Fluke 741B - Measurements in Percent of Scale; Linear-Output Transmitters; Square-Law Process Variables

Documenting Process Calibrator
Using Measure Mode
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Measurements in Percent of Scale
This feature lets you scale the measurements in
accordance with a particular process instrument’s
response. Percent of scale works for linear-output
transmitters or square-law transmitters such as
differential pressure transmitters that report flow rate.
Linear-Output Transmitters
1. If necessary, press M for MEASURE mode.
2. Select a measurement function (m, v, q,
t, or p) as previously described.
3. Press the
Scale softkey.
4. Use the numeric keypad to enter the 0% of scale
value (
0% Value).
5. Press e.
6. Use the numeric keypad to enter the 100% of
scale value (
100% Value).
7. Press e.
8. Leave
Mode set to %.
9. Press the
Done softkey.
Percent of scale remains in effect until you press the
Scale softkey again or change to another
measurement function.
Square-Law Process Variables
When you select √ within scaling, the calibrator takes
the square root of its input and displays the
measurement in percent. For example, when
connected to the output of a delta-pressure
transmitter, the calibrator reading is proportional to
flow rate.
1. If necessary, press M for MEASURE mode.
2. Select a measurement function (m, v, q,
t, or p) as previously described.
3. Press the
Scale softkey.
4. Use the numeric keypad to enter the 0% of scale
value (
0% Value).