Martel Electronics 320 - Manual (Page 31)

Select – proceed to the next calibration step.
Clr – If depressed while a user calibration step is
active, ????? will be displayed prompting the user to
enter the new calibration value from calibration
source. If depressed during numeric entry, it functions
as the normal clear entry key.
Enter and number keys – used to enter calibration
values
Calibration values are entered as counts without any
decimal places. For example, when calibrating
milliamps, the display might show 19.997. If the
calibration source is 20.000 mA, you would press Clr
and then enter 20000.
The followwing table lists the calibration steps and the
required procedure to use.
The basic procedure for each step is to:
1. Apply the requested input source.
2. Observe the reading on the Model 320.
3. If the reading is outside of limits, press Clr and
enter the correct value.
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