Editor Key
~
* It enters 0~9 in the input numeric mode
* It enters A~Z , symbol in the input alphabet mode
,
* Use it to cursor up-down
,
* Use it to cursor left-right
* Use it to page up-downt
* Use it to erase privious charactor
* Use it to change input symbol
*
Use it to correct any wrong input while entering data.
* Use it to enter a decimal point (.) in the calibration mode
* Use it to save input value.
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