Description

Contains a highly isolated input system which ensures that signals are not corrupted
by noise from other channels. The GL840's inputs are suitable for combined
measurements from voltage, temperature, humidity, logic, and pulse signals.
The standard configuration has 20 analog input channels. It is expandable to
200 channels by adding optional 20 channels extension terminal base unit (B-566)
and input terminal units (B-564 or B-565).