5500A
Operator Manual
4-6
4-8. Utility Functions Menu
The Setup Menu softkey labeled UTILITY FUNCTNS (Utility Functions) provides
access to Self Test, Format Nonvolatile Memory, and Instrument Configuration.
SELF
TEST
FORMAT
INSTMT
CONFIG
NV MEM
• SELF TEST This softkey initiates a calibrator selftest.
• 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.
4-9. Using the Format EEPROM Menu
Caution
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 5500A.
Pressing FORMAT NV MEM in the utility functions menu opens the following:
CAL SETUP
Format NV Memory
ALL
All the 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 5500A was calibrated by the factory before shipment. The softkeys are:
• 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 4-1) but leaves
the state of calibration unchanged. You do not have to break the calibration sticker
for this operation. Note that remote commands can change the setup parameters.
(See these commands in Chapter 6: SRQSTR, SPLSTR, *PUD, SP_SET,
UUT_SET, TEMP_STD, SRC_PREF, RTD_TYPE_D, TC_TYPE_D,
LIMIT.)
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