Martel Electronics 135 - Manual (Page 34)

Input Functions
Input functions are selected by pressing any of the function keys while
the calibrator is in input mode. Functions available on the Model
130/135 are Volts, Millivolts, Milliamps, Frequency, and Totalize. Input
mode is selected by pressing the INPUT key. The calibrator remains in
input mode until the OUTPUT key is pressed. The cursor position on
the display provides an indication of input or output mode. When the
calibrator is in the input mode, the cursor is displayed in the leftmost
column.
Input measurements are displayed on the left-hand side of the display.
The engineering units are displayed on the top line, and the actual
measurement value is displayed on the second line.
Volts/Millivolts
To measure Volts or Millivolts, press the V/mV (135) key when the
calibrator is in the input mode. The calibrator will begin making voltage
measurements or millivolt measurements. Press the V/mV (135) key or
the V or mV (130) key to toggle between the two ranges. The Model
130/135 will autorange between the 3 internal voltage ranges. The
ranges available for millivolts are identical to the voltage ranges. The
only difference between volts and millivolts is the format of the display.
Milliamps
To measure Milliamps, press the mA key when the calibrator is in the
input mode. The calibrator will begin making current measurements
and display in milliamps.
Frequency
To measure Frequency, press FREQ key when the calibrator is in the
input mode. The calibrator will begin making frequency measurements
Input Functions
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