User manual SENNHEISER HMEC 372

[. . . ] HMEC 350/352/355 355-C/356/372/450 HMDC 372 Instructions for use Contents Safety tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Headset features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Product variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Delivery includes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Pull the middle part of the microphone boom towards the mouth so that the distance between microphone and mouth is approx. Tilt the microphone for final positioning. 21 Using the headsets Turning NoiseGardTM on/off With the NoiseGardTM active noise compensation turned off, the headset can be used as a conventional headset. Turn on the NoiseGardTM active noise compensation by setting the ON/OFF switch to "ON". When using the BP-04 battery pack, set the NoiseGardTM ON/OFF switch to "ON" and use the ON/OFF switch on the battery pack. Mono/Stereo selection (except HMEC 355, HMEC 355-C, HMEC 372 and HMDC 372) In general, you'll receive a mono sound source so that the Mono/Stereo switch can remain set to "Mono". When using a stereo intercom system, set the Mono/Stereo switch to "Stereo". Adjusting the volume Exposure to loud sounds can cause hearing damage!Make sure that you can hear critical sounds such as warning alarms. 22 Attaching the cable clip The headphone cable can be fixed by means of the cable clip. Guide the headphone cable through the metal cable clip as shown in the illustration on the left. Attach the cable clip to your clothing and then loop the cable through the clip so that the headphone cable doesn`t disturb you. Folding up the headphones For easy and space-saving transportation, the earcups can be folded up and tucked between the headband. Unfold the headphones by grasping both earcups and pulling them down and away from the headband. 23 Spare parts The following spare parts are available from your Sennheiser agent: · · · · · · · Wind screen for MKE 45-1 Ear cushions for all variants except HMEC 450 Ear cushions for HMEC 450 Soft ear cushions for HMEC 450 Headband padding MZQ 2002-1 cable clip Carry and storage bag with shoulder strap Cat. 078366 Replacing the wind screen If the wind screen shows signs of wear such as tears or holes, replace the wind screen. Gently slide-on the new wind screen and ensure that it fits securely over the microphone. Replacing the ear cushions Replace the ear cushions if they are damaged. Grasp behind the ear cushions and pull them up and away from the earcups. For best results replace the ear cushions after 100 hours of use or two years. 24 Replacing the headband padding Replace the headband padding if it is damaged. Pull the Ziploc type fastening strips of the headband padding apart and remove the worn headband padding. Pull the two edges of the headband padding together so that the fastening strips slightly overlap. Replacing the headband padding of the HMEC 450 headset Replace the headband padding if it is damaged. Open the snaps on the headband padding and remove the worn headband padding. Pull the two edges of the headband padding together and close the snaps. 25 Valuable information on NoiseGardTM The NoiseGardTM principle One of the greatest stress factors today is noise. Research has shown that noise affects the nervous system, and can cause tiredness, poor concentration, irritability and tension. [. . . ] 8­25 mA, as per RTCA/DO 214) 30 HMEC 350 General data Connecting cable Weight without cable Power supply for NoiseGardTM Current consumption Fuse Connectors 1. 5 m, unilateral 370 g 12­35 V DC HMEC 352 HMEC 356 HMEC 450 27 mA (zero signal current), max. 80 mA 500 mA thermo fuse 6. 35 mm stereo jack plug for headphones, PJ-068 jack plug for microphone, XLR-3 for NoiseGardTM 6. 35 mm stereo jack plug 6-pin Redel plug for 6. 35 mm stereo jack plug for headphones, headphones, microphone for headphones, PJ-068 jack plug for and NoiseGardTM PJ-068 jack plug for microphone and microphone, NoiseGardTM XLR-3 for NoiseGardTM Controls Mono/Stereo switch On/off switch for NoiseGardTM Volume control for headphones Operation Storage ­15 °C . . . +55 °C Temperature range Operating time of battery pack (except HMEC 352 and HMEC 356) with batteries (four 1. 5 V AA size alkaline-manganese batteries): approx. 15 hours 31 Technical data HMEC 355 Headphones Transducer principle Ear coupling Frequency response Nominal impedance active/passive Attenuation (active and passive) Max. 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