CASELLA CEL CEL-450 Informações Técnicas descarregar pdf (Página 41)

Operation Press Display Shows Comments

7. Edit the

Automatic

calibration

level

Press or to change

the level over the range 85.0

to 130.0 dB in 0.1 dB steps.

Press again to save

the new level.

8. Perform a

new

Automatic

calibration

Highlight L

again.

Then as described in Step 4,

press to perform an

automatic calibration to the

new level.

4.3 Manual Calibration Check of the

Microphone

Normally, Auto calibration will be used as the most convenient method.

However, the user has the option of performing a manual microphone

calibration, for example iwhen the calibration source is outside the limits

of the automatic calibration (85.0 to 130.0 dB).

Operation Press Display Shows Comments

1. Start with

the Auto

calibration

screen

This is the Calibration Check

screen.

It shows the current sound

level.

2. Highlight

Auto

This allows manual

operation to be selected.

CEL-450/490 Operators Handbook - Page 41

Acoustic Calibration Check

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CASELLA CEL CEL-450 Informações Técnicas Página 41