Keithley 2010, Service Manual, Page: 18 / 134

Performing the verification test procedures
Test summary
Verification test procedures include:
• DC volts
• AC volts
• DC current
• AC current
• Resistance
• Temperature
• Frequency
• Ratio
If the Model 2010 is not within specifications and not under warranty, see the calibration
procedures in Section 2.
Test considerations
When performing the verification procedures:
• Be sure to restore factory defaults as outlined above.
• Restore factory defaults and choose the measurement function to be tested.
• Make sure that the equipment is properly warmed up and connected to the front panel
input jacks. Also make sure that the front panel input jacks are selected with the INPUTS
switch.
• Do not use autoranging for any verification tests because autorange hysteresis may cause
the Model 2010 to be on an incorrect range. For each test signal, you must manually set
the correct range for the Model 2010 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.
• Do not connect test equipment to the Model 2010 through a scanner or other switching
equipment.
WARNING The maximum common-mode voltage (voltage between INPUT LO and
chassis ground) is 500V peak. Exceeding this value may cause a breakdown
in insulation, creating a shock hazard. Some of the procedures in this section
may expose you to dangerous voltages. Use standard safety precautions when
such dangerous voltages are encountered to avoid personal injury caused by
electric shock.
Performance Verification 1-5