Sennheiser HME 26-2 User manual

Instruction manual

HME 26-2

Important safety instructions

HME 26-2 | 1

Important safety instructions

• Please read this instruction manual carefully and

completely before using the headset.

• Make this instruction manual easily accessible to all users

at all times.

• Always include this instruction manual when passing the

product on to third parties.

• The product 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!

• Never repair or attempt to repair a defective product

yourself. Contact your Sennheiser agent or the

Sennheiser Service Department.

• Only replace those parts of the product whose

replacement is described in this manual. All other parts

must be replaced by your Sennheiser agent.

• Protect the product from wetness. Use only a slightly

damp cloth for cleaning. For information on how to clean

the product, contact your Sennheiser agent.

Important safety instructions

2 | HME 26-2

Intended use

Intended use includes:

• having read and this instruction manual, especially the

chapter “Important safety instructions”.

• using the product within the operating conditions and

limitations described in this instruction manual.

Improper use

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 HME 26-2 headset

HME 26-2 | 3

The HME 26-2 headset

The HME 26-2 headset features dynamic, closed head-

phones. The noise-compensating condenser microphone en-

sures excellent speech transmission even in noisy environ-

ments. The headset has been designed for use in jet aircraft

cockpits.

Features

• Lightweight

• Extremely comfortable to wear due to the patented two-

piece automatic headband and soft ear pads

• Peak level protection (switchable) 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

• ETSO approval C139

Package contents

4 | HME 26-2

Package contents

1HME26-2headset

1 cable clip

1 wind and pop screen

1 instruction manual

1carrybag

1EASAForm1

Operation

Turning the microphone boom

The microphone boom can be rotated, allowing the micro-

phone to be worn on the left or right-hand side of the head.

Operation

HME 26-2 | 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 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.

Operation

6 | HME 26-2

Flipping away one ear cup

The headset’s “flip-away” ear cup can be flipped backwards

by approx. 45°, allowing for singled-sided listening.

Adjusting the volume on the audio system

Connect the headset to the corresponding sockets of your

audio system.

왘Adjust the volume directly on the audio system.

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 environmental sounds.

ca. 45°

Operation

HME 26-2 | 7

Adjusting the microphone sensitivity

The microphone sensitivity has been factory pre-set to

80 mV/Pa as per RTCA DO-214.

왘Turn a small screwdriver in the direction of the arrow to

change the microphone sensitivity.

Switching the p

eak level protection

on and off

The peak level protection safeguards your ears from volume

peaks above 110 dB, which can be transmitted via the audio

system or radio equipment.

왘Slide the switch for the peak level protection to the

desired position by using a pointed object:

–

Operation

8 | HME 26-2

Attaching the cable clip

The cable clip allows you to attach the headphone cable to

your clothing so that the cable doesn’t hinder or distract you.

왘Loop the cable through the clip so that the headphone

cable doesn‘t hinder you.

Position Function

up Peak level protection is switched off.

down Peak level protection is switched on

(factory default setting).

Care and maintenance

HME 26-2 | 9

Care and maintenance

Cleaning and maintaining the headset

왘Only use a soft, dry cloth to clean the product.

Replacing the ear pads

For reasons of hygiene, you should replace the ear pads at

least once annually.

왘Grasp the edge of the ear pad and pull sharply.

왘Attach the new ear pad to the ear cup by pressing firmly

around the ear pad until you hear all 12 latches lock into

place.

CAUTION

Liquids can damage the product!

Liquids entering the product can short-circuit the electronics

or damage the mechanics. Solvents or cleansing agents can

damage the surface of the product.

왘Keep all liquids far away from the product.

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