53210A Math, Graphing, and Data Logging 6
Keysight 53210A User’s Guide 151
Using the Scale Functions
The counter scaling functions include null, percent change (PCT), part per million
change (PPM), part per billion change (PPB), and scale (Mx-B). The function is
selected with the command:
CALCulate[1]:SCALe:FUNCtion {NULL|PCT|PPM|PPB|SCALe}
CALCulate[1]:SCALe:FUNCtion? (query form)
NULL - performs a null operation. The result is the measurement minus the
reference value. (See “Scale Reference Value” for information on setting the
reference).
PCT - performs a percent change operation. The result is the difference between
the measurement and the reference value, expressed in percentage.
PPM - performs a parts per million change operation. The result is the difference
between the measurement and the reference value, expressed in parts per million.
PPB - performs a parts per billion change operation. The result is the difference
between the measurement and the reference value, expressed in parts per billion.
SCALe - performs an Mx-B operation. The result is the measurement (x) multiplied
by the gain value M (
CALCulate1:SCALe:GAIN command) minus the offset value B
(
CALCulate1:SCALe:OFFSet). If CALCulate1:SCALe:INVert is enabled (On), the
measurement will first be inverted (1/x), resulting in a M/x-B operation.
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