IRIS Instruments

Compact, easy-to-use and field-proof, the SYSCAL R1 PLUS is an all-in-one multi-node resistivity imaging system specifically designed for medium-depth exploration. It combines a power source, transmitter up to a 200W or 1200Vpp output voltage, and a 2 channel-receiver in a single unit. The different switching cards allow it to work with 24 (Switch-24) up to 72 (Switch-72) electrodes. For imaging applications, Iris Instruments proposes different standard heavy-duty multi-core cables (5 traces – 10m, 10 traces – 5m and 10 traces – 10m). The measurement is fully automatic, controlled by a microprocessor: automatic self-potential correction, automatic ranging, digital stacking for signal enhancement, error display in case of procedure troubles. The internal memory can store full information on intensity, voltage, resistivity, IP chargeability, geometrical parameters, and station number. A serial link permits the transfer of the data to a microcomputer for plotting and interpretation of the data.

This VLF receiver is designed for high productivity surveys, in groundwater and mining exploration.

No orientation of the operator with respect to the direction of the transmitter is required since three magnetic sensors measure the components of the VLF field. Tilt or horizontality of the sensor unit is neither required since two inclinometers are correct for tilted position.