Martel Electronics 235 - Manual (Page 37)

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
230/235 are Volts, Millivolts, Milliamps, Ohms, RTDs, and
Thermocouples. 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 (235) key when the
calibrator is in the input mode. Pressing the V/mV key will cause the
235 to toggle between the two ranges. The 230 has separate V/mV
keys.
The Model 230/235 calibrator will begin making voltage measurements
or millivolt measurements. Press the V/mV key to alternate between
the two measurements. The calibrator 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 displaying Milliamps.
Input Functions
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