2100-900-01 Rev. D / September 2011 Return to Section Topics 4-27
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations
This mathematical function multiplies a measurement reading (X) by a specified scale factor (M),
and adds an offset (B) automatically. The answer (Y) will then be shown on the display according
to the following equation:
Y=MX+B
This is especially useful when you need to do slope calculations on a series of measurements.
The values of the "M" and "B" can be changed through the configuration of this function; these
values are stored in volatile memory until the meter has been turned off or the remote interface is
reset. You can use either the front panel or remote interface to perform this function and set these
two constants.
To use the MX+B function from the front panel:
NOTE Set the values of M and B before selecting a measurement function.
1. Set the values of M and B for your math function by pressing CONFIG and SHIFT + %.
2. Use the PREV and NEXT keys to switch between M and B, and press ENTER on your
selection.
3. Then use the PREV and NEXT keys to move through the digits, and use the up and down
arrow keys to increase or decrease the number to the desired value.
4. Press ENTER to set the value.
5. Select a measurement function and press SHIFT + % to activate the MX+B function (refer to
Figure 4-22).
Figure 4-22
Using the MX+B function from the front panel
To use the MX+B function from a remote interface:
Use the following commands to enable and configure the MX+B function:
CALCulate:FUNCtion MXB
CALCulate:STATe {OFF|ON}
CALCulate:STATe?
CALCulate:MXB:MMFactor {<value>|MINimum|MAXimum}
CALCulate:MXB:MMFactor? [MINimum|MAXimum]
CALCulate:MXB:MBFactor {<value>|MINimum|MAXimum}
CALCulate:MXB:MBFactor? [MINimum|MAXimum]
dB
Definition
FILTER
NEXT
PREV
DIGITS
RATIO
%
MIN/MAX
NULL
ESC
ENTER
AUTO
SINGLE
TRIGGER
STORE
RECALL
LOCAL
SHIFT
CONFIG
MENU
AUT O
DCV
ACV
22
FREQ
CONT
TEMP
4 WIRE
RATIO
V
INPUT
PEAK
200V
PEAK
HI
LO
PEAK
500V
3A
RMS
INPUTS
3A 250V
FRONT/REAR
AMPS
R
1000V
REF
CAT 1000V
CAT 600V
LOCK
SETUP
ACV
22
FUNCTION
DCI ACI
4
PERIOD
LIMITS MX+B
dB
EXTRIG
HOLD
MATH
TRIGGER MEMORY
dBm
RANGE
DISPLAY
NEXT
PREV
POWER
OFF
ON
SENSE
F
NEXT
PREV
%
ENTER
SHIFT
CONFIG
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