Rockwell Automation 1441-PEN25-Z Enpac 2500 Data Collector - Manual (Page 125)

Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012 125
Collecting and Reviewing Data Chapter 4
Bias Check
The Bias function checks the bias of the transducer before taking the
measurement. There are two options for the Bias Check parameter, Automatic
and Manual.
When you are in the Route Hierarchy, you can check the bias voltage for ICP
measurements manually by pressing 0 (Shift)+2 (B).
This turns on the ICP supply (if it wasn't already) and measures the DC bias
voltage for each channel used by this measurement.
Channel X for single channel points. Typically X and Y is for two-channel points,
and X, Y, and Z for Triax points.
The Bias check screen shows the voltages for each channel.
The Bias check results screen displays a red or green
input indicator.
Green appears when the bias voltage is between 2V
and 18V, which is regarded as normal.
Red appears if it is outside this range.
This can be useful when troubleshooting a cable or
accelerometer.