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12

The operating time with batteries/rechargeable batteries
is approx. 100 hours.

With NoiseGard™ switched on (see page 10),  the LED

provides information on the remaining battery/recharge-
able battery capacity.

LED

 lights up yellow: The battery capacity is suffi-

cient.

LED

 lights up red: 

The batteries are flat. Replace 
the batteries.

Activating the “auto shut-off” function

The battery-saving “auto shut-off” function automati-
cally switches the NoiseGard™ electronics off when the
headset is disconnected from the audio system or when
the aircraft avionics are switched off. The headset is
delivered ex-works with the “auto shut-off” function
deactivated. You can activate “auto shut-off” as follows:

Set the switch to the position 

ASO

.

Summary of Contents for HMEC 461

Page 1: ...HMEC 46 1 Instructions for use...

Page 2: ...und different to you Before operating any air craft 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 abil...

Page 3: ...on how to clean the headset contact your Sennheiser agent Intended use of the headset Intended use includes having read this instruction manual especially the chapter Safety instructions using the he...

Page 4: ...ar due to the patented two piece automatic headband and soft ear pads Peak level protection safeguards you from volume peaks above 110 dB Flip away headphone allows single sided listening Flexible mic...

Page 5: ...d and pop screen Instruction manual Carry bag EASA Form 1 Operation Turning the microphone boom The microphone boom can be rotated This allows the headset to be worn with the microphone boom posi tion...

Page 6: ...adset 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 dis tan...

Page 7: ...he corresponding sockets 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 v...

Page 8: ...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...

Page 9: ...switch Mono stereo switch BOOM switch L R 3 5 mm jack socket Battery compartment 2 5 mm jack socket Cable with operating control I Operating element B CP x x x B K x x x B KP x x x BV CP x x x x x BV...

Page 10: ...9 Operating control II LED NoiseGard ON OFF switch Cable with operating control II Operating element CP x x KP x x NP x x...

Page 11: ...page 12 or power supply via the aircraft DC power supply system OFF NoiseGard is switched off The LED is off Adjusting the volume The two slide volume controls allow you to adjust the volume for the...

Page 12: ...or right side of the mouth When the microphone boom is rotated to permit left or right side microphone orienta tion the BOOM switch allows you to correctly assign the audio channels L R to the appropr...

Page 13: ...ent LED lights up red The batteries are flat Replace the batteries Activating the auto shut off function The battery saving auto shut off function automati cally switches the NoiseGard electronics off...

Page 14: ...to the corre sponding jack socket on your mobile telephone You can adjust the volume of the mobile telephone via the headset s operating control However the functions of the mobile telephone cannot b...

Page 15: ...ng jack socket on your audio player Danger of accident due to reduced attention Listening to music or operating an audio device limits your attention and may cause accidents During flight operation do...

Page 16: ...be replaced from time to time Grasp the edge of the foam ear pad behind the ear cup as shown and peel it up and away from the ear cup Slide the new ear pad onto the earcup Repeat for the other ear cu...

Page 17: ...able NP Cat No 500855 Cable V RP Cat No 500853 Cable BV KP Cat No 504030 Cable B KP Cat No 504047 Cable V KX Cat No 502437 Audio cable length 0 6 m 2 x 3 5 mm stereo jack plug Cat No 520316 Cable for...

Page 18: ...502180 046 35 999 1191 x x x x x HMEC 46 1 BV K 500477 046 35 999 1171 x x x x x Cable BV KP 504030 999 2171 x x x x x x Cable B KP 504047 999 2191 x x x x x x Cable V KX 502437 999 4161 x x x x x x...

Page 19: ...1 kHz 1 V mono Active attenuation 15 dB 300 700 Hz THD 1 at 1 kHz 90 dB SPL Contact pressure approx 3 N Microphone incl preamplifier Type BKE 46 Transducer principle pre polarized condenser microphone...

Page 20: ...torage 55 C to 70 C Weight without cable approx 150 g Power supply for 2x 1 5 V AA alkaline battery NoiseGard IEC LR 6 or 2x 1 2 V AA rechargeable battery IEC LR 6 or 12 35 V DC via the aircraft DC po...

Page 21: ...4 5 1 2 3 4 5 Microphone Lo Power supply NoiseGardTM DC Solder side 1 Audio Hi 2 Audio Lo 3 not assigned 4 Microphone Lo 5 Microphone Hi 6 not assigned 7 DC 8 Power supply NoiseGardTM DC Solder side...

Page 22: ...Cable KP Cable B KP 1 Audio Hi left 1 NoiseGard DC 2 not assigned 2 Microphone Hi 3 Audio Lo DC 3 Microphone Lo DC Cable V KP Cable BV KP 1 Audio Hi left 1 NoiseGard DC 2 Audio Hi right 2 Microphone...

Page 23: ...r web site at www sennheiser com or contact your Sennheiser partner CE Declaration of Conformity This equipment is in compliance with the essen tial requirements and other relevant provisions of Direc...

Page 24: ...Sennheiser electronic GmbH Co KG 30900 Wedemark Germany www sennheiser com Printed in Germany Publ 08 10 515805 A01...

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