Calibration Procedure
Voltage Common Mode Rejection Ratio Calibration
Current Temperature Coefficient Calibration
Resistance Bottom-Out Calibration
Introduction
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. Refer to the
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
for
more information.
l
When calibrating the unit using SCPI commands, most steps involve sending a *OPC? query to syn-
chronize with the power system’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.
l
Once started, you must complete each calibration section in its entirety. As each calibration sec-
tion is completed, the instrument calculates new calibration constants and begins using them.
However, these constants are not saved in nonvolatile memory until a SAVE command is explicitly
given.
l
Exit the calibration mode either by logging out of the Admin menu or by sending CAL:STAT OFF.
Note that any calibration section that was calibrated but not saved will revert to its previous cal-
ibration constants.
7 Verification and Calibration
316
Keysight N6900/N7900 Series Operating and Service Guide
Summary of Contents for N6900 Series
Page 1: ...Keysight Advanced Power System N6900 N7900 Series Operating and Service Guide...
Page 2: ......
Page 63: ...1 kW Models Keysight N6900 N7900 Series Operating and Service Guide 63 1 Quick Reference...
Page 64: ...2 kW Models 1 Quick Reference 64 Keysight N6900 N7900 Series Operating and Service Guide...
Page 78: ...2 Installing the Instrument 78 Keysight N6900 N7900 Series Operating and Service Guide...
