Calibration Commands - Keithley 2601 Reference Manual

Series 2600 System SourceMeter® Instruments Reference Manual
Parameter values
The full-scale parameters are actually 90% of full scale as indicated in
Table 16-5. Note that you cannot send a value of exactly 0 for the two zero parameters, but must
instead send a very small value, for example 1e-10 or -1e-10.
Sense modes
Table 16-2,
source and measure ranges are calibrated using the LOCAL sense mode. In addition, the 100mV
or 200mV source and measure ranges are also calibrated using the REMOTE sense mode, and
the 1mA and 1V or 2V source ranges are also calibrated using the CALA sense mode.

Calibration commands

Table 16-5
commands, refer to
Table 16-5
Calibration commands
1
Command
smuX.cal.adjustdate = caldate
smuX.cal.date = caldate
smuX.cal.due = caldue
smuX.cal.lock()
smuX.cal.password = "newpassword"
smuX.cal.polarity = polarity
smuX.cal.restore([calset])
smuX.cal.save()
calstate = smuX.cal.state
smuX.cal.unlock("password")
smuX.measure.calibratei(range,
cp1measured, cp1reference,
cp2measured, cp2reference)
smuX.measure.calibratev(range,
cp1measured, cp1reference,
cp2measured, cp2reference)
1. smuX = smua for the Model 2601/2611/2635; smuX = smua (Channel A) or smub (Channel B) for the Model 2602/2612/2636.
2. If you have version 1.1.4 firmware, or earlier, then your passwords are KI002601 for the Model 2601, and KI002602 for the
Model 2602.
3. Calibration point 1 should be performed at approximately 0% of range; calibration point 2 should be performed at approximately
90% of range. See
2600S-901-01 Rev. C / January 2008
Table 16-3, and Table 16-5
summarizes remote calibration commands. For a more complete description of these
Section 12.
Description
Set calibration adjustment date for 2635/2636 only.
Set calibration date (caldate of 0 indicated date not set).
Set calibration due date (caldue of 0 indicated date not set).
Lock out calibration.
Change password to "newpassword".
Set polarity:
smuX.CAL_AUTO (auto polarity).
smuX.CAL_NEGATIVE (negative polarity).
smuX.CAL_POSITIVE (positive polarity).
Load calibration set of constants:
smuX.CALSET_NOMINAL (nominal constants).
smuX.CALSET_FACTORY (factory constants).
smuX.CALSET_DEFAULT (normal constants).
smuX.CALSET_PREVIOUS (previous constants).
Store constants in non-volatile memory as DEFAULT
calibration set.
Request calibration state:
smuX.CALSTATE_CALIBRATING
smuX.CALSTATE_LOCKED
smuX.CALSTATE_UNLOCKED
Unlock calibration (default password: KI0026XX)
Calibrate current measure range:
±range (measurement range to calibrate).
cp1measured (Series 2600 measured value for cal. point 1).
cp1reference (reference measurement for cal. point 1).
cp2measured (Series 2600 measured value for cal. point 2).
cp2reference (reference measurement for cal. point 2).
Calibrate voltage measure range:
±range (measurement range to calibrate).
cp1measured (Series 2600 measured value for cal. point 1).
cp1reference (reference measurement for cal. point 1).
cp2measured (Series 2600 measured value for cal. point 2).
cp2reference (reference measurement for cal. point 2).
Table 16-2 or Table 16-3 for calibration points.
Return to
list sense modes for the calibration steps. Note that all
Section Topics
Section 16: Calibration
Table 16-2,
2
3
2
Table 16-3, and
16-7