Sennheiser 502399 Manual de usuario
Instruction manual
HMEC 26
1
Safety instructions
yPlease read these instructions carefully and
completely before using the headset.
yMake these instructions easily accessible to all users
at all times.
yAlways include these instructions when passing the
headset on to third parties.
yDuring flight operation, do not use the headset for
telephone calls.
yWith the NoiseGard™ active noise compensation
switched on, typical aircraft sounds (for example,
those from engines, propellers, warning alarms, etc.)
may sound different to you. Before operating any
aircraft, make sure that, with NoiseGard™ switched
on, you can hear and recognize these sounds. Set the
volume to safe levels that do not interfere with your
ability to hear informational sounds and warning
alarms.
yThe headset is capable of producing sound pressure
levels exceeding 85 dB(A). In many countries 85 dB(A)
is the maximum legally permissible level for
continuous noise exposure during the working day.
Exposure to sounds of higher volume levels or for
longer durations can permanently damage your
hearing!
yNever repair or attempt to repair a defective headset
yourself. Contact your Sennheiser agent or the
Sennheiser Service Department.
2
yOnly replace those parts of the headset whose
replacement is described in this manual. All other
parts of the headset must be replaced by your
Sennheiser agent.
yProtect the headset from humidity. Use only a slightly
damp cloth to clean the headset. For information on
how to clean the headset, contact your Sennheiser
agent.
Intended use of the headset
Intended use includes:
• having read this instruction manual especially the
chapter “Safety instructions”.
• using the headset in jet aircraft and within the
operating conditions as described in this instruction
manual.
Improper use
Improper use means using the headset other than as
described in this instruction manual, or under operating
conditions which differ from those described herein.
3
The HMEC 26 headset
The HMEC 26 headset with NoiseGard™ active noise
compensation features dynamic, closed headphones. The
noise-compensating condenser microphone ensures
excellent speech transmission even in noisy
environments. Designed for use in aircraft cockpits.
Features
yNoiseGard™ active noise compensation reduces
ambient noise by up to 18 dB – consequently the radio
volume can be decreased
yLightweight
yExtremely comfortable to wear due to the patented
two-piece automatic headband and soft earpads
yPeak level protection (cannot be switched off)
safeguards you from volume peaks above 110 dB
y“Flip-away” headphone allows single-sided listening
yFlexible microphone boom, can be worn on either left
or right-hand side
yNoise-compensating condenser microphone ensures
excellent speech transmission
ySingle-sided cable, easy to replace
yWith NoiseGard™ switched off, the headset can be
used as a conventional headset
yPower supply for NoiseGard™ from aircraft DC power
supply system (on suitably equipped aircraft) or
batteries/rechargeable batteries
y“Auto shut-off” extends battery life
yTalkThrough function (HMEC 26-T only)
4
yETSO approval C57a/C58a
Delivery includes
y1 HMEC 26 headset
y1 cable clip
y1 wind and pop screen
y1 instruction manual
y1 carry bag
y1 EASA Form 1
Operation
Turning the microphone boom
The microphone boom can be rotated. This allows the
headset to be worn with the microphone boom positioned
on either the left or right-hand side of the head.
5
Putting on the headset
When putting on the headset, the patented two-piece
headband adjusts automatically.
Positioning the microphone
Bend the flexible microphone boom so that the micro-
phone is placed at the corner of the mouth. Maintain a
distance of approx. 2 cm between microphone and mouth.
Always use the supplied wind and pop screen.
6
Flipping away one earcup
The headset features a “flip-away” earcup for single-
sided listening.
Adjusting the volume directly on the audio system
Connect the headset to the corresponding sockets of your
audio system. Adjust the volume directly on the audio
system.
Hearing damage due to high volumes!
This headset is capable of producing high
sound pressure levels. Higher volumes or
longer durations can damage your hearing!
Set the volume to a medium level. Make sure
that you can hear critical sounds such as
warning alarms.
CAUTION!
7
Adjusting the microphone sensitivity
The microphone sensitivity has been factory pre-set to
80 mV/Pa as per RTCA DO-214. You can change the
microphone sensitivity by turning a small screwdriver in
the direction of the arrow.
+
–
8
The operating controls of the HMEC 26
Operating control I
Volume controls
LED
NoiseGard™ ON/OFF
switch
Mono/stereo switch
BOOM switch L/R
3.5 mm jack socket
Battery compartment
2.5 mm jack socket
Headset with
operating
control I
Operating element
HMEC26-BV-K xxxxxxxx
HMEC26-BV-KP xxxxxxxx
HMEC 26-BV-CP x x x x x
HMEC 26-B-K x x x
HMEC 26-B-CP x x x
HMEC26-V-KP xxxxx
HMEC26-V-RP xxxxx
HMEC 26-V-CP x x x x
HMEC26-V-KX xxxxx
Este manual sirve para los siguientes modelos
3
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