Sper-scientific 840018 Sound Level Meter Pen Manual do Utilizador descarregar pdf (Página 6)

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level is above 130dB.

• "UNDER" is displayed when the

sound level is below 32dB.

4. During the measurement procedure,

press the Power / Max Hold button to

freeze the measurement. "MAX" and

the measurement are displayed. When

the frozen sound level measurement is

exceeded, the new maximum

measurement will be displayed. Press

the Power / Max Hold button again to

exit this function.

5. To turn the unit off, press and hold the

Power /Max Hold button for 2 seconds.

Battery Replacement

Replace the battery when the low battery

icon is displayed. press the Battery Cover

to slide it down and off. Insert two 1.5V

batteries, paying attention to the polarity as

indicated in the compartment. Reattach

the cover.

Optional Accessories

840031 - Acoustical Calibrator

840091 - Wind Screen Replacement

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Sper-scientific 840018 Sound Level Meter Pen Manual do Utilizador Página 6