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Sennheiser 502399 - page 1
Instruction m anual HMEC 26 ...
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Sennheiser 502399 - page 2
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Sennheiser 502399 - page 3
1 Safety instructions y Please read these inst ructions carefully and completely before us ing the headset. y Make these instructions easi ly accessible to al l users at all times. y Always include these instru ctions when passing the headset on to third parti es. y During flight operat ion, do not use the headset for telephone calls. y With the No ...
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Sennheiser 502399 - page 4
2 y Only replace those parts of the headset whose replacement is d escribed in th is manual. All other p a r t s o f t h e h e a d s e t m u s t b e r e p l a c e d b y y o u r Sennheiser agent. y Protect the headset fr om hu midity. Use only a slightly damp cloth to clean the headset. For information on how to clean the headset, contact yo ur Senn ...
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Sennheiser 502399 - page 5
3 The HMEC 26 headset The HMEC 26 headset with NoiseGard™ active noise compensation features dynami c, closed headphones. The noise-compensating condenser m icrophone ensures excellent speech transmission ev en in noisy environments. Designed for use in aircraft cockpits. Featur es y NoiseGard™ active noise compensatio n reduces ambient noise b ...
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Sennheiser 502399 - page 6
4 y ETSO approval C57a/C58a Delivery includes y 1 HMEC 26 headset y 1 cable clip y 1 wind and pop screen y 1 instruction manual y 1 carry bag y 1 EASA Form 1 Operation T urning t he microphone boom T h e m i c r o p h o n e b o o m c a n b e r o t a t e d . T h i s a l l o w s t h e headset to be worn with the microphone boom positioned on either t ...
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Sennheiser 502399 - page 7
5 Putting on the headset When putting on the headse t, the patented two-piece headband adjust s au tomatically. Positioning the microphone Bend the flexible microphone boom so that the micro- 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 m o u t h . M a i n t a i n a distance of approx. 2 cm between microphone and mouth. Always use the ...
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Sennheiser 502399 - page 8
6 Flipping away one earcu p The headset features a “fl ip-away” earcup for single- sided listening. Adjusting the volum e directly on the audio system Connect the headset to the co rresponding sockets of your audio system. Ad just the volume directl y on the audio system. Hearing damage due to high volumes! This headset is capable of produc ing ...
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Sennheiser 502399 - page 9
7 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 b y turning a small scr ewdriver in the direction of the arrow. + – ...
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Sennheiser 502399 - page 10
8 The operating controls of the HMEC 26 Operating control I Volume co ntrols LED NoiseGard™ ON/OFF switch Mono/stereo switch BOOM switch L/R 3.5 mm jack socket Battery compartment 2.5 mm jack socket Headset with operating control I Operating element H M E C 2 6 - B V - K xxxxxxxx H M E C 2 ...
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Sennheiser 502399 - page 11
9 Operating con trol II LED NoiseGard™ ON/OFF switch Headset with operating control II Operating element HMEC 26-CP x x HMEC 26-KP x x HMEC 26-NP x x ...
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Sennheiser 502399 - page 12
10 Using the headset Switching N oiseGard™ on/o ff The NoiseGard™ ON/OFF switch allow s you to swit ch the NoiseGard™ active noise compe nsation on or off. With NoiseGard™ switched off, th e headset ca n be used as a conventional headset. 왘 Set the NoiseGard™ ON/OFF switch to the desired position: ON: NoiseGard™ is switched on ...
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Sennheiser 502399 - page 13
11 Switching between mo no and stereo mode The mono/stere o switch allows you to switch between mono ( ) and stereo ( ) mode, depending on the audio system. 왘 Set the mono/stereo switch to the desired position: mono ( ) or stereo ( ). Changing the le f t and right s tereo channel The position “R” or “L” of ...
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Sennheiser 502399 - page 14
12 The operating time with batt eries/rechargeable batteries is approx. 60 hours. With NoiseGard™ switched on (see page 10), the LED provides information on the remaining battery/ rechargeable battery capacity. LED ligh ts up yell ow: The batte ry capacit y is sufficient. LED lights up red: The batteries are flat . Replace the batteri ...
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Sennheiser 502399 - page 15
13 Switching the TalkThrough function on/off (HMEC 26-T only) The headset provides excell ent attenuation of ambient noise. In order to allow you to commu nicate undisturbed with your surroundings while wear ing the headset, the HMEC 26-T features a Ta lkThrough function. 왘 Press the T alkThr ough button to switch the T a lkThrough function o ...
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Sennheiser 502399 - page 16
14 Connecting a mobile telephone The 2.5 mm jack socket allows you to connect a mobile telephone. For this purpose, the NoiseGard™ active noise compensation must be swit ched on and the microphone connector must be connected to the aircraft radio/audio. A suitable adapte r for your mobile telephone with 2.5 mm jack socket is avai lable from y ...
