Martel Electronics 320 - Manual (Page 16)

MA/V KEY
The mA/V key will alternate the electrical
measurement being displayed between milliamps and
volts.
% KEY
Pressing the % key will cause the Model 320
calibrator to switch from displaying in the selected
engineering units to displaying the readings as a
percentage. The Model 320 percent function is a
powerful feature that greatly simplifies the calibration
of I/P, E/P, P/I, P/E AND P/P transmitters. When the
percent function is active, the input to the instrument
being calibrated is displayed as a percent of full scale,
and the output from the instrument being calibrated is
displayed as an error percent.
To utilize the percent function, the operator should
first utilize the setup function (% func) to enter the
desired zero and full scale values required for the
calibrator. This is described on page 21.
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