Performance Verification 18-7
3. Select GLOBAL, and then press ENTER. The unit then displays:
GLOBAL SETUP MENU
SAVE RESTORE POWERON RESET
4. Select RESET, and then press ENTER. The unit displays:
RESET ORIGINAL DFLTS
BENCH GPIB
5. Select BENCH, and then press ENTER to restore BENCH defaults.
Test summary
• DC voltage output accuracy
• DC voltage measurement accuracy
• DC current output accuracy
• DC current measurement accuracy
• Resistance measurement accuracy
If the Model 6430 is not within specifications and not under warranty, see the calibration
procedures in Section 19 for information on calibrating the unit.
Test considerations
When performing the verification procedures:
• Restore factory front panel defaults as previously outlined.
• Make sure that the test equipment is properly warmed up and connected to the Model
6430 jacks.
• Set the Model 6430 to the correct source range. See below.
• Be sure that the Model 6430 output is turned on before making measurements.
• Be sure the test equipment is set up for the proper function and range.
• Allow the Model 6430 output signal to settle before making a measurement.
• Do not connect test equipment to the Model 6430 through a scanner, multiplexer, or
other switching equipment.
WARNING The maximum common-mode voltage (voltage between mainframe LO
and chassis ground or PreAmp IN/OUT LOW and chassis ground) is ±42V
DC. Exceeding this value may create a shock hazard.
CAUTION Exceeding the following voltage values between these terminals may result
in instrument damage:
• INPUT/OUTPUT HI and LO: 250V peak.
• 4-WIRE SENSE HI and LO: 250V peak.
• INPUT/OUTPUT HI and 4-WIRE SENSE HI: 5V.
• INPUT/OUTPUT LO and 4-WIRE SENSE LO: 5V.
• Preamp IN/OUT HI or SENSE HI and GUARD: 40V peak.
• Preamp GUARD and IN/OUT LOW: 250V peak.
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