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Sennheiser 502399 - page 17
15 Connecting an additional audio pl ayer The 3.5 mm jack socket allows you to connect and listen to an audio player (not supplied) through the headset. For this purpose, the Noise Gard™ acti ve noise compensation must be switched on. 왘 Connect the audio cable to the 3.5 mm jack socket on the operating control I and to the corresponding ...
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Sennheiser 502399 - page 18
16 Care and maintenance Cleaning the headset Use a sof t, slightly damp cloth to clean the headset from time to time. If the headset is very dirty, use a cloth dampened with mild, soa py water. Do not u se any solvents or cleansing agents. Replacing the earpads For reasons of hygiene, the earpads should be rep laced from time to time. 왘 Grasp the ...
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Sennheiser 502399 - page 19
17 Accessories and spare part s By changing the cables, you ca n simply retrofit different operating controls (see page 8 and 9) or connectors (see page 19) to your headse t. y Cable -CP Cat. No. 5008 52 y Cable -V-CP Cat. No. 5008 46 y Cable -B-CP Cat. No. 5008 37 y Cable -BV-CP Cat. No. 5008 38 y Cable -KP Cat. No. 5008 42 y Cable -V-KP Cat. No. ...
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Sennheiser 502399 - page 20
18 y Cable clip MZQ 2002 Cat. No. 044740 y Cable clip HZC 08 Cat. No. 525787 Cable clips HZC 08 MZQ 2002 (for round or flat cable) (for round cable only) ...
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Sennheiser 502399 - page 21
19 Product variants Model Cat. No. Part Number HMEC 26* 502397 026-35 HMEC 26-T* 502404 026-C5 HMEC 26-CP 502402 026-35-999-3211 x x x x HMEC 26-V-CP 502405 026-35-999-3251 x x x x HMEC 26-B-CP 5 02398 026-35-999-2291 xx xxx HMEC 26-BV-CP 502400 026-35-999-2281 xx xxx HMEC 26-KP 502403 026-35-999-3111 x x x x x HME ...
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Sennheiser 502399 - page 22
20 Specifications Headphones Transducer principle dynamic, closed Ear coupling supra-aural Frequency response 20–14,000 Hz Impedance 600 Ω mono/1.2 00 Ω stereo Characte ristic SP L 92 dB SPL at 1 kHz, 1 mW, mon o 95 dB SPL at 1 kHz, 1 V Max. SPL 120 dB SPL at 1 kHz Active noise compensation ≥ 18 dB (100 – 300 Hz) THD < 1 % at 1 kHz, 95 ...
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Sennheiser 502399 - page 23
21 General da ta Temperature range operation: –15 °C to +55 °C storage: –55 °C to +70 °C Weight without cable approx. 210 g Power supply for 2x 1.5 V AA alkaline battery NoiseGard ™ (IEC LR 6) or 2x 1.2 V AA rechargeable battery (I EC LR 6) with approx. 60 hrs operating time or 12–35 V DC via aircraft DC power supply system (on suitably ...
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Sennheiser 502399 - page 24
22 HMEC 26-CP , -V-CP , -B-CP , -BV-CP HMEC 26-NP HMEC 26-V-RP Solder side 1 2 3 Audio Hi Audio Lo / DC– Microphone Hi 4 5 1 2 3 4 5 Microphone Lo NoiseGard TM (DC+) Solder side 1 Audio Hi 2 Audio Lo 3 not assigned 4 Microphone Lo 5 Microphone Hi 6 not assigned 7 DC– 8 NoiseGard TM (DC+) Solder side 1 NoiseGard TM (DC+) 2 Audio Lo / DC– 3 Aud ...
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Sennheiser 502399 - page 25
23 HMEC 26-KP, -V-KP, -BV-KP, -B-K, -BV-K HMEC 26-KP 1 Audio Hi 1 NoiseGard™ (DC+) 2 not assigned 2 Microphone Hi 3 Audio Lo / DC– 3 Microphone Lo HMEC 26-V-KP / -BV-KP 1 Audio Hi l eft 1 NoiseGard™ (DC+) 2 Audio Hi right 2 Microphone Hi 3 Audio Lo / DC– 3 Microphone Lo / DC– HMEC 26-B-K 1 Audio Hi 1 not assigned 2 not assigned 2 Micropho ...
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Sennheiser 502399 - page 26
24 Manufacturer Declarations W arranty Sennheiser electronic GmbH & Co. KG gives a warranty of 5 years on this product. For the current warr anty conditions, please visi t our web site at www.sennheiser.com or contact your Sennheiser partner. CE Declaration of Conformity This equipment is in com pliance with the essen- tial requirements and oth ...
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Sennheiser 502399 - page 27
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Sennheiser 502399 - page 28
Sennheiser electronic GmbH & Co. KG Printed in Germany Am Labor 1, 30900 W edemark, Germany Publ. 01/09 www.sennheiser.com 523983/A01 ...
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