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Sennheiser HMEC 460 - page 1
Instruction s for use HMEC 460 ...
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Sennheiser HMEC 460 - page 2
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Sennheiser HMEC 460 - page 3
1 Contents Safety instructions . ............... .............. .............. .............. .............. .............. ................. .... ........ ... 3 The HMEC 460 headset .............. .............. ............... .............. .............. .............. ................. ..... .... 5 Delivery includes ......................... . ...
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Sennheiser HMEC 460 - page 4
2 Care and maintenance .................. .............. .............. ................. .............. .............. ............... .. .. 23 Cleaning the headset .................................... ..................... .................... .................... .................... .......... 23 Replacing the wind shield ...................... ...
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Sennheiser HMEC 460 - page 5
3 Safety instructions y Please read these instructio ns carefully and complet ely before using the headset. y Make these instructions easily ac cessible to all users at all times. y Always include these inst ructions when passing the headse t on to third parties. y During flight operation, do not use the headset for telephone calls. y With the Nois ...
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Sennheiser HMEC 460 - page 6
4 y Protect the headset fr om humidity. Only us e a slightly damp cloth t o clean the headset. For information on how to clean th e headset, contact your Sennhei ser agent. Intended use of the headset Intended use includes: y having read and understood these i nstructions, especially the chapter “Safety instructions”. y using the headset in hel ...
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Sennheiser HMEC 460 - page 7
5 The HMEC 460 headset The HMEC 460 is a pilot headset with clos ed ear protector headphones and NoiseGard active noise compensation fo r use in helicopters, propel ler and turboprop a ircraft. The headset has the following features: y Flexible microphone boom with quick-fixing device y Lightweight y Comfortable leatherette earpads (replaceable) y ...
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Sennheiser HMEC 460 - page 8
6 y Adaption to the aircraf t intercom system vi a mono/stereo swi tch y Separate volume control for lef t and right channel y Boom switch for microphone boom lef t /right posi tion y With the NoiseGard active no ise compensation switched o ff, the headset can be used as a conventional headset y “Audio-In” signals from the 3.5 mm jack socket mu ...
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Sennheiser HMEC 460 - page 9
7 Delivery includes 1H M E C 4 6 0 h e a d s e t 1 audio cable (1.4 m ) with 2 x 2.5 mm ster eo jac k for compatib le mobile telephones 1 audio cable (1 .4 m) with 2 x 3.5 mm stereo jack for portable audio p layers 1 padded carry and storage bag for headset and accessor ies 1 wind shield for microphone 1 MZQ 2002-1 cable clip 1 instru ction manual ...
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Sennheiser HMEC 460 - page 10
8 Overview of operating elements Headset Operating control Headband padding Quick-fixing device Microphone Earpads Headband 5.25 mm jack pl ug (PJ-068 equivalent) XLR-3 plug ¼” (6.35 mm) jack plug 2.5 mm jack socket 3.5 mm jack socket Boom swi ...
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Sennheiser HMEC 460 - page 11
9 Connecting cable 1 5.25 mm jack plug (PJ-068 equivalent) for connecting the microphone 1¼ ” ( 6 . 3 5 m m ) j a c k p l u g for connecting the headphones 1X L R - 3 p l u g for connecting the power supply for the NoiseGard electronics Preparing the headset for use Connecting the headphones and the microphone T o connect the headset ...
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Sennheiser HMEC 460 - page 12
10 Powering the NoiseGard active noise compensation There are three options for powering th e NoiseGard active noise compensation: 1. Connection to the on-board DC power supply system (12–35 V DC ) 2. Connection to the cigarette ligth er socket (12 –35 V DC ) via an adapter cable (optional accessory) 3. Power supply via two AA batteries (not in ...
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Sennheiser HMEC 460 - page 13
11 Connecting the headset to the on -board DC power supply system T o power the NoiseGard electronics, you can connect the headset to the on-board DC power supply system (12–35 V DC ). 왘 H a v e a 3 - p ol e X L R s o c k e t ( o p t i o n a l a c c e s s o r i e s ) b e m o u n t e d b y a t e c h n i c i a n q u a l i f i e d to perform th is ...
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Sennheiser HMEC 460 - page 14
12 T o connect the headset via an adapter cable: 왘 Connect the XLR-3 plug of the headset to the XLR-3 socket of the adapter cable. 왘 Connect the plug or right-angled jack plug of the adapter cable to the ci garette lighter socket. Powering the NoiseGard electronics via two (recharg eable) batteries 왘 Open the cover of the battery compartm ...
