SYSCAL Junior

For environmental applications

Compact yet powerful: 400 V - 100 W - 1.2 A
Easy to use, Internal memory for data storage,
Automatic computation of resistivity & chargeability (IP),
Proven reliability

APPLICATIONS
Vertical electrical sounding and resistivity profiling for:
- Pollution monitoring and mapping
- Salinity control
- Shallow groundwater exploration
- Depth-to-rock determination
- Weathered bedrock localization
- Depth and thickness of aquifers

OUTSTANDING FEATURES
- Microprocessor controlled measurement of electrical resistivity and chargeability
- Display of voltage, intensity, SP, standard deviation
- Computation of resistivity for most electrode arrays: Schlumberger, Wenner, gradient, dipole, resistance
- Memory capacity for more than 800 readings (3000 in the multi-electrode mode)
- Data transfer to PC through serial link
- Capability to drive automatic multi-electrode switching system (E-NODE & MULTINODE)

EASE OF USE
Taking a reading is very easy:
- Strike SPACING to input spacings (AB/2, MN/2)
- Select output voltage (50V to 400V)
- Strike START
- V and I are displayed during stacking
- Strike RESULT to read Rho
- Strike MEMORY for data storage

ACCURACY
- Noise monitoring before injection
- SP compensation including linear drift
- Digital stacking for noise reduction
- Standard deviation computation

RELIABILITY
- Weather proof.
- Wide operational temperature range from -20°C to +70°C.
- Shock resistant fiber-glass case.

ACCESSORY: MULTI-ELECTRODE SYSTEM
- The SYSCAL Junior can be connected to electrode switching nodes and drive automatic data acquisition (E-NODE and/or MULTINODE)

Technical specifications

TRANSMITTED CURRENT SPECIFICATIONS
- Output current: up to 1200 mA
- Output voltage: up to 400 V (800 V peak to peak)
- Output power: 100 W
- Selectable cycle time of 0.5, 1 or 2s
- Output current precision: 0.5% typical.

MEASURED VOLTAGE SPECIFICATIONS
- Measuring process: automatic ranging and calibration
- Input impedance: 10 Mohm minimum
- Input voltage: protection up to 1000 V, range from -10 to +10 V
- Measured voltage precision: 0.5% typical.
- Noise reduction: continuous stacking, selectable from 1 to 255 stacks
- SP compensation, including linear drift correction using plus-minus-plus sequence
- Resistivity accuracy: 0.5% typical.

GENERAL SPECIFICATIONS
- Operating temperature: -20°C to +70°C
- Dimensions: 31 x 25 x 21 cm (w-h-d)
- Weight: 7 kg
- Power supply: 12V, 7Ah internal rechargeable battery or 12V external car battery
- Autonomy with internal battery: more than 6000 readings at 20 mA output current and 10 kilo/ohm electrode resistance, with 10 s injection time each reading

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