRIC RESISTIVITY METER-1
The DDR 3 Resistivity Meter is a specialized version of IGIS Resistivity meters designed for use in Resistivity surveys up to about 200m depth. It utilizes rechargeable batteries as power source to energize the ground thus eliminating the necessity of using the relatively expensive dry cells. The equipment consists of two separate comportment-one for reading the current (G.Unit) and the other for directly reading the resistance/the potential (P-Unit), both housed in a single box. The equipment, powered by a 24V rechargeable battery can send highly stabilized currents up to 200 mA and read the resulting potential with a 100 micro volts resolution or ground resistance directly with 50 micro ohms resolution. Housed in sturdy aluminum box fixed in a briefcase, the instrument provides highly reliable digital outputs of ground resistance during field surveys and finds extensive use in ground water exploration, dam site investigation, and delineation of geological structural features and in several other related problems.
- Make: IGIS DDR3 India
- 2 reels of MN
- 2 reels of AB
- Compete field bag with tools
- Configuration:
- Number of channels 2 bipolar, galvanic ally isolated
- Input impedance 10M Ω minimum, 90M Ω maximum
- Dynamic range Up to 140 dB plus 64 dB automatic gain at 1 second integration)
ELECTRIC RESISTIVITY METER-2
PASI Earth Resistivity Meter 16GL-N use for Electrical resistivity survey which is high resolution 16bit, floating point and highly sensitive lowest voltage 600nV can be measured
Applications
- Subsoil groundwater prospecting at shallow, medium and great depth.
- Geological stratigraphy
- Studies of salt water contamination in fresh water layers
- Landslide monitoring
- Mineral exploration
- Archaeological research
Main Functions
- High resolution (16 bit, floating point)
- High sensitivity (lowest voltage measured:600Nv)
- Instrument managed by multiprocessor
- Continuous readout of current/voltage
- Auto ranging (automatically adapting of the instrument range to the signal value to measure)
- Acquisition memory of 18000 readings without direct data download
- Easy menu of quick learning
- Creation of energetic wave based upon the parameters supplied by the user
- Data transfer through usb
- More than 40 hours of autonomy
- Automatic filtering
- Notch filters 50/60Hz
- Reduction of noise with stacking and average of the values acquired
- Automatic calibration at every switch-on
- Suitable to any type of energizer (max.1000V, 1A)
- Light and compact structure in a sturdy weather proof case