Keithley 2600B User Manual

Series 2600B
System SourceMeter® Instrument Reference Manual Section 7: TSP
command reference
2600BS-901-01 Rev. C / August 2016 7-201
smuX.cal.restore() (on page 7-203)
smuX.cal.state (on page 7-204)
smuX.cal.unlock() (on page 7-205)
smuX.cal.lock()
This function disables the commands that change calibration settings.
Type TSP-Link accessible
Affected by Where saved Default value
Function
Yes
Usage
smuX.cal.lock()
X
Source-measure unit (SMU) channel (for example, smua.cal.lock() specifies
SMU channel A)
Details
This function disables functions that can change calibration settings. Before you can lock calibration,
the calibration constants must be written to nonvolatile memory or a previous calibration set must be
restored. Error code 5012, "Cal data not saved - save or restore before lock," will result if this
function is called when the calibration state is smuX.CALSTATE_CALIBRATING.
Example
smua.cal.lock()
Disables calibration functions for SMU channel A.
Also see
Adjustment (on page B-18)
smuX.cal.restore() (on page 7-203)
smuX.cal.save() (on page 7-204)
smuX.cal.state (on page 7-204)
smuX.cal.unlock() (on page 7-205)
smuX.cal.password
This attribute stores the password required to enable calibration.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (W)
Yes
Not applicable
SMU nonvolatile
memory
"KI0026XX"
Usage
smuX.cal.password = newPassword
X
SMU channel (for example, smua.cal.password applies to SMU channel A)
newPassword
The new password (string)
Details
A new password can only be assigned when calibration has been unlocked.
The calibration password is write-only and cannot be read.

Keithley 2600B Specifications

General

Brand	Keithley
Model	2600B
Category	Measuring Instruments
Language	English