Klein Tools AESBH1 handleiding
Handleiding
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5
NOISE REDUCTION RATING (NRR)
The NRR for the AESBH1 Bluetooth
®
Behind-the-Head Earmuffs is 23dB. It is tested
®
Behind-the-Head Earmuffs is 23dB. It is tested
®
and in accordance with ANSI S3.19-1974. To ensure adequate hearing protection, the
earmuffs must be properly fitted according to the FITTING EARMUFFS section.
ANSI S3.19-1974 TESTING
Frequency (Hz) 125 250 500 1000 2000 3150 4000 6300 8000 NRR
CSA CLASS
Mean Attenuation
20.4
23.5
26.2
28.1
33.2
40.4
43.0
41.2
40.9
23
BL
Standard Deviation
3.3
3.1
3.1
2.3
3.7
3.3
3.0
3.0
3.0
NOTE: The above table is based on a headband force of 3.2 lbs. (1.45 kg).
The level of noise entering a person’s ear when the hearing protector is worn as directed, is closely
approximated by the difference between the A-Weighted environmental noise level and the Noise
Reduction Rating (NRR).
EXAMPLE:
•
The environmental noise level as measured at the ear is 89dB(A).
•
The NRR is 23dB.
•
The level of noise entering the ear is approximately equal to 66dB(A).
CAUTION:
For noisy environments dominated by frequencies below 500 Hz, the
C-weighted environmental noise level should be used.
NOTE:
Although hearing protectors can be recommended for protection against the harmful
effects of impulsive noise, the Noise Reduction Rating (NRR) is based on the attenuation of
continuous noise and may not be an accurate indicator of the protection attainable against
impulsive noise such as gunfire. The Environmental Protection Agency uses the Noise
Reduction Rating (NRR) as a rating of a hearing protector’s noise-reducing performance. Klein
Tools cannot guarantee the suitability of the NRR as a method of rating protection as protection
relies on the level and exposure of sound and how well a product fits.
AUDIO INPUT LEVEL
The audio level in the hearing protector is dependent on the audio input level. If the
hearing protector is connected to a music device with a high audio output level, it is the
user’s responsibility to set the audio input level to a safe level. See NOISE EXPOSURE
VALUES table in FEATURE DETAILS section for noise exposure levels.
Bekijk gratis de handleiding van Klein Tools AESBH1, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Klein Tools |
| Model | AESBH1 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 4248 MB |