Casella-cel CEL-281 Bedienungsanleitung PDF herunterladen (Seite 102)

criterion levels can be accepted for use, i.e. criterion levels

≥

threshold level as described in Section 2.2.2 and shown in

Table 1.

9. Press the key again to return to the parameter that was

being inspected to see the result of the calculation using the in-

dicated criterion level.

10. While noise dose levels are being displayed, and irrespective of

which Q value and criterion level are in current use, if neces-

sary press the key to show the current threshold level on

the main display.

11. Press the key again (several times) until the required

threshold level is displayed.

A series of up to five different levels can be selected (70 dB,

75 dB, 80 dB, 85 dB,and 90 dB). However only valid threshold

levels can be accepted for use, i.e. threshold levels ≤ criterion

level as described in Section 2.2.5 and shown in Table 1.

12. Press the key again to return to the parameter that was

being inspected to see the result of the calculation using the in-

dicated threshold level.

5.3 Time Information

Provided the CEL-281 is not in calibration delay mode or calibration

mode, and the display is switched ON, it can display various items of

time information as follows at any time, without interrupting any logging

that might otherwise be occurring.

1. Load and/or check batteries, perform a field accuracy check

(acoustic calibration), select time and frequency weightings, and

Obtaining Required Results

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Casella-cel CEL-281 Bedienungsanleitung Seite 102