Calibration Procedures 3
Keysight E3633A and E3634A Service Guide 53
Automating Calibration Procedures
You can automate the complete verification procedures outlined in this chapter if
you have access to programmable test equipment. You can program the
instrument configurations specified for each test over the remote interface. You
can then enter readback verification data into a test program and compare the
results to the appropriate test limit values.
You can also enter calibration constants from the remote interface. Remote
operation is similar to the local front-panel procedure. You can use a computer to
perform the adjustment by first selecting the required setup. The calibration value
is sent to the power supply and then the calibration is initiated over the remote
interface. The power supply must be unsecured prior to initiating the calibration
procedure. An example program of Excel 97 for calibration over the GPIB interface
is listed at the end of this chapter.
For further details on programming the power supply, see chapters 3 and 4 in the
Keysight E3633A and E3634A User’s Guide.
Test Considerations
To ensure proper instrument operation, verify that you have selected the correct
power-line voltage prior to attempting any test procedure in this chapter. See
page 30 in Chapter 2 for more information.
Ensure that all connections of terminals (both front panel and rear panel) are
removed while the power supply internal self-test is being performed.
For optimum performance verification, all test procedures should comply with the
following recommendations:
– Assure that the calibration ambient temperature is stable and between 20°C
and 30°C.
– Assure ambient relative humidity is less than 80%.
– Allow a 1-hour warm-up period before verification or calibration.
– Use short cables to connect test set-ups.
The tests should be performed by qualified personnel. During performance
verification tests, hazardous voltages may be present at the outputs of the
power supply.