Sennheiser HMEC 26-2 User manual

Instruction manual

HMEC 26-2

Important safety information

HMEC 26-2 | 1

Important safety information

왘Please read this instruction manual carefully and

completely before using the product.

왘Always include this instruction manual when passing the

product on to third parties.

왘This instruction manual is also available on the Internet at

www.sennheiser-aviation.com or www.sennheiser.com.

Preventing health problems and accidents

왘Always maintain a distance of at least 3.94“ (10 cm)

between the ear cups and the cardiac pacemaker or

implanted defibrillator since the product generates

permanent magnetic fields.

왘Keep product, accessory and packaging parts out of reach

of children who could swallow smaller pieces.

왘Switch the product off after use to conserve battery

power. Remove the rechargeable batteries if the product

will not be used for extended periods of time.

왘If during flight operation you, as the pilot, operate your

connected device using the headset, this can limit your

attention. During flight operation, do not use the headset

for making phone calls or listening to music.

왘With the NoiseGardTM 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

Important safety information

2 | HMEC 26-2

NoiseGardTM 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.

왘The product is capable of producing sound pressure

exceeding 85 dB(A). In many countries 85 dB(A) is the

maximum legally permissible level for continuous noise

exposure during the working day. Do not listen at high

volume levels for long periods of time to prevent hearing

damage.

Preventing damage to the product and dysfunctions

왘Always keep the product dry and do not expose it to

extreme temperatures (hairdryer, heater, extended

exposure to sunlight, etc.) to avoid corrosion or

deformation.

왘Only clean the product with a soft, dry cloth.

왘Never repair or attempt to repair a defective product

yourself. Contact your Sennheiser partner or the

Sennheiser Service Department.

왘Only replace parts of the product whose replacement is

described in this manual. All other parts of the product

must be replaced by your Sennheiser partner.

Important safety information

HMEC 26-2 | 3

Intended use

Intended use of the product includes

• having read and understood this instruction manual,

especially the chapter “Important safety information” on

page 1,

• using the product within the operating conditions and

limitations described in this instruction manual.

“Improper use” means using the product other than as

described in this instruction manual, or under operating

conditions which differ from those described herein.

The HMEC 26-2 headset

4 | HMEC 26-2

The HMEC 26-2 headset

The HMEC 26-2 headset with NoiseGard™ professional 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

•NoiseGard™activenoisecompensation reduces ambient

noise by up to 18 dB – consequently the radio volume can

be decreased

• Lightweight

• Extremely comfortable to wear due to the patented two-

piece automatic headband and soft ear pads

• Peak level protection (cannot be switched off) safeguards

you from volume peaks above 110 dB

• “Flip-away” headphone allows single-sided listening

• Flexible microphone boom, can be worn on either left or

right-hand side

• Noise-compensating condenser microphone ensures

excellent speech transmission

• Single-sided cable, easy to replace

Package contents

HMEC 26-2 | 5

• With NoiseGard™ switched off, the headset can be used

as a conventional headset

• Power supply for NoiseGard™ from aircraft DC power

supply system (on suitably equipped aircraft) or

batteries/rechargeable batteries

• “Auto shut-off” extends battery life

• TalkThrough function (HMEC 26-2-T only)

• ETSO approval C139

• 5 year warranty

Package contents

1HMEC26-2headset

1 cable clip

1 wind and pop screen

1 pair of hygiene pads

1 audio cable with 2.5 mm jack plugs*

1 audio cable with 3.5 mm jack plugs*

1beltclip*

1 carry bag*

1 instruction manual

1 EASA Form 1

* not supplied with all product variants (see page 23)

Operation

6 | HMEC 26-2

Operation

Putting on the headset

When putting on the headset, the patented two-piece

headband adjusts automatically.

Flipping away one earcup

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

listening.

Operation

HMEC 26-2 | 7

Positioning the microphone

Bend the flexible microphone boom so that the microphone is

placed at the corner of the mouth. Maintain a distance of

2cm between microphone and mouth. Always use the

supplied wind and pop screen.

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.

Operation

8 | HMEC 26-2

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.

Adjusting the microphone sensitivity

Turn a small screwdriver in the direction of the arrow to

change the microphone sensitivity.

CAUTION

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!

왘Set the volume to a medium level. Make sure that

you can hear critical sounds such as warning

alarms.

–

The control units of the HMEC 26-2

HMEC 26-2 | 9

The control units of the HMEC 26-2

Control unit

1Volume controls

2LED

3NoiseGard™ ON/OFF switch

4Mono/stereo switch /

5BOOM switch L/R

63.5 mm jack socket

7Battery compartment

82.5 mm jack socket

Headset with

control unit I

Operating element

12345678

Cable -BV-K-2

Cable -B-K-2

Cable -B-KP-2

Cable -B-CP-2

Cable -V-KX-2

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