Model 2750 Multimeter/Switch System Service Manual Performance Verification 1-7
Model 7700 tests
Model 7700 verification test procedures include:
• DC volts
• AC volts
• DC current
• AC current
• Resistance
• Temperature
•Frequency
• Ratio and average
Test considerations
When performing the verification procedures:
• Be sure to restore factory defaults as outlined above.
• Make sure the equipment is properly warmed up and connected to the correct input
terminals. Also make sure that the INPUTS switch is in the correct position.
• Do not use autoranging for any verification tests because autorange hysteresis may
cause the Model 2750 to be on an incorrect range. For each test signal, you must
manually set the correct range for the Model 2750 using the range keys.
• Make sure the calibrator is in operate before you verify each measurement.
• Always let the source signal settle before taking a reading.
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