Allen-Bradley 1756-IF8I User Manual page 153

8. Connect a 1 Ω precision resistor to all module channels being calibrated.
IMPORTANT
9. Click Next.
The Group Low Reference Results dialog box indicates the status of each
channel after calibrating for a low reference.
10. If channels are OK, click Next.
If any channel reports an error, return to
status is OK.
If the error persists indefinitely, click Stop to exit calibration. The channel
remains calibrated to the accuracy level achieved at factory calibration.
The Attach High Reference Ohms Sources dialog box appears. It indicates
the channels are calibrated for a high reference and the range of the
calibration.
11. Connect a 487 Ω precision resistor to all module channels
being calibrated.
IMPORTANT
Rockwell Automation Publication 1756-UM540E-EN-P - December 2017
Calibrate the ControlLogix Analog I/O Modules
After you connect the precision resistor, we recommend that you wait
for a minimum of two minutes before proceeding to the next task to
obtain the highest calibration accuracy.
step 8
After you connect the precision resistor to the 1756-IRT8I module, we
recommend that you wait for a minimum of two minutes before
proceeding to the next task to obtain the highest calibration accuracy.
Chapter 8
and click Retry until the
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