Sennheiser HMDC HMEC 300 400 Support and Manuals
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Popular Sennheiser HMDC HMEC 300 400 Manual Pages
Instructions for Use - Page 38
HMEC 300/302/305
305-C/306/322/400
HMDC 322
Instructions for use
Instructions for Use - Page 40
... 322, HMEC 400 and HMDC 322 are pilot headsets with NoiseGard™ turned on, you . If problems occur, contact your Sennheiser agent for assistance.
• Only replace parts of the headset must be replaced by your Sennheiser agent.
• Do not immerse the headset in water! For information on , typical aircraft sounds (for use in this manual. Safety...
Instructions for Use - Page 42
... Made in Germany, 5-year warranty (HMEC 400: 10-year warranty)
Product variants
HMEC 302 NoiseGard™ headset The HMEC 302 differs from the HMEC 300 in the following features: • Connection ... via PJ-068 plug
HMEC 305 NoiseGard™ headset The HMEC 305 differs from the HMEC 300 in the following features: • No Mono/Stereo switch • Connection of headphones, microphone...
Instructions for Use - Page 44
...™ headset The HMEC 400 differs from the HMEC 300 in the following features: • Stylish silver design • Leatherette ear cushions • Headband padding can be buttoned HMDC 322 NoiseGard™ headset The HMDC 322 differs from the HMEC 300 in the following features: • No Mono/Stereo switch • Coiled cable...
Instructions for Use - Page 46
...Replaceable gel ear cushions (Cat.
No. 83140)
BP-03 battery pack (except for HMEC 302, HMEC 305 and HMEC 306) Battery pack with XLR-3 socket for powering the NoiseGard™ electronics of the HMEC 300, HMEC 305-C, HMEC 322, HMEC 400... the HMEC 300, HMEC 305-C, HMEC 322, HMEC 400 and HMDC 322 headsets. Adapter cables (except for HMEC 302, HMEC 305 and HMEC 306) Sennheiser offers special adapter...
Instructions for Use - Page 47
... cable for HMEC 302
Connecting cable for HMEC 305
Connecting the headsets
Connecting cables for headsets HMEC 300 and HMEC 400 headsets: 1 ¼" (6.35 mm) stereo jack plug for connecting the headphones 1 PJ-068 jack plug for connecting the microphone 1 XLR-3 plug for connecting the power ...
Instructions for Use - Page 54
... of your intercom. ̈ Turn on the
connecting cable of the battery pack. ̈ HMEC 300 and HMEC 400 headsets: Connect the ¼" (6.35 mm) stereo jack plug for
the headphones and the PJ-068...microphone to ON. Attaching the battery pack to clothing The battery pack can be attached to clothing by setting the ON/OFF switch to the aircraft's XLR-5 socket. N ote: When using the battery pack,...
Instructions for Use - Page 55
... headset via a cigarette lighter adapter cable (except HMEC 302, HMEC 305 and HMEC 306)
Sennheiser offers special adapter cables with XLR-3 socket for connecting the NoiseGard™ electronics of the HMEC 300, HMEC 305-C, HMEC 322, HMEC 400 and HMDC 322 headsets to the on-board power supply via the cigarette lighter so...
Instructions for Use - Page 57
... microphone Relocating the microphone boom The microphone boom can be worn on either side of the mouth The HMEC 300, HMEC 302, HMEC 305, HMEC 305-C, HMEC 306, HMEC 322 and HMEC 400 headsets feature a flexible microphone boom. Maintain a distance of the mouth. Bend the microphone boom so that the microphone is...
Instructions for Use - Page 64
... noisy environment, the ATC signal level must be a ble to at high levels. To be set to understand radio traffic in many pilots became prematurely disabled or lost their pilot´s license....During takeoff and landing, the noise level is the permanent damage to address this problem. High frequencies are commonly used to hearing that noise affects the nervous system, and can result...
Instructions for Use - Page 65
... ne signal is amplified and the radio signal is added back in sound pressure level but enough noise still remains for the pilot to these problems, Sennheiser has developed an active noise compensation system - The remaining signal (noise) is then filtered and inverted and the radio signal is subtracted fro m it was...
Instructions for Use - Page 67
... the red LED is defective. ̈ Check the aircraft fuse. Problem
Clear communication but no active noise compensation
Possible cause and what to... ̈ Check to see if the ON/OFF switch is set to the power source.
If battery powered (except HMEC 302,...The batteries are not listed in the below table, please contact your Sennheiser agent.
In case of the power source. ̈ Check to see...
Instructions for Use - Page 68
... the headset is set too low. ̈ Check the volume setting of the headset.
You are receiving a mono source but the headset is set to stereo operation. ̈ Set the Mono/Stereo ...776; Check to "Stereo".
Problem Active noise compensation but very low volume communication
Active noise compensation but reduced intelligibility
Communications in one ear only (only HMEC 300, HMEC 302, HMEC 306...
Instructions for Use - Page 70
... wer supply fo r NoiseGa rd™ Current consumption Fuse Connecto rs
Con trols
Tempera ture range Operating time Battery pack
HMEC 300
Ȋ HMEC 302
Ȋ HMEC 306
Ȋ HMEC 400
1.5 m, unilatera l
370 g
12-35 V DC
27 mA (zero signal current), ma x. 80 mA
500 mA thermo fuse
6.35 mm stereo jack...
Instructions for Use - Page 222
KG 30900 Wedemark, Germany Phone +49 (5130) 600 0 Fax +49 (5130) 600 300 www.sennheiser.com
Printed in Germany
Publ. 04/04
86064 / A04 Sennheiser electronic GmbH & Co.
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