Environmental Conditions; Warm-Up Period; Line Power - Keithley 2015 Service Manual

Environmental conditions

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

Allow the Model 2015 Multimeter to warm up for at least one hour before performing
calibration.
If the instrument has been subjected to temperature extremes (those outside the ranges stated
in the above section) allow extra time for the instrument's internal temperature to stabilize. Typ-
ically, allow one extra hour to stabilize a unit that is 10°C (18°F) outside the specified tempera-
ture range.
Also, allow the test equipment to warm up for the minimum time specified by the
manufacturer.

Line power

The Model 2015 Multimeter requires a line voltage of 100V/120V/220V/240V, ±10% and a
line frequency of 45Hz to 66Hz, or 360Hz to 440Hz.
An ambient temperature of 18° to 28°C (65° to 82°F)
A relative humidity of less than 80% unless otherwise noted
Calibration 2-3