CALCulate1:SCALe:FUNCtion
Syntax
CALCulate[1]:SCALe:FUNCtion {NULL | PCT | PPM | PPB | SCALe}
CALCulate[1]:SCALe:FUNCtion?
Description
This command selects the operation that will be performed by the scaling function:
l NULL performs a simple null operation. The result will be the measurement minus the reference value.
l PCT performs a percent change operation. The result will be the percent change of the measurement
from the reference value.
l PPM performs a parts per million change operation. The result will be the change of the measurement
from the reference value expressed in parts per million.
l PPB performs a parts per billion (10
9
) change operation. The result will be the change of the meas-
urement from the reference value expressed in parts per billion.
l SCALe performs a Mx-B operation. The result is the measurement multiplied by the gain value M
(CALCulate1:SCALe:GAIN command) minus the offset value B (CALCulate1:SCALe:OFFSet). If CALCu-
late1:SCALe:INVert is enabled (set to ON), the measurement will first be inverted (1/x), resulting in a
M/x-B operation.
Remarks
l For the NULL, PCT, PPM, and PPB operations, the reference value is specified by the CALCu-
late1:SCALe:REFerence command. If no reference value has been specified, the first measurement will
be used as the reference value.
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 resets the function to NULL after a Factory Reset (*RST command) or an Instrument Pre-
set (SYSTem:PRESet command).
Return Format
The query returns the scaling function in the form: NULL, PCT, PPM, PPB or SCAL.
Keysight 53220A/53230A Programmer's Reference 41
CALCulate1:SCALe:FUNCtion
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