Computer : PC compatible
Memory Capacity : More than 1 500 000 readings
Display : LCD, 200 x 64 pixels. 8 lines of 40 char.
Multifunction connector : Current and potential for all four channels including RS232 communication for external devices as PC, LOG & Imaging
External devices : LUND Imaging System, SAS LOG
Power : Optional Clip-on rechargeable power pack or external 12V DC through SAS-EBA
Casing : Rugged cast Aluminium case, meets IEC IP 66
Weight : 5.3 kg
Dimensions : 105 x 325 x 270 mm (W x L x H) with SAS-EBA
Ambient temperature : -5°C to + 50°C, operating
Receiver
Resistivity
Number of channels : 4 bipolar, galvanically isolated
Input impedance : 10 M Ω minimum
Resolution (theoretical) : 30 nV
(WI Accuracy (typical) : 1 %
(WI Precision (measured) : better than 0,1 % (in the range 4 - 200, Ω at 1 second integration)
Dynamic range : Up to 140 dB plus 64 dB automatic gain (at 1 second integration)
Induced Polarisation (IP)
Number of channels : 4 bipolar, galvanically isolated
Input impedance : 10 M Ω minimum
Resolution : 30 nV
Type of IP meas. : Time domain chargeability (M)
Initial time delay : 10 ms up to 10 s in steps of 10 ms
Precision (typical) : 0,01 ms
IP chargeabitity : Up to ten time windows on all four channels
IP basic integr. interval : 20 ms / 16.66 ms depending on power line frequency
Integration interval : Up to 8 seconds
Dynamic range : Up to 140 dB plus 64 dB automatic gain (at 1 second integration time)
Self Potential (SP)
Number of channels : 4 bipolar, galvanically isolated
Input impedance : 10 M Ω minimum
Maximum input voltage : 400 Volt
Automatic ranging : 0-250 mV, 0-10 V, 0-400 V
Resolution (theoretical) : 30 nV
Accuracy (typical) : 1 %
Accuracy (measured at 1 second integration)
: At 100 mV better than 0,2 %
: At 5 V better than 0,2 %
: At 100 V better than 0,2 %
Precision (measured at 1 second integration)
: At 100 mV better than 0,2 %
: At 5 V better than 0,1 %
: At 100 V better than 0,1 %
Dynamic range : Up to 140 dB plus 64 dB automatic gain (at 1 second integration)
Transmitter
Output current : 1,2,5,10,20,50,100,200,500,1000 mA (operator set or autoranging)
Maximum output voltage : 400 V (800 V peak-to-peak)
Maximum output power : 100 W
Cycle type in resistivity mode : Plus-Minus-Minus-Plus
Cycle type in IP mode : Plus-Zero-Minus-Zero
Pulse length : 0.1 to 4 seconds
Output current accuracy : Better than 0,5 % at 100 mA
Accessories
Multi-electrode Survey Systems for 2D & 3D LUND Resistivity & IP Imaging
A centrally switched system for automatic resistivity, IP profiling and vertical imaging
(See LUND Imaging System for more information)
Borehole logging
SAS LOG 300 logging unit
Cable length : 300 m
Cable markings : Every meter
Probe diameter : 40 mm
Weight (200 m) : 15 kg
Dimensions : 330x750x225 mm (WxLxH)
Survey modes and ranges:
16 " short normal : 0,05 -100 000 Ω m
64 " long normal : 0,5 -100 000 Ω m
18 " lateral : 0,5 -100 000 Ω m
Fluid resistivity cell : 0,05 -100 000 Ω m
Self Potential : 0,05 -1 000 mV
Temperature : 0°C to + 50°C
Temperature precision : ± 0,01°C (0-20°C)
: ± 0,1°C (20-500C)
Temperature accuracy : ± 1°C
Water level indication
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