Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 6:
SCPI command reference
2461-901-01 A/November 2015 6-23
Example
:CALC:VOLT:MATH:FORM MXB
:CALC:VOLT:MATH:MMF 0.80
:CALC:VOLT:MATH:MBF 50
:CALC:VOLT:MATH:STAT ON
Set the math function for voltage measurements
to mx+b.
Set the scale factor for voltage measurements to
0.80.
Set the offset factor to 50.
Enable the math function.
Also see
Calculations that you can apply to measurements (on page 3-82)
:CALCulate[1]:<function>:MATH:FORMat (on page 6-19)
:CALCulate[1]:<function>:MATH:MBFactor (on page 6-20)
:CALCulate[1]:<function>:MATH:STATe (on page 6-24)
:CALCulate[1]:<function>:MATH:PERCent
This command specifies the reference constant that is used when math operations are set to percent.
Type Affected by Where saved Default value
Command and query
Recall settings
Instrument reset
Power cycle
Measure configuration list
Save settings
Measure configuration list
1
Usage
:CALCulate[1]:<function>:MATH:PERCent <n>
:CALCulate[1]:<function>:MATH:PERCent DEFault
:CALCulate[1]:<function>:MATH:PERCent MINimum
:CALCulate[1]:<function>:MATH:PERCent MAXimum
:CALCulate[1]:<function>:MATH:PERCent?
:CALCulate[1]:<function>:MATH:PERCent? DEFault
:CALCulate[1]:<function>:MATH:PERCent? MINimum
:CALCulate[1]:<function>:MATH:PERCent? MAXimum
<function>
The measure function:
• Current: CURRent[:DC]
• Resistance: RESistance
• Voltage: VOLTage[:DC]
The digitize function:
• Digitize current: DIGitize:CURRent
• Digitize voltage:
DIGitize:VOLTage
<n>
The reference used when the math operation is set to percent; the range is -1e12 to
+1e12
Details
This is the constant that is used when the math operation is set to percent.
The percent math function displays measurements as percent deviation from a specified reference
constant. The percent calculation is:

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