Battery Replacement - Bilsom ELECTO Instrucciones Para El Usuario

14. The microphone's wind protector, which eliminates wind noise etc., should be kept clean and changed when
necessary.
15. If the above mentioned recommendations are not followed, the protection and function afforded by the earmuffs
may be severly impaired.
4. STEREO BALANCE
The sound levels of the earmuffs can be set individually using the controls B-L (left) and B-R (right) (8). Use a small
screwdriver. To access the controls, remove the ear cushion and mounting plate from the right earmuff.

5. BATTERY REPLACEMENT

Unscrew the locking screw and open the battery lid. Remove the old batteries. Insert new 1.5 V AA-alkaline bat-
teries into the battery compartment (1) in accordance with the instructions inside the compartment. Ensure that
the battery lid is closed completely. It is time to change the batteries when the sound reproduction is weakened or
impaired. New alkaline batteries provide approx. 130 hours' operation.
6. ANTENNA
Bilsom ELECTO / ELECTO HF is equipped with a special antenna for best reception possibilities. In areas with limi-
ted head space, it is possible to attach the antenna to the headband, but this will somewhat reduce the reception
sensitivity, especially if you are listening to a distant or weak transmitter.
7. APPROVAL
Bilsom ELECTO / ELECTO HF is tested and approved in accordance with ANSI S3.19-1974 Standard at Howard
Leight Industries, San Diego, USA.
ELECTO Attenuation data according to American National Standards Institute Specifications ANSI S3.19-1974
(in passive mode, electronics switched off)
Frequency, Hz
Grand Mean attenuation, dB
Standard Deviation, dB
Real-Ear Protection, dB
ELECTO HF Attenuation data according to American National Standards Institute Specifications ANSI S3.19-1974
(in passive mode, electronics switched off)
Frequency, Hz
Grand Mean attenuation, dB
Standard Deviation, dB
Real-Ear Protection, dB
INFORMATION REQUIRED BY E.P .A.
The level of noise 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 protec-
tion 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
A.N.S.I. standards. Actual noise reduction can vary from laboratory results as labelled. Protection is maximized when: proper protector is
selected for application, a good training program is utilized and proper fitting techniques are followed.
125 250 500
13.6 19.3 29.4
2.4 2.3 1.9
8.8 14.7 25.6
CANADA Class B NRR 23
125 250 500
14.2 19.2 29.7
3.5 2.9 2.1
7.2 13.4 25.5
CANADA Class B NRR 21
1000 2000 3150
30.1 32.4 37.3
2.1 2.8 2.6
25.9 26.8 32.1
1000 2000 3150
26.9 28.8 35.4
3.1 2.3 2.5
20.7 24.2 30.4
68
4000 6300 8000
40.8 43.9 45.6
2.4 2.7 2.2
36.0 38.5 41.2
4000 6300 8000
41.0 43.8 44.9
2.3 2.4 2.3
36.4 39.0 40.3
NRR
23 dB
NRR
21 dB