Extech Instruments 407780A - Page 6

407780A‐EU‐ENv1.34/14
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13. dB:Soundlevelunit(decibel)
14. A,C:AorCfrequencyweightingindicator.
15. IMP:Impulsetimeweightingindicator
16. OVER:Over‐rangeindicatorappearsflashingwhenover‐rangemeasurementshavebeen
includedinthesoundlevelmeasurementdatarecordingsession.
17. SLOW:Slowtimeweightingindicator
18. FAST:
Fasttimeweightingindicator
19. :Indicatesthatintegratingsound levelmeasurementshavebeenstopped.
20.
:Indicatesthatintegratingsoundlevelmeasurementsarepaused.
21.
:Startandcontinuousintegratingmeasurementindicator.
22. UNDER:Under‐rangeindicatorappearsflashingwhenunder‐rangemeasurementshave
beenincludedinthesoundlevelmeasurementdatarecordingsession.

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