Ace instruments ALPHA Bedienungsanleitung Seite 10

PRODUCT PARAMETER:
Battery
No. 7 (AAA) 1.5V
specifications
Number of
batteries Section 2
loaded
Output rating 10mW*2
Operational
>10mA
current
MATTERS NEED ATTENTION:
1. This product and its accessories should be kept away from
children to avoid injury.
2. This product contains batteries and flammable materials,
so do not keep close to the fire source and place it in a
high temperature environment to avoid explosion or fire. !
3. Non-professionals, please do not disassemble and repair!
4. The hearing protector is equipped with level-dependent at-
tenuation and a safety-related audio imput. The user should
check for proper operation before use. If distortion or failure
is detected, the user should follow the manufacturer's main-
tenance instructions.
5. Performance may degrade as the batteries charge. The ty-
pical duration of continuous use that can be expected from
the earmuff's fully charged batteries is approximately 300
hours.
6. The audio level output of this hearing protector may exceed
the exposure limit. It should therefore not be used as an
entertainment product.
7. The useful life is 3 years.
ACE_Alpha_Bedienungsanleitung_03-2022.indd 18-19 ACE_Alpha_Bedienungsanleitung_03-2022.indd 18-19
Storage
-20-60°C
temperature
Storage
<30%
humidity
Working
0-40°C
temperature
Working
<80%
humidity
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CRITERION LEVEL ACCORDING TO EN352-4:
The criterion level is defined as the level (mean minus one
SD) of the ambient noise level that results in an indoor level
(in hearing protection) of 85 dBA. For natural XP, the L criterion
at (C-A = 10 dB) would be 93.6 dBA by linear extrapolation.
Similarly, the H criterion at (C-A = -2 dB) would be 100.6 dBA
by linear extrapolation. The detailed measurement data are
shown in the following table.
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