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Chapter 2 Service
The Agilent 53131A/132A Calibration Procedures
To Calibrate the High Stability Timebase Option (Medium, High,
or Ultra-High)
NOTE
Allow the Counter to warm up for approximately 24 hours before performing
this calibration. This calibration is unlikely to fail, unless the Counter is not warmed
up.
1
Connect the output of a 10 MHz house standard to Channel 1 of the Counter as
shown in Figure 2-5.
Press any one of the arrow keys until CAL: TIMEBAS? is displayed.
2
Note that the timebase choice (CAL: TIMEBAS?) only appears when the Timebase
Option is installed.
3
Press Enter key and follow the instructions in the scrolling message that appears
in the Counter display.
4
Press Enter key after each instruction.
The Counter displays CALIBRATING, and then it should display TB CAL PASS.
If the fail message is displayed (even after the Counter has been warmed up for 24
hours), refer to the troubleshooting section in this chapter.
This completes the High Stability Timebase Option Calibration procedure.
If all tests passed, the Counter is now calibrated.
2-24
Assembly-Level Service Guide
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