IMC C SERIES User Manual page 108

108 Device description
·
There is a voltage drop across the resistances of the leadwires and the internal measuring resistance
W
of 120 which is proportional to the amperage. This lost voltage is no longer available for the supply
of the transducer (2.4 V = 120
voltage is sufficient. It may be necessary to select a leadwire with a large enough cross-section.
5.7.4 Sensors with current feed
Measurement of current-fed sensors, e.g. ICPs is possible with the DSUB-15 imc plugs. Therefore the
special connector ACC/DSUB-ICP2 is required.
For measurement of current-fed sensors, the special connector ACC/DSUB-ICP2 is required.
For the description of the measurement with current feed sensors, see here
·
The ACC/DSUB-ICP2 plug cannot be used together with triaxials.
5.7.5 Sensor supply
The C-50xx channels are enhanced with an integrated sensor supply unit, which provides an adjustable
supply voltage for active sensors. The supply outputs are electronically protected internally against short
circuiting to ground. The reference potential, in other words the sensor's supply ground contact, is the
terminal GND.
The supply voltage can only be set for a group of eight channels.
The supply outputs are electronically protected internally against short circuiting to ground. The
reference potential, in other words the sensor's supply ground contact, is the terminal GND.
The voltage selected is also the supply for the measurement bridges. If a value other than 5 V or 10 V is
set, bridge measurement is no longer possible!
5.7.6 Bandwidth
The channels' maximum sampling rate is 100 kHz (10 µs). The analog bandwidth (without digital low-
pass filtering) is 5 kHz (-3 dB).
5.7.7 Connection
Please find here the DSUB-15 pin configuration
© 2018 imc Test & Measurement GmbH
Note
W
* 20 mA). For this reason, you must ensure that the resulting supply
Note
Note
Reference
170
.
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imc C-SERIES - Manual, Version 4 R 3 - 2018-10-19