FOr CRM AT
Advanced Microprocessor Technology
16 x 2 Alpha Numeric LCD
A 32 Membrane type
Capacity to store 2, 000 readings
Serial Communication Interface
Automatic Calculation and Display of Apparent Resistivity
Automatic Setting of Earth Current
Robust Design
Max current setting of 500 mA
40 W output
400 V max., Automatic voltage selection.
For CRM 500
Anvic make Microprocessor based Resistivity Meter AQUAMETER CRM 500
a. Transmitter
1) Selectable Constant Current 5 mA to 500 mA
2) Voltage (Max) 500 V (1000 Vpp)
3) Power 40W
b. Amplifier
Voltage Measurement
Input Impedance 10 M Ohm
Input Range 0-200V
Precision Ram + 0.05 mV
Resistance Measurement
Range m Ohm, Ohm, K Ohm
Precision + 0.02 m Ohm at 500 mA
c. Power Source 12 Volt Rechargeable Battery Pack
d. Weight Portable ; 12.5 Kg
e. S. P. Measurement Facility available for S. P. survey
AQUAMETER CRM AUTO – C
Depth of Investigation – 400 meters
a. Transmitter
1) Constant Current Selected automatically depending on
ground conditions
Max. Current 500mA
Min. Current 1mA
2) Voltage (Max) 500 V (1000 Vpp)
3) Power 40W
b. Amplifier
Voltage Measurement
Input Impedance 10 M Ohm
Input Range 0-200V
Precision + 0.05 mV
Noise Rejection 95 dB at 50-60 Hz
c. Resistance Measurement
Apparent R Range m Ohm, Ohm, K Ohm
Apparent R Precision 0.02 m Ohm at 500 mA
d. System Data
Cycle time 12 seconds
Accuracy 2%
Diagnostic display 9 codes
Temp. Range 0 – 50 degree c
e. Power Source 12 Volt, 12 Ah Rechargeable Battery
Measuring capacity 2000 readings at 20 mA
200 readings at 500 mA
f. Weight 12.5 Kg
g. Dimensions L 400mm X W 225mm X H 330mm
Anvic make Microprocessor based Resistivity Meter AQUAMETER CRM 20
(Depth of Penetration - 125 mtrs.)
a. Transmitter
1) Selectable Constant Current 0.2 mA to 20 mA
2) Voltage (Max) 150 V (300 Vpp)
3) Power 4W
b. Amplifier
Voltage Measurement
Input Impedance 10 M Ohm
Input Range 0-200V
Precision + mV
Noise Rejection 95 dB at 50-60 Hz
c. Resistance Measurement
Apparent R Range 1 Ohm, 100 Ohm, 10K Ohm, 1 mega Ohm
Apparent Resistivity 0.001 (1 Ohm range, 20 mA)
Precision
d. System Data
Cycle time 4 seconds
Accuracy 2%
Diagnostic display 9 codes
Temp. Range 0 – 50 degree c
e. Power Source 12 V, 7Ah Rechargeable Battery
Measuring capacity 2000 readings at 20 mA
f. Weight 10.5 Kg
g. Dimensions L 350mm X W 150mm X H 365mm
