IMC C SERIES User Manual page 95

5.5.1.3 Case 2: Voltage source without ground reference
A voltage source which isn't grounded (e.g. a battery) and whose contacts have no connection to
ground potential is measured. The measurement system is grounded.
When –IN and GND are connected, be sure that the signal source's potential can actually be drawn to
the device ground's potential without an appreciable current flowing. If the source can't be brought to
that potential level (because it turns out to be at fixed potential after all), there is a risk of permanent
damage to the amplifier. If IN and GND are connected, a single end measurement is performed. This
isn't a problem unless a ground reference already existed.
5.5.2 Bandwidth
The channels' max. sampling rate is 100 kSamples/s (10
(without digital low-pass filtering) is: 48 kHz (-3 dB). In AC mode the lower cut off frequency is 0.37 Hz for
5.5.3 Connection
The interconnections are of the type BNC.
© 2018 imc Test & Measurement GmbH
The voltage source itself has no reference to the
device's ground, but instead, its potential floats
freely compared to the device ground. If a
ground reference cannot be established, it's also
possible to connect the negative signal input –IN
to the ground contact GND.
Example
Note
m
s sampling interval). The analog bandwidth
imc C-SERIES - Manual, Version 4 R 3 - 2018-10-19
CS-3008-FD 95