The multi-Tx device is issued from the latest developments of IRIS Instruments. This resistivity and induced polarization measurement device features three 250W transmitters and 6 reception channels to reduce the acquisition time. This technology is based on the CDMA coding of the injected currents, enabling to compute the contribution of each transmitter on the total voltage received on each channel. In other words, in one injection, the multi-Tx is able to perform 18 resistivity and chargeability measurements with accuracy comparable to the Syscal Pro/R1.
This device particularly suits:
• The monitoring of rapid hydrological processes (when acquisition time must be reduced at constant measurement accuracy)
• All type of applications with an objective of increase of productivity (water resources, environment, civil engineering)
Prosys II
Electre Pro
ERT Lab
Voltage:
0 - 800 Vpp
Current:
3 x ( 0 - 2500 mA )
Power:
Auto controled Internal 3x250W DC/DC converter
Battery:
1 internal rechargeable 12V, 7.2Ah battery for electronics power supply; 1 to 4 external 12V standard car batteries for transmitter.
Pulse duration:
250ms, 500ms, 1s, 2s, 4s, or 8s
Channels:
6 channels
Input Impedance:
100 MOhms
Input Voltage:
15V, automatic gain, input protection 1000V
1 µV / 0.2%
Resolution / Accuracy:
GPS:
GPS input for coordinates and synchronisation
Readings:
Resistivity, self-potential, induced polarisation (up to 20 windows), quality control and optional full waveform
Noise Rejection:
power line rejection, SP linear drift correction.
Storage:
44800 readings, stored on solid state memory
( L x W x H)
44x31x40cm Fiber glass casing, weather proof
weight:
22.5 Kg with internal battery
Operating Temp.:
-20 to +70°C
