Casella-cel CEL-281 Bedienungsanleitung PDF herunterladen (Seite 98)

5. Provided the instrument is not logging data, if necessary, press

the key to change the frequency weighting in use (see Sec-

tion 4.7.2).

6. While sound levels are being displayed, press the or

keys to select the next or previous parameter from the follow-

ing series of parameters available (without disturbing the time

weighting set for any data being logged). Each parameter is

identified by supplementary legends on the display.

Sound pressure level with Fast time weighting,

Maximum level with Fast time weighting

Sound pressure level with Slow time weighting,

Maximum level with Slow time weighting

Sound pressure level with Impulse time weighting,

Maximum level with Impulse time weighting,

Average noise level

7. While average noise levels are being displayed, press the

key to display stored average noise levels calculated with the

next from up to four different exchange rate values (Q = 3, 4, 5,

and 6).

The value used for the currently displayed average noise level

will be shown below the main display. Note that L

is the L

value calculated with Q = 3 (and data time weighting).

Obtaining Required Results

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Casella-cel CEL-281 Bedienungsanleitung Seite 98