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SCPI Commands for the Digital Multimeter
VX4101A MultiPaq Instrument User Manual
3–217
Parameter Value
<Line Frequency> 50|60|400
CALibrate:VALue
<Calibration Input Value>
0 to 300,000,000
<AUTO> OFF|ON|ONCE
MEASure?
CONFigure
SENSe
READ?
INITiate
INP:IMP
CALibrate:LFRequency <line frequency>
The CALibrate:LFRequency command defines the power line frequency at
which the DMM performs noise rejection. You can define the frequency as 50,
60, or 400 Hz. With 400 Hz, the DMM actually uses 50 Hz rejection, since
50 Hz is a subharmonic of 400 Hz.
The line frequency rejection value (60 Hz factory default) is stored in nonvolatile
memory for recall after power-on. Issuing the CALibrate:LFRequency command
automatically stores the value specified into nonvolatile memory.
NOTE. Because much of the setup of the DMM is dependent on the line frequency
rejection value, the DMM function of the module returns to its power-on state
when this command is issued.
Specifying a value other than 50, 60, or 400 Hz will cause the DMM to default
to 60 Hz.
CALibrate:SOURce <source>
Prior to calibration, the DMM must be programmed to a calibration source of
External. An error will be generated if a CALibrate:VALue command when the
calibration source is internal. This helps prevent inadvertent calibration of the
DMM.
CALibrate:VALue <frequency>
A calibration of the DMM is recommended once a year to maintain published
specifications accuracy. For more information, see Calibration for the DMM in
Appendix D: Calibration.
Limits
Related Commands
Command Description