•During a Monitor operation, the gain and offset values are applied to
all readings on the specified channel.
•You can specify a custom label with up to three characters. You can
use letters (A-Z), numbers (0-9), an underscore ( _ ), or the “#” character
which displays a degree symbol ( ° ) on the front panel (displayed as a
blank space in an output string from the remote interface). The first
character must be a letter or the “#” character (the “#” character is
allowed only as the leftmost character in the label). The remaining
two characters can be letters, numbers, o r an underscore.
Note: If you set the measurement label to °C, °F, or K, note that this
has no effect on the temperature units set in the Measure menu.
•Although the instrument does not directly support strain gage
measurements, you can measure a strain gage using a 4-wire
resistance measurement with scaling. For more information, refer to
“Strain Gage Measurements” on page 373.
Note: Agilent BenchLink Data Logger software has built-in
strain gage measurement capability.
Use the following equations to calculate the gain and offset.
M = 1
GF x R0 B = − 1
GF
Where GF is the gage factor and R0 is the unstrained gage resistance.
For example, a 350Ω strain gage with a gage factor of 2 would use the
following gain and offset values: M=0.001428571, B=-0.5 (be sure to
use 61⁄2 digits of resolution for this measurement).
•The maximum gain allowed is ±1E+15 and the maximum offset
allowed is ±1E+15.
•The MEASure? and CONFigure commands automatically set the
gain (“M”) to 1 and offset (“B”) to 0.
•A Factory Reset (*RST command) turns off scaling and clears the
scaling values on all channels. An Instrument Preset (SYSTem:PRESet
command) or Card Reset (SYSTem:CPON command) does not clear the
scaling values and does not turn off scaling.
Chapter 4 Features and Functions
Mx+B Scaling
120