Instrument Calibration
Introduction
Calibration Interval
Calibration Setups
Test Considerations
Enter Calibration Mode
Voltage Calibration
Current Temperature Coefficient Calibration - RP793xA, RP794xA
Current Calibration
Current Sharing Calibration - RP795xA, RP796xA
Resistance Bottom-Out Calibration - RP795xA, RP796xA
Enter a Calibration Date
Save Calibration and Log Out
Introduction
SHOCKHAZARD, LETHAL VOLTAGES Many models generate voltages greater than 60
VDC, with some models rated at 950 VDC! Ensure that all instrument connections,
load wiring, and load connections are either insulated or covered using the safety
covers provided, so that no accidental contact with lethal voltages can occur.
The instrument features closed-case electronic calibration; no internal mechanical adjustments are
required. The instrument calculates correction factors based on input reference values that you set
and stores correction factors in non-volatile memory until the next calibration adjustment is
performed. This EEPROM calibration memory is not changed by cycling power or *RST.
Refer to the Recommended Test Equipment and Setups section for a list of the equipment and test
setups required for calibration. Also refer to the Measurement Setups section for information about
connecting the voltmeter, current shunt, and load. Additional information about calibration follows.
l The correct password is required to enter the Admin menu, which contains the calibration function.
The password is pre-set to 0 (zero). You can change the password once calibration mode is
entered to prevent unauthorized access to the calibration mode. Refer to Password Protection for
more information.
l When calibrating the unit using SCPI commands, most steps involve sending a *OPC? query to syn-
chronize with the power supply’s command completion before proceeding. The response from the
instrument must be read each time *OPC? is given. In some steps, it may take up to 30 seconds for
*OPC? to respond.
Keysight RP7900 Series Operating and Service Guide 273
6 Verification and Calibration
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