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138
Chapter 4 Features and Functions
Mx+B Scaling
• 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.
• Front-Panel Operation : The menu automatically guides you through
the gain, offset, and measurement label settings.
SET GAIN , SET OFFSET , SET LABEL
To reset the gain, offset, and measurement label to their defaults, go
to the corresponding level in the menu and turn the knob. To turn
scaling off (without clearing the gain and offset values), go to the first
level in the menu and select
SCALING OFF .
SET GAIN TO 1 , SET OFST TO 0 , DEFAULT LABEL
To make a null measurement and store it as the offset, go to
SET OFFSET in the menu and turn the knob.
SET OFFSET
• Remote Interface Operation : Use the following commands to set the
gain, offset, and custom measurement label.
CALC:SCALE:GAIN 1.2,(@101)
CALC:SCALE:OFFSET 10,(@101)
CALC:SCALE:UNIT ’PSI’,(@101)
After setting the gain and offset values, send the following command
to enable the scaling function on the specified channel.
CALC:SCALE:STATE ON,(@101)
To make a null measurement and store it as the offset, send the
following command.
CALC:SCALE:OFFSET:NULL (@101)
34970A Refresh UG.book Page 138 Wednesday, February 17, 2010 12:34 PM