The amplifier offers a variety of possibilities to trigger bridge balancing:
Balancing / shunt calibration upon activation (cold start) of the unit. If this option is selected, all the
bridge channels are balanced as soon as the device is turned on.
Balancing / shunt calibration via graphical user interface of device software (channel balance
respectively amplifier balance)
In shunt calibration, the bridge is unbalanced by means of a 174.66 kΩ shunt. The results are:
We recommend setting channels which are not connected for voltage measurement at the highest
input range. Otherwise, if unconnected channels are in quarter- or half-bridge mode, interference may
occur in a shunt calibration!
If you have a measurement device which uses imcDevices software, you also see the application
examples in the Field Busses chapter. There you will find examples which illustrate how to perform a
shunt calibration or adjustment. Owners of µ-MUSYCS receive the pertinent excerpt upon request.
For the special case of shunt calibration: If at least one channel is set to voltage, and zero-point
adjustment, and no channel is set to bridge or strain gauge, then upon triggering of a shunt calibration
both the status and the LED_function status indicate a shunt calibration, but it is not carried out. By
contrast, when adjustment is set, it is indicated after being triggered and also carried out.
Note that importing a changed configuration to the module deletes any previously performed bridge
balancing and resets it to zero. Therefore, always repeat bridge balancing after importing a
configuration!
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