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Publication No. 980938 Rev. K
Model T940 User Manual
Astronics Test Systems
Programmable Channel Calibration 6-15
5. (Optional) Save the calibration to a file for later restore, e.g., File | Load
DRA Calibration.
6. (Optional) Update the module to the new calibration factors just obtained
using the Update button. If this step is omitted, the calibration factors will
revert at the next power cycle.
CVH/CVL
The CVH/CVL calibration calculates the offset and gain of the input comparator
levels. For the DR4 a separate offset and gain is calculated for each group
offset. The Verify button is available for use both before and after calibration. It is
recommended that the calibration be verified before the Update button is used to
store the current drive high and drive low calibration factors. The Export button
can be used to save the calibration factors into a text file for examination and
later restore, e.g., File | Load DRA Calibration.
Select Calibrate Function
Equipment: Basic Setup
Procedure:
1. Place a check mark next the CVH/CVL menu item on the Calibrate
Function menu.