Percent - Keithley 3700 series Reference Manual

Series 3700 System Switch/Multimeter Reference Manual
value = '\\'
dmm.math.mxb.units = value
NOTE

Percent

This math function determines percent deviation from a specified reference value. The percent
calculation is performed as follows:
Percent
Where:
Input: The normal measurement (if using REL, it will be the REL'ed value)
Reference: The user-entered constant (dmm.math.percent)
Percent: The result
NOTE
NOTE
Use dmm.math.mxb.bfactor and dmm.math.mxb.mfactor to set the b and m factor for mx + b.
Once all settings configured then, use dmm.math.enable = dmm.ON to enable math operation.
The dmm.math.percent attribute (see
reference value for the percent calculation, while the dmm.rel.acquire function (see
dmm.rel.acquire
The acquire function triggers a single reading and uses the result as the new REL value. When
a value is set using
query command returns the programmed value. When reference is set using
(on page 9-110), the
reference value.
Document Number: 3700S-901-01 Rev. A / August 2007
When sending mxb units remotely, to embed a '\' into a string, precede the '\' with an
additional '\'. (see "To use the degrees symbol" paragraph).
(Input - Reference)

Reference
The REL'ed reading of the input signal (if using REL) is used by the percent
calculation.
The result of the percent calculation is positive when the input exceeds the reference
and negative when the input is less than the reference. The result of the percent
calculation may be displayed in exponential notation. For example, a displayed
reading of +2.500E+03% is equivalent to 2500% (2.5K%).
(on page 9-110)) uses the input signal as the reference value.
dmm.math.percent
dmm.math.percent
100%

dmm.math.percent
(on page 9-102), the dmm.math.percent
(on page 9-102) query command returns the acquired
Section 5: Relative, Math, and dB
(on page 9-102)) specifies the
(on page 9-102)
dmm.rel.acquire
5-5