CALCulate:SCALe:UNIT
Syntax
CALCulate:SCALe:UNIT "<units>" [, (@<ch_list>)]
CALCulate:SCALe:UNIT? [(@<ch_list>)]
Description
This command assigns a custom measurement label (e.g., RPM, PSI, etc.) to scaled measurements on the specified multiplexer channels. If you omit the optional <ch_list> parameter, this command applies to the internal DMM, independent of any channels or a scan list.
Used With:
34921A through 34925A Multiplexer Modules
Parameters
|
Name |
Type |
Range of Values |
Default Value |
|
<units> |
A string containing up to 3 characters enclosed in quotes.
You can use letters (A-Z), numbers (0-9), an underscore ( _ ), blank spaces,
or the "#" character which displays a degree symbol ( |
Null String ( " " ) | |
|
<ch_list> |
Numeric |
One or more channels in the form (@sccc). |
If <ch_list> is omitted, this command applies to the internal DMM. |
Remarks
Readings can be acquired during a scan using the multiplexer or by the internal DMM independently (when a channel list is not specified). For scanning measurements using the multiplexer modules, an error is generated if the internal DMM is disabled (see INSTrument:DMM[:STATe] command) or not installed in the mainframe.
If you omit the optional <ch_list> parameter, assigns a label for the internal DMM. The label is applied to the internal DMM from the time the CALCulate:SCALe:STATe command is executed.
If you set the measurement label to
°C, °F, or K, note that this has no effect the temperature units set using the UNIT:TEMPerature command. The CONFigure and MEASure? commands automatically reset the measurement labels on the specified channels to a null string ( " " ).
A Factory Reset (*RST command) turns off scaling, clears the scaling values (gain = 1, offset = 0), and sets the measurement labels to a null string ( " " ) on all channels. An Instrument Preset (SYSTem:PRESet command) does not clear the scaling values or measurement labels and does not turn off scaling.
Return Format
The query command reads the measurement label for each channel specified and returns an ASCII string enclosed in double quotes. Multiple responses are separated by commas.
Examples
The following command adds the measurement label "RPM" (Revolutions Per Minute) to channels 3 and 13 in slot 1.
CALC:SCAL:UNIT "RPM",(@1003,1013) or CALC:SCAL:UNIT 'RPM',(@1003,1013)
The following query returns the measurement labels assigned to channels 3 and 13 in slot 1.
CALC:SCAL:UNIT? (@1003,1013)
Typical Response: "RPM","RPM"