Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 8:
TSP command reference
2461-901-01 A/November 2015 8-7
TSP commands
acal.count
This attribute returns the number of times automatic calibration has been run.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (R)
Yes
Not applicable
Nonvolatile memory
Not applicable
Usage
value = acal.count
value
The number of times autocalibration has been run
Details
The number of times that autocalibration has been run since the last factory calibration. The count
restarts at 1 after a factory calibration.
Example
print(acal.count)
Returns the number of times autocalibration has been
run.
Example output:
15
Also see
Autocalibration (on page 3-51)
acal.run() (on page 8-9)
acal.lastrun.internaltemp
This attribute returns the internal temperature of the instrument when autocalibration was run.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (R)
Yes
Not applicable
Nonvolatile memory
Not applicable
Usage
temperature = acal.lastrun.internaltemp
temperature
The internal temperature
Details
The temperature is displayed in Celsius (°C).

Keithley 2461 Specifications

General

Maximum Current	7 A
Power	100 W
Resolution	6.5 digits
Source Measure Unit (SMU)	Yes
DC Voltage	100 V
Maximum Voltage	100 V
Display	5-inch capacitive touchscreen
Connectivity	USB, GPIB
Software	TSP
DC Current	7 A
Current Source Range	0 to 7 A
Voltage Measurement Range	100 mV to 100 V
Current Measurement Range	10 nA to 7 A
Voltage Measurement Resolution	100 nV