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5522A
Operators Manual
Utility Functions Menu
The Setup Menu softkey labeled UTILITY FUNCTNS (Utility Functions) provides
access to Self Test, Format Nonvolatile Memory, and Instrument Configuration.
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How to Use the NV Memory Menu
Use with extreme care. The format nonvolatile memory menu
softkeys permanently erase calibration constants. Pressing
ALL or CAL invalidates the state of calibration of the 5522A.
Pressing FORMAT NV MEM in the utility functions menu opens the following:
The ALL and CAL softkeys in this menu require the rear-panel CALIBRATION switch
to be in the ENABLE position. The nonvolatile memory contains calibration constants
and dates, setup parameters, and the user report string. In the case of calibration
constants, factory defaults are the same for all Calibrators. They are not the calibration
constants obtained when the Calibrator was calibrated by the factory before shipment.
The softkeys are:
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4-6
SELF TEST This softkey opens a menu with calibrator self-test choices.
FORMAT NV MEM (Format Nonvolatile Memory) Opens a menu to restore all or
part of the data in the nonvolatile memory (EEPROM) to factory defaults.
INSTMT CONFIG (Instrument Configuration) Allows you to view the versions of
software installed in the calibrator as well as the user-entered report string.
ALL replaces the entire contents of the EEPROM with factory defaults. This would
be used by service personnel after replacing the EEPROM, for example. It is not
required in normal use.
CAL replaces all calibration constants with factory defaults but leaves all the setup
parameters unchanged. This is also not required in normal use.
SETUP replaces the setup parameters with factory defaults (Table 3-3) but leaves
the state of calibration unchanged. You do not have to break the calibration sticker
for this operation. Remote commands can also change the setup parameters. (See
these commands in Chapter 6: SRQSTR, SPLSTR, *PUD, SP_SET, UUT_SET,
TEMP_STD, DATEFMT, PRES_UNIT_D, RTD_TYPE_D, TC_TYPE_D, LIMIT.)
Caution
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