CALIBRATION (MAIN MENU KEY)
4.4.
Calibration is the process of adjusting the
9100A/9105A
system
so that individual variations in the time delays associated with
the probe and pod are known and compensated.
Five calibrations should be routinely performed on the system,
as described in the Technical User’s Manual. The calibrations
are:
0
Probe compensation calibration.
l
Probe to external clock module calibration.
0
Probe to pod calibration.
l
I/O
module external calibration.
l
I/O module to pod calibration.
Calibration should be done when the system is first set up and at
regular intervals (at least monthly) after that. Calibration is also
necessary whenever devices attached to the system are changed
or repaired. Probe compensation remains stable and is only
necessary when a probe is first connected to the mainframe.
The section on “An Alternative to Calibration,” describes how to
calibrate the system by restoring data generated by previous
calibrations. This should be done after each power-up or reset
before testing or troubleshooting a UUT.
4-8
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