Relative and Math 7-7
Front panel math operations
Perform the following steps to select and enable a math expression. Figure 7-1 shows the
math configuration menu tree.
1. Select the appropriate source (V or I) for the math expression.
2. Press CONFIG and then FCTN to display the math expression selections. Place the cur-
sor on the desired math expression and press ENTER:
• For 2-point math expressions, you will be prompted to enter the two source values.
Press ENTER after entering each source value.
• For Percent Deviation, you will be prompted to set the reference value, and enter
the tolerances for the reference. The following methods are available to set the ref-
erence value:
- User-specified reference value — Enter the desired reference value and press
ENTER.
- Acquire reference value — With the output on, press the AUTO range key.
The SourceMeter will perform a measurement and display that reading as the
reference. Press ENTER to select that reference value.
3. Turn on the output by pressing the ON/OFF key.
4. Press the FCTN key to enable the selected math function. The MATH annunciator will
turn on, and the result of the math expression will be displayed.
Note that with FCTN enabled, the sweep for a 2-point math expression runs continuously.
Each sweep updates the reading. The source value cannot be changed while the 2-point sweep
is running. However, the range keys remain active.
CONFIG
FCTN
VOLT COEFF
POWER
OFF COMP
OHMS
VAR ALPHA
% DEV
Figure 7-1
Math configuration
menu tree
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