Series 3700 System Switch/Multimeter Reference Manual
Section 5
:
Relative, Math, and dB
Document Number: 3700S-901-01 Rev. A / August 2007
5-3
dmm.reset('active')
Reset DC volts only.
dmm.rel.level=1e-6
Set the rel level.
dmm.rel.enable = dmm.ON
Enable REL.
dmm.configure.set("myconfig")
Call the configuration myconfig.
dmm.setconfig("1001:1030", "myconfig")
Set Channels 1001 to 1030 to use
myconfig configuration.
scan.create('1001:1030")
Create scan list of channels 1001 to
1030 using myconfig.
Math
The Series 3700 has three built-in math calculations that are accessed from the MATH menu:
mX+b, percent, and reciprocal (1/X).
NOTE
The settings shown in the menu tree are the factory default settings.
NOTE
The various instrument operations, including Math, are performed on the input signal
in a sequential manner.
mX+b
This math operation lets you manipulate normal display readings (X) mathematically according
to the following calculation:
Where:
X
is the normal display reading.
m
and
b
are the user-entered constants for scale factor and offset.
Y
is the displayed result.
NOTE
The REL'ed reading of the input signal (if using REL) is used by the mX+b calculation.
mX+b REL
The mX+b function can be used to manually establish a REL value. To do this, set the scale
factor (M) to 1 and set the offset (b) to the REL value. Each subsequent reading will be the
difference between the actual input and the REL value (offset).