Sennheiser HMEC 46 Bedienungsanleitung

HMEC 46

Bedienungsanleitung

Instructions for use

Notice d’emploi

Istruzioni per l’uso

Instrucciones para el uso

Gebruiksaanwijzing

Book_51xxxx_1106_SP6.book Seite 1 Mittwoch, 13. Juni 2007 3:07 15

Book_51xxxx_1106_SP6.book Seite 2 Mittwoch, 13. Juni 2007 3:07 15

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.

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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 these instructions especially the chapter

“Safety instructions”.

• use of the headset in jet aircraft and within the

operating conditions as described in these

instructions.

Improper use

Improper use means use of the headset other than as

described in these instructions or use under operating

conditions different from those described in these

instructions.

Book_51xxxx_1106_SP6.book Seite 2 Mittwoch, 13. Juni 2007 3:07 15

The HMEC 46 headset

The HMEC 46 headset with NoiseGard™ active noise com-

pensation features dynamic, open headphones. The

noise-compensating condenser microphone ensures ex-

cellent speech transmission even in noisy environments.

Designed for use in aircraft cockpits.

Features

yNoiseGard™ active noise compensation reduces ambi-

ent noise by approx. 10 dB – consequently the radio

volume can be decreased

yExtremely lightweight

yExtremely comfortable to wear due to the patented

two-piece automatic headband and soft ear pads

yPeak level protection 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

yETSO/TSO approval C57a/C58a

Book_51xxxx_1106_SP6.book Seite 3 Mittwoch, 13. Juni 2007 3:07 15

Delivery includes

yHMEC 46 headset

yCable clip

yWind and pop screen

yInstructions for use

yCarry bag

yEASA 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.

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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.

Book_51xxxx_1106_SP6.book Seite 5 Mittwoch, 13. Juni 2007 3:07 15

Flipping away one earcup

The headset features a “flip-away” earcup for single-

sided listening.

Adjusting the volume directly on the intercom

Connect the headset to the corresponding sockets of your

intercom. Adjust the volume directly on the intercom.

Hearing damage due to high volumes!

This headset is capable of producing high

sound pressure levels. Higher volumes or lon-

ger durations can damage your hearing!

Set the volume to a medium level. Make sure

that you can hear critical sounds such as war-

ning alarms.

CAUTION!

Book_51xxxx_1106_SP6.book Seite 6 Mittwoch, 13. Juni 2007 3:07 15

Adjusting the microphone sensitivity

The microphone sensitivity has been factory pre-set to

40 mV/Pa as per RTCA DO-214. You can change the

microphone sensitivity by turning a small screwdriver in

the direction of the arrow.

–

Book_51xxxx_1106_SP6.book Seite 7 Mittwoch, 13. Juni 2007 3:07 15

The operating controls of the HMEC 46

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



HMEC46-BV-K xxxxxxxx

HMEC 46-BV-CP x x x x x

HMEC 46-B-K x x x

HMEC 46-B-CP x x x

HMEC46-V-KP xxxxx

HMEC46-V-RP xxxxx

HMEC 46-V-CP x x x x





























Book_51xxxx_1106_SP6.book Seite 8 Mittwoch, 13. Juni 2007 3:07 15

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