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Sennheiser HMEC 460 - page 15
13 Activating the “auto shut-off” function The battery-saving “a uto shut-off” function automati cally switches the NoiseGard electronics off when the headset is disconnect ed from the intercom or when the aircraft avionics are switched off. The headset is delivered ex-works with the “auto shut-off” function deactivated . T o activate t ...
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Sennheiser HMEC 460 - page 16
14 Note: The latest information on cell phone compatib ility can be down loaded from the HMEC 460 product pa ge at www.sennheiser. com. 왘 Connect the audio cable to the 2.5 mm jack socket on the operating control and to the correspondi ng 2.5 mm jack socket on your mobile teleph one. You can adjust the volume of the mobile telephone via the h ...
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Sennheiser HMEC 460 - page 17
15 Connecting an addi tional audio player The operating control ha s a 3.5 mm jack so cket , allowing you to connect an additional audio player. The required audi o cable fitted with two 3.5 mm jack plugs is included. 왘 Connect the audio c able to the 3.5 mm jack socket on the operating co ntrol and to the corresponding 3.5 mm jack socket ...
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Sennheiser HMEC 460 - page 18
16 Adjusting the headset Adjusting the headband For good noise attenuation an d best possible comfort, the headband has to be adjusted to properly fit your head: Note: Make sure not to squeeze any connecti ng cable when adju sting the headband. Squeezing can damage the connecting cables. 왘 W ear the headset so that the headba nd runs over the to ...
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Sennheiser HMEC 460 - page 19
17 Rotating the microphone boom The microp hone boom can be worn on either side of the mout h. 왘 Loosen the quick-fixi ng device . 왘 Rotate the microphone boom by 180 °. 왘 Tighten the quick-fixing device . Changing the lef t and right stereo channel The operating control is fitted with a boom switch . The position “ R ” o ...
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Sennheiser HMEC 460 - page 20
18 Positioning the microphone towards the corner of the mouth The microphone boom is flexible, so you can position it individual ly. 왘 B e n d t h e m i c r o p h o n e b o o m s o t h a t t h e m i c r o p h o n e i s p l a c e d a t t h e c o r n e r o f t h e mouth. Maintain a distance of approx. 2 cm be tween microphone and mouth. ...
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Sennheiser HMEC 460 - page 21
19 Using the headset Switching between mono and stereo mode The operating control is fitted with a mono /stereo switch, which allows you to switch between mono and st ereo mode to sui t th e aircraft radio / audio pan el / intercom installatio n. If the audio panel, intercom system or radi o installation in you r aircraft is mono: 왘 Set the mono/ ...
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Sennheiser HMEC 460 - page 22
20 – Setting the mono/stereo switch to “ ” ( m o no ) w he n th e a ir c ra ft p a n el i s wi r e d a s a stereo system will result in you hearing only the lef t channe l of audio from the panel in both si des of the headse t. Depending on how the panel is confi gured you m a y n o t h e a r s o m e s o u n d s f r o m t h e p a n e l i ...
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Sennheiser HMEC 460 - page 23
21 Switching NoiseGard on/off 왘 Set the NoiseGard ON/OFF swit ch to the desired position: “ ON ” or “ OFF ”. With the NoiseGard active noise compensation s w it c he d o ff , th e h ea d se t c an b e us e d a s a conventional headset. Attaching the cable clip The headphone cable can be fixed by means of the cable clip. 왘 Guide the ...
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Sennheiser HMEC 460 - page 24
22 Folding up the headphones For easy and space-saving transportation, the ea rcups can be folded up and tucked between the headband. To fold up th e headphones: 왘 Grasp both earcups. 왘 Fold up the earcups and tuck them between the headband. To unfold t he headphones: 왘 Grasp both earcups. 왘 Pull the earcups down and aw ay from the headband ...
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Sennheiser HMEC 460 - page 25
23 Care and maintenance Cleaning the headset 왘 Use a sof t, slightly damp cloth to clean the hea dset from time to time. 왘 If the headset is very dirty, use a cloth dampened with mild, soapy water. Replacing the wind shield To replace a damaged wind shield , proceed as follows: 왘 Carefully pu ll the wind shi eld from the microphone. 왘 Slide ...
