User`s guide

Chapter 3 Calibration Procedures

Test Considerations

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

Agilent 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 24

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.

Caution The tests should be performed by qualified personnel. During performance

verification tests, hazardous voltages may be present at the outputs of the power

supply.