Placing A Series 2600B In Standby; Warmup Period - Keithley 2601B Reference Manual

Section 2: General operation
The power cord supplied with the Series 2600B contains a separate protective earth (safety
ground) wire for use with grounded outlets. When proper connections are made, the
instrument chassis is connected to power-line ground through the ground wire in the power
cord. In addition, a protective earth (safety ground) connection is provided through a screw
on the rear panel. In the event of a failure, not using a properly grounded protective earth
(safety ground) or grounded outlet may result in personal injury or death due to electric
shock.
4. To turn your instrument on, press the front panel POWER switch to place it in the on (I) position.
5. To turn your instrument off, press the front panel POWER switch to place it in the off (O) position.

Placing a Series 2600B in standby

Placing the Series 2600B in standby does not place the instrument in a safe state (an
(on page 3-89) is provided for this function).
Interlock
When the instrument is on, the output may be placed in an active output state (output on) or a
standby mode (output off). From the front panel, pressing the OUTPUT ON/OFF control toggles the
output using the present instrument configuration. You can also place the output in standby over the
remote interface by sending the following command:
smuX.source.output = 0
Even though the instrument is placed in standby, the output may not be actually off.

Warmup period

The Series 2600B must be turned on and allowed to warm up for at least two hours to achieve rated
accuracies.
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Series 2600B System SourceMeter® Instrument Reference Manual
2600BS-901-01 Rev. B / May 2013