Aktakom ATE-9051 Manuel d'utilisateur télécharger pdf (Page 17)

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NOTE: All products are well calibrated before

shipment. Recommended recalibration cycle:

1 year.

Acoustic Calibrat or

6. MEASUREMENT PREPARATION

① Remove the battery cover on the back and put in

one 9V battery.

② Recover the back cover.

③ When battery voltage drops below the operating

voltage or battery aging, this symbol will appear

on LCD. Replace the 9V battery.

④When the AC adapter is used, insert the plug of

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