Technicial specification comparasion of different geo-electrical system

	Supersting R8/IP (AGI)	Syscal Pro (IRIS)	Resecs II (DMT)	ABEM	E60DN	WGMD-9
Cable system	Centralized	Distributed	Distributed	Distributed	Distributed	Distributed
Measured parameters	Apparent resistivity Polarization Self-potential	Apparent resistivity Polarization Self-potential	Apparent resistivity Polarization Self-potential	Apparent resistivity Polarization Self-potential	Apparent resistivity Polarization Self-potential	Apparent resistivity Polarization Self-potential
Rated current	2A	2.5A	2.5A	2.5A	2A	6A
Rated voltage	800V	800V	800V	600V	800V	1500V
Rated power	200W	250W	250W	250W	1600W	9000W
Electrode extend	256	1300	960	16320	65535	79633
Channel	1 or 8	10	1 or 8	4 or 12	10	1 or 10
Measuring range	±10V	±12V	±10V	±5V	±10V	±10V
SP compensation	±10V	±5V	±10V	±5V	±3V	±10V
Resolution	30nV	3nV	30nV	3nV	30nV
A / D converter	24 bit	24 bit	24 bit	24 bit	24 bit	24 bit
Input resistance	>150MΩ	>200MΩ	30-150MΩ(option)	20MΩ, 200MΩ, 300MΩ(option)	>150MΩ	>50MΩ
IP window	0.5s, 1s, 2s, 4s, 8s	0.2s, 0.5s, 1s, 2s, 4s, 8s	Custom	0.1-30s	Custom	Custom
Resistivity pluse	0.2, 0.4, 0.8, 1.2, 3.6s, 7.2s or 14.4s	0.2s, 0.5s, 1s, 2s, 4s, 8s	Custom	0.1-30s	Custom	1-59s
Precision	better than 1%	better than 1%	better than 1%		1%	0.10%
Noise suppression	better than 100dB	better than 100dB	better than 100dB	better than 100dB	better than 80dB	better than 140dB
Data storage	79000 points	44800 points	40GB extensible hard disk	150000 points	30G	1GB