User manual SENNHEISER HMEC 250

[. . . ] Bedienungsanleitung Instruction Manual Notice d`emploi Istruzioni per l`uso Instrucciones de uso Gebruiksaanwijzing HMEC 250 Contents Important safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Delivery includes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 The HMEC 250 headset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 LED indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Preparing the headset for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Inserting the batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Connecting the headset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Connecting a mobile telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Connecting an additional audio player . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] For this purpose, the microphone plug must be connected to the aircraft radio/intercom. A suitable adapter for your mobile telephone with 2. 5 mm jack socket is available from your Sennheiser agent. Danger of accident due to reduced attention!Making telephone calls or operating the mobile telephone limits your attention and may cause accidents. During flight operation, do not use the headset for telephone calls!Note: For the latest list of compatible mobile telephones, please refer to the "Cell Phone Compatibility" section on our website at www. sennheiser. com. Search under "Products", "Aviation" and "more info . . . ". Connect the audio cable to the 2. 5 mm jack socket on the operating control and to the corresponding 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 be controlled via the headset's operating control. Switch NoiseGard 2. 0 on (see "Switching NoiseGard on/ off" on page 16). Audio from the mobile telephone and from the intercom are heard simultaneously through the headset. Operate your mobile telephone as usual and observe the manufacturers instructions. 10 Connecting an additional audio player The 3. 5 mm jack socket allows you to connect and listen to an additional audio player (e. g. accident due to reduced Listening to music or operating an audio device limits your attention and may cause accidents. During flight operation, do not use the headset for listening to additional audio sources!This headset is capable of producing high sound pressure levels. Higher volumes or longer durations can damage your hearing!Make sure that you can hear critical sounds such as warning alarms. Connect the audio cable to the 3. 5 mm jack socket on the operating control and to the corresponding jack socket on your audio player. Switch NoiseGard 2. 0 on (see "Switching NoiseGard on/ off" on page 16). Audio from the additional audio source and from the intercom are heard simultaneously through the headset. [. . . ] preamplifier Type Transducer principle MKE 46 pre-polarized condenser microphone, noise-compensating 350­6, 000 Hz 40 mV/Pa (factory pre-set) = 400 mV at 114 dB SPL (adjustable from 17­100 mV/Pa) 150­2, 200 8­16 V DC Frequency response Output voltage Terminating impedance Supply voltage Connector assignment ¼" (6. 35 mm) jack plug 5. 25 mm jack plug 1 Audio Hi left 2 Audio Hi right 3 Audio Lo 1 not assigned 2 Microphone Hi 3 Microphone Lo 22 Manufacturer declarations Warranty regulations The guarantee period for this Sennheiser product is 3 years from the date of purchase. Excluded are accessory items, rechargeable or disposable batteries that are delivered with the product; due to their characteristics these products have a shorter service life that is principally dependent on the individual frequency of use. The guarantee period starts from the date of original purchase. For this reason, we recommend that the sales receipt be retained as proof of purchase. [. . . ]