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Instrument Calibration
Introduction
Calibration Interval
Calibration Setups
Test Considerations
Enter Calibration Mode
Voltage Programming and Measurement Calibration
Current Temperature Coefficient Calibration
Current Programming and Measurement Calibration
Enter a Calibration Date
Save Calibration and Log Out
Introduction
SHOCK HAZARD, LETHAL VOLTAGES - Many models generate output voltages up to
2,000 VDC! Ensure that all instrument connections, load wiring, load and sense
connections are insulated using high-voltage wire. Always attach the safety cover
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
setups required for calibration. Also refer to the
connecting the voltmeter, current shunt, and load. Additional information about calibration follows.
The correct password is required to enter the Admin menu, which contains the calibration function.
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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
more information.
When calibrating the unit using SCPI commands, most steps involve sending a *OPC? query to syn-
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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.
Once started, you must complete each calibration section in its entirety. As each calibration sec-
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tion is completed, the instrument calculates new calibration constants and begins using them.
These constants are not saved in nonvolatile memory until a SAVE command is explicitly given.
Keysight RP7970 & RP7980 Series Operating and Service Guide
section for a list of the equipment and test
Measurement Setups
section for information about
6 Verification and Calibration
Password Protection
for
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