Sennheiser HMD 46 User manual

HME 46

Air Traffic Control

Instructions for use

HMD 46

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.

yThe headset is capable of producing sound pressure

levels exceeding 85 dB(A). Inmany 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.

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 within the operating conditions as

described in these instructions.

Improper use

Improper use means use of the headset other than as de-

scribed in these instructions or use under operating con-

ditions different from those described in these instruc-

tions.

HMD 46 / HME 46

The HMD 46 / HME 46 headset features dynamic, open

headphones. The noise-compensating microphone

ensures excellent speech transmission even in noisy

environments. Designed for air traffic control, intercom

systems and other communication purposes.

Features

yExtremely lightweight

yExtremely comfortable to wear due to the patented

two-piece automatic headband and soft ear pads

yActiveGard™ safeguards you from the effects of an

acoustic burst (except HMD 46-31 and HME 46-31)

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

yFlexible microphone boom, can be worn on either left

or right-hand side

yNoise-compensating microphone ensures excellent

speech transmission

ySingle-sided cable, easy to exchange

yPTT button integrated in the cable (see “Product vari-

ants” on page 10)

Delivery includes

yHMD 46 / HME 46 headset

yCable clip

yWind and pop screen

yInstructions for use

Operation

Turning the microphone boom

The microphone boom can be rotated. This allows the

headset to beworn with themicrophone boom positioned

on either the left or right-hand side of the head.

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.

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 correspondingsockets 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!

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.

–

Care and maintenance

Cleaning the headset

Use a soft, slightly damp cloth to clean the headset from

time to time. If the headset is very dirty, use a cloth

dampened with mild, soapy water.

Replacing the earpads

For reasons of hygiene, the black earpads should be

replaced from time to time. Grasp the edge of the foam

earpad behind the earcup as shown and peel it up and

away from the earcup. Slide the new earpad onto the

earcup. Repeat for the other earcup.

Danger of short-circuit due to the ingress of

water!

Water entering the housing of the headset

can cause a short-circuit and damage the

electronics.

Use only a slightly damp cloth to clean the

headset. Do not use any solvents or cleansing

agents.

CAUTION!

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