Operating Manual

6
12. ATTENUATION:
``Tested according to ANSI S3.19-1974
Frequency Hz 125 250 500 1000 2000 3150 4000 6300 8000 NRR value
Mean Value dB 16 17.5 26.9 34.2 34.3 36.5 36.9 35.8 36.8
Std Deviation dB 2.7 2.3 22 2.9 2.5 2.1 2.5 2.6 3.0
26 dB
INFORMATION REQUIRED BY E.P.A.
The level of nose entering a person's ear, when hearing protection is worn as directed, is closely approximated by the difference
between the A-weighted environmental level and the NRR
Example:
1. The environmental noise level at the ear is 100 dB (A).
2. The NRR is 23 decibels (dB)
3. The level of noise entering the ear is approximately equal to 77 dB (A).
CAUTION: For noise environments dominated by frequencies below 500 Hz. the C-weighted environmental noise level should
be used. Improper fit of this device will reduce its effectiveness in attenuating noise. Although hearing protectors can be
recommended for protection against the harmful effects of impulse 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 impulse noise such as
gunfire.
NOTE: The Noise Reduction Rating is derived from testing procedures at an independent laboratory and in accordance to
acceptable ANSI standards. Actual noise reduction can vary from laboratory results as labeled Protection is maximized when
proper protector is selected for application.
7. SPARE PARTS AND ACCESSORIES
Two easily replaced cushions and damping pads. The replacement cushions are easily installed
with a simple press-and-snap function. It is recommended that the hearing protector cushions and
damping pads are replaced with 6-month intervals Is in order to guarantee continued good
noise attenuation, hygiene and comfort.
Clean disposable headset protective pads – Cool II:
The ultimate and comfortable alternative when using headsets in dirty environments or in
extreme heat. Clean is a disposable hygiene pad that is applied directly on the hearing protector
cushions. Package consists of 100 pairs of pads.
LIMITED WARRANTY
This product is warranted against defects for one year from date of purchase from Head Connection Company and
authorized Head Connection franchisees and dealers. Within this period, we will repair it without charge for parts
and labor. Simply bring YOUR SALES slip as proof of purchase date to any HCS STORES. Warranty does not
cover transportation costs. Nor does it cover a PRODUCT SUBJECTED to misuse or accidental damage. EXCEPT
AS PROVIDED HEREIN, HCS MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES
ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES.