Aktakom ATE-9051 Instrukcja Użytkownika Pobierz pdf (Strona 14)

⑦ LEVEL button: Level range selection

Each time you press “LEVEL” button, the level range

will change between ‘Lo’ level, ‘Med’ level, ‘Hi’ level

and ‘Auto’ level in the circular.

⑧ Backlight button

Turn the backlight on/off

⑨ Frequency weighting select button

A：A-Weighting C：C-Weighting

⑩ HOLD button:

Press “HOLD” button, The hold function freezes the

reading in the display.

⑾Power button

Turn the meter power ON/OFF

⑿External DC 9V power supply terminal

For connection with DC 9V power supply.

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Aktakom ATE-9051 Instrukcja Użytkownika Strona 14