User`s guide

Agilent 4155C/4156C User’s Guide Vol.2, Edition 6 7-39
Measurement Units and Functions
Self-calibration
Self-calibration
Agilent 4155C/4156C provides the self-calibration function. To execute the
self-calibration, do following:
1. Open the measurement terminals, or disconnect the device under test from the
measurement terminals to perform the calibration properly.
2. Press
System key in the PAGE CONTROL key group.
3. Select CALIB/DIAG primary softkey.
The SYSTEM: SELF-CALIBRATION/DIAGNOSTICS screen is displayed.
4. Select CALIB ALL secondary softkey to start the calibration.
After the calibration, each test result is displayed in each STATUS field.
NOTE While calibration is executed, the 4155C/4156C cannot start the measurement.
Auto Calibration
The 4155C/4156C also provides the automatic calibration capability that triggers
the self-calibration automatically every 30 minutes after the measurements, and
executes the calibration. To enable the function, do following:
1. Move the pointer to the AUTO CALIB field on the
SYSTEM: SELF-CALIBRATION/DIAGNOSTICS screen.
2. Select the ON secondary softkey.
NOTE If you enable the function, do not forget to open the measurement terminals or to
disconnect the device under test from the measurement terminals after the
measurements. The measurement terminals should be opened during the calibration.