Agilent Technologies Serials 2933A-08856 to 08860 3025A-09316 and, Agilent 6031A, Agilent 6030A

Once the all-indicators-off period is over, the GP-IB address switch setting is displayed on the meter displays for one second. For example, if the address switches were set for address 5, the display would be: Adr 5

If the unit fails any of the self tests an error code is displayed on the meter displays. The unit will not respond to any commands, either from the front panel or GP-IB, and it should be removed for service. See the Service manual for a listing of the self test failure codes.

NOTE	Because the power supply is testing itself, it is not possible to guarantee that the unit will provide an
	unambiguous indication of all possible failures. For example, a failure in the core of the microcomputer or
	in the hardware used to light the front-panel display may prevent the unit from indicating that it has failed
	a test.

The following procedure ensures that the supply is operational, and may be used as an incoming inspection check. Ensure that the rear-panel mode switches are set as shown in Figure 3-4, and that the sensing jumpers are tightened securely. Check that the rear-panel label indicates that the supply is set for the line voltage to be used. There should be no cables connected to the rear panel GP-IB connector. Check that the recessed OVP ADJUST control on the front panel is fully clockwise. The GP-IB address switches may be set to any address from 0 to 30 for this procedure.

NOTE +Sense lead is jumpered to + out and - sense lead is jumpered to - out lead at the factory.

Figure 3-4. Factory Settings, Mode Switch

a.Press top of LINE rocker switch in to turn supply on. Fan should operate. Check that display shows GP-IB address set by rear-panel switches. After address display, CURRENT indicator should remain on and either CV or CC indicator should remain on. (SRQ indicator will remain on if rear-panel PON SRQ switch has been set to 1.)

b.Press momentary-contact DISPLAY SETTINGS pushbutton switch and check that VOLTS display indicates 0.00 and AMPS display indicates 0.00.

c.Press momentary-contact DISPLAY OVP pushbutton switch and check that VOLTS display indicates maximum OVP for the power supply.

34Operating Instructions