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Sennheiser HMEC 460 - page 26
24 Replacing the earpads T o rep lace a damaged earpad, proceed as follows: 왘 Hold the headset on the outside of the earcup and on the headband . 왘 Grasp the edge of the earpad behind the earcup as show n and peel it up and away from the earcup. 왘 Slide the new earpad onto the earcup. Repeat for the other earcup. Replacing the he adba ...
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Sennheiser HMEC 460 - page 27
25 If a problem occurs... Problem Possib le cau se Possible solution No active noise compensation The NoiseGard electronics are switched off. Set the NoiseGard ON/OFF switch to “ ON ”. The batteries/ rechargeable batteries are low. Check to see if the LED is lit yellow. If the LED is lit red, replace the batteries/rechargeable batteries. The XL ...
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Sennheiser HMEC 460 - page 28
26 If a problem occurs that is no t listed in the above table or if the problem cannot be solved with the proposed solutions, please contact your local Sennheiser agent for assistance. Active noise compensation but very low volume communication The volume is set too low. Increase the volume of your h eadset. The headphone jack plug is not connected ...
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Sennheiser HMEC 460 - page 29
27 Accessories/spare parts Product name Product description Cat. No. – Gel earpads 093807 – Spare earpads 517607 ACX-1 Adapter cable for po wering one headset ACX-1 ACX-11 Adapter cable for po wering two headsets ACX-11 ACX-2 Adapter cable with a right-angled ja ck plug for powering one headset ACX-2 ACX-22 Adapter cable with a right-an gled ja ...
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Sennheiser HMEC 460 - page 30
28 V aluable information on NoiseGard The NoiseGard principle One of the greatest st ress factors tod ay is noise. Rese arch has shown that no ise affects the nervous system, and can cause tiredness, poor concentration, irrit ability and tension. Of even greater concern is the pe rmanent damage to hearing that can result from noise at high levels. ...
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Sennheiser HMEC 460 - page 31
29 NoiseGard active noise compensation is achi eved by generating a si gnal identical in sound pressure level but exactly reversed in phase to the noise signal, the effect being that the out-of-phase signal ca ncels most of the noise signal. Active noise compensation is accomplished in the following m anner: Each earcup includes a microphone, a fee ...
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Sennheiser HMEC 460 - page 32
30 Specifications Headphones Microphone incl. preamplifier T ransducer principle dynamic Ear coupling circumaural, closed Frequency response 20–20,000 Hz Nominal impedance acti ve/passive 400/300 Ω , mono 600/600 Ω , stereo Attenuation (active/passive) > 25–40 dB Contact pressure approx. 8 N T ransducer principle pre-polarized condenser ...
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Sennheiser HMEC 460 - page 33
31 General data Connecting cable 1.5 m, single-sided We i gh t w i t h o u t c a b l e 3 7 0 g Power supply for NoiseGard 12–35 V DC Fuse 1.5 A fuse Connectors 5.25 mm jack plug (P J-068 equivalent) for microphone, ¼” (6.35 mm) jack plug for headphones, XLR-3 plug for NoiseGard Controls mono/stereo switch on/off swit ch for NoiseGa rd LED for ...
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Sennheiser HMEC 460 - page 34
32 Connector assignment XLR-3 plug 1 Power supply for NoiseGard (12–35 V DC+ ) 2 Ground 3 Not assigned! 5.25 mm jack plug (P J-068 equivalent) 1 Not assigned! 2 Microphone High 3 Microphone Low ¼” (6.35 mm) jack plug 1 Audio High left 2 Audio High right 3 Audio Low ...
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Sennheiser HMEC 460 - page 35
33 Manufacturer Declarations Wa r r a n t y The original Sennheiser product you have purchased is covered by a warranty of 10 years. The warranty period begins on the date of purch ase of brand new, unused products by the first end use r. Please retain your sales receipt (or your warranty certificate) as proof of purchase. Unless you submit proof o ...
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Sennheiser HMEC 460 - page 36
34 y any modification of S ennheiser products effected by you or a third party, unless Sennheiser has given its prior written consent to the nature and extent of the modification y faults due to force majeure y faults of which the purchaser was al ready aware at the time of purchase All warranty claims become void if the product is tampered with by ...
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Sennheiser HMEC 460 - page 37
Sennheiser electronic GmbH & Co. KG Am Labor 1 30900 Wedemark, Germany Phone +49 (5130) 600 0 Fax +49 (5130) 600 300 www.sennheiser.com Printed in Germany Publ. 08/07 515872 / A02 ...
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