ennoLogic eD560L, Руководство пользователя

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1.3 Keypad
1 - Power-on/Measurement key
2 - Volume/Area key
3 – Indirect Measurement (Pythagorean
Theorem)
4 - Plus (+) key
5 - Historical data key
6 - Minus (-) key
7 - Reference key / Backlight key
8 - Cancel/Power-off key
9 - Units key
1.4 Battery Installation or Replacement
Open the battery cover on the back of the instrument and install
two 1.5V AAA batteries according to polarity indicators (alkaline
batteries are recommended).