Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 6:
SCPI command reference
2461-901-01 A/November 2015 6-31
Details
This command sets the lower limit for the limit Y test for the selected measure function. When limit Y
testing is enabled, this causes a fail indication to occur when the measurement value is less than this
value.
If you send this command without the <function> parameter, it will set the limit for all measure
functions. It will not change the setting for a digitize function.
Default is 0.3 for limit 1 when the diode function is selected. The default for limit 2 for the diode
function is –1.
Example
:CALC2:VOLT:LIM1:CLE:AUTO OFF
:CALC2:VOLT:LIM1:AUD FAIL
:CALC2:VOLT:LIM1:LOW 0.25
:CALC2:VOLT:LIM1:UPP 2.5
:CALC2:VOLT:LIMIT1:STAT ON
:READ?
:CALC2:VOLT:LIMIT1:FAIL?
:CALC2:VOLT:LIM1:CLE
Set limit autoclear off.
Enable the beeper for limit 1 when a voltage
measurement exceeds the limit.
Set lower limit 1 for voltage to 0.25 V.
Set upper limit 1 for voltage to 2.5 V.
Enable limit 1 testing for voltage.
Make a reading; the limit is checked and results
display on the front panel
Return the test results; example output if the test
fails on the low limit:
LOW
Clear the test results.
Also see
:CALCulate2:<function>:LIMit<Y>:UPPer[:DATA] (on page 6-33)

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