CALCulate1:SCALe:REFerence
Syntax
CALCulate[1]:SCALe:REFerence {<reference> | MINimum | MAXimum | DEFault}
CALCulate[1]:SCALe:REFerence? [{MINimum | MAXimum | DEFault}]
Description
This command sets the reference value for the NULL, PCT, PPM, and PPB operations.
Parameters
Name Type Range of Values Default Value
<reference> Numeric -1.0E+15 to -1.0E-15, 0.0
+1.0E-15 to 1.0E+15
MIN = -1.0E+15
MAX = +1.0E+15
0.0
Remarks
l Specifying a reference value disables automatic reference selection (CALCu-
late1:SCALe:REFerence:AUTO set to OFF).
l If automatic reference selection is enabled, the reference value will be set to the first measurement that
is made.
l Scaling function results must be in the range of -1.0E+24 to -1.0E-24, 0.0, or +1.0E-24 to 1.0E+24.
Results outside these limits will be replaced with -9.9E+37 (negative infinity), 0, or +9.9E+37 (positive
infinity), as appropriate.
l The instrument sets the reference value to 0.0 with automatic reference selection enabled after a Fact-
ory Reset (*RST command) or an Instrument Preset (SYSTem:PRESet command))
Return Format
The query returns the reference value in the form +0.00000000000000E+000.
Examples
The following example enables the NULL scaling function. The first measurement will be used as the ref-
erence value.
CALC:SCAL:FUNC NULL
CALC:SCAL:REF:AUTO ON
CALC:SCAL:STAT ON
CALC:STAT ON
READ?
CALCulate1:SCALe:REFerence
48 Keysight 53220A/53230A Programmer's Reference