Calibration Requirements; Environmental Conditions; Warm-Up Period; Line Power - Keithley 6220 Reference Manual

Model 6220/6221 Reference Manual

Calibration requirements

Be sure that you perform calibration:
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Environmental conditions

Conduct the calibration procedures in a test environment that has:
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Warm-up period

Allow the Model 622x to warm up for at least one hour before performing calibra-
tion.
If the instrument has been subjected to temperature extremes (those outside the
ranges stated above), allow additional time for the instrument's internal tempera-
ture to stabilize. Allow one extra hour to stabilize a unit that is 10°C (18°F) outside
the specified temperature range.
Also, allow the test equipment to warm up for the minimum time specified by the
manufacturer.

Line power

The Model 622x requires a line voltage of 100V to 240V and a line frequency of
50Hz to 60Hz.
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Under the proper environmental conditions.
After the specified warm-up period.
Using the correct line voltage.
Using the proper test equipment.
Using the specified reading limits.
An ambient temperature of 18° to 28°C (65° to 82°F).
A relative humidity of less than 70% unless otherwise noted.
Return to Section 17 topics
Calibration 17-3