Radio Shack Micro User's Guide download pdf (Page 6)

Understanding Indications

Level Indicator

Themeterdisplayssoundlevelusinganumberandabar

graph.ThenumbershowsthesoundlevelindBwithin±10

dBoftheselectedrangeandisupdatedonceasecond.

Thebargraph’scenterpointrepresentsthemidpointofthe

selectedrange,forexample,forRange70,thecenterpoint

represents70dB.Thebargraphupdatesevery0.2seconds

or0.5seconds.

Overrange Indicator

Whenthesoundlevelishigherthanthehighestnumber

intheselectedrange,thebargraphgoesto+10dBand

boththebargraphandthenumberthatrepresentsthenext

rangeash.

Forexample,ifthemetermeasures91dBinRange80,

thenthenumber90andthebargraphash.Ifthemeter

measuresmorethan126dBinRange120,thenumber126

andthebargraphash.

Ifyougettheoverrangeindicator,tryahigherrangesetting

untilyougetareadingintheupperhalfoftherange(0to

+10dB).

Underrange Indicator

Whenthemeasuredsound

levelislowerthanthe

lowestsoundlevelofthe

selectedrange,LOappears

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Radio Shack Micro User's Guide Page 6