Casella CEL-352 dBadge Manuel d'instructions télécharger pdf (Page 24)

Casella CEL-35X dBadge Users Handbook – Page 24

Display

Setup

Blue LED

Off

Blue LED

Flashing Slow

Blue LED

Flashing Fast

ISO

Leq <=79.9dB(A)

AND

Lpk <=134.9dB(C)

Leq >=80 & <=84.9

dB(A)

Lpk >=135 & <=136.9

dB(C )

Leq >=85dB(A)

Lpk >=137dB(C)

OSHA

Lavg (T=80)

<=84.9dB(A)

AND

Lpk <=139.9dB(Z)

Lavg (T=80) >=85 (A)

Lpk >=140dB(Z)

Lavg (T=80)

>=85dB(A)

AND

Lpk >=140dB(Z)

For the ISO mode, the alarm levels are based upon the EU

directive 2003/10/EC. OSHA levels are based upon the American

Occupational Safety and Health Administration (OSHA)

regulations. As an example, if the CEL-35X is in ISO mode, and

the Leq rises above 80dB(A) then the LED will flash slowly (approx

once per second). If an impulsive noise occurs above 137dB(C)

peak, the blue LED will flash quickly (approximately twice per

second). Note that for peak levels the action level only needs to

be exceeded once during the day for the employee to be over the

relevant action level. However, for the time-averaged data (Leq

and Lavg) the LED may switch on and off depending on how the

employees’ exposure varies throughout the day. It is important to

realise alarm indications are based on the average or peak levels

since the start of the run, and not averaged to 8 hours.

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Casella CEL-352 dBadge Manuel d'instructions Page 24

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