Page 3 - Safety instructions
1 Safety instructions y Please read these instructions carefully andcompletely before using the headset. y Make these instructions easily accessible to all usersat all times. y Always include these instructions when passing theheadset on to third parties. y During flight operation, do not use the he...
Page 4 - Intended use of the headset; Intended use includes:; Improper use
2 y Only replace those parts of the headset whosereplacement is described in this manual. All otherparts of the headset must be replaced by yourSennheiser agent. y Protect the headset from humidity. Use only a slightlydamp cloth to clean the headset. For information onhow to clean the headset, conta...
Page 5 - Lightweight
3 The HMEC 26 headset The HMEC 26 headset with NoiseGard™ active noisecompensation features dynamic, closed headphones. Thenoise-compensating condenser microphone ensuresexcellent speech transmission even in noisyenvironments. Designed for use in aircraft cockpits. Features y NoiseGard™ active noise...
Page 6 - Delivery includes; cable clip; Operation; Turning the microphone boom
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 Turning the microphone boom The microphone boom can be rotated. This allows theheadset to be worn with the microphone boom positione...
Page 9 - Adjusting the microphone sensitivity
7 Adjusting the microphone sensitivity The microphone sensitivity has been factory pre-set to80 mV/Pa as per RTCA DO-214. You can change themicrophone sensitivity by turning a small screwdriver inthe direction of the arrow. + –
Page 10 - The operating controls of the HMEC 26; Operating control; Volume controls; Operating element
8 The operating controls of the HMEC 26 Operating control I Volume controls 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 HMEC 26-BV-K x x x x x x x x HMEC 26-BV-KP x x x x ...
Page 11 - LED; II
9 Operating control 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
Page 12 - Using the headset; Switching NoiseGardTM on/off
10 Using the headset Switching NoiseGard™ on/off The NoiseGard™ ON/OFF switch allows you to switch the NoiseGard™ active noise compensation on or off. WithNoiseGard™ switched off, the headset can be used as aconventional headset. 왘 Set the NoiseGard™ ON/OFF switch to the desired position: ON: NoiseG...
Page 14 - Activating the “auto shut-off” function; Set the switch to the position ASO.
12 The operating time with batteries/rechargeable batteriesis approx. 60 hours. With NoiseGard™ switched on (see page 10), the LED provides information on the remaining battery/rechargeable battery capacity. LED lights up yellow: The battery capacity is sufficient. LED lights up red: The batteries a...
Page 18 - Care and maintenance; Cleaning the headset; Grasp the edge of the earpad and pull sharply.
16 Care and maintenance Cleaning the headset Use a soft, slightly damp cloth to clean the headset fromtime to time. If the headset is very dirty, use a clothdampened with mild, soapy water. Do not use anysolvents or cleansing agents. Replacing the earpads For reasons of hygiene, the earpads should b...
Page 19 - Accessories and spare parts; Headband padding, 1 pair
17 Accessories and spare parts By changing the cables, you can simply retrofit differentoperating controls (see page 8 and 9) or connectors (seepage 19) to your headset. y Cable -CP Cat. No. 500852 y Cable -V-CP Cat. No. 500846 y Cable -B-CP Cat. No. 500837 y Cable -BV-CP Cat. No. 500838 y Cable -KP...
Page 20 - Cable clip HZC 08; Cable clips
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)
Page 21 - Product variants
19 Product variants Model Cat. No.Part Number HMEC 26* 502397026-35 HMEC 26-T* 502404026-C5 HMEC 26-CP 502402026-35-999-3211 x x x x HMEC 26-V-CP 502405026-35-999-3251 x x x x HMEC 26-B-CP 502398026-35-999-2291 x x x x x HMEC 26-BV-CP 502400 026-35-999-2281 x x x x x HMEC 26-KP 502403026-35-999-3111...
Page 22 - Specifications; Headphones
20 Specifications Headphones Transducer principle dynamic, closed Ear coupling supra-aural Frequency response 20–14,000 Hz Impedance 600 Ω mono/1.200 Ω stereo Characteristic SPL 92 dB SPL at 1 kHz, 1 mW, mono 95 dB SPL at 1 kHz, 1 V Max. SPL 120 dB SPL at 1 kHz Active noise compensation ≥ 18 dB (100...
Page 23 - Connector assignment
21 General data Temperature range operation: –15 °C to +55 °Cstorage: –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) or2x 1.2 V AA rechargeable battery (IEC LR 6)with approx. 60 hrs operating timeor12–35 V DC via aircraft DC po...
Page 26 - Manufacturer Declarations; Warranty
24 Manufacturer Declarations Warranty Sennheiser electronic GmbH & Co. KG gives a warranty of5 years on this product. For the current warranty conditions, please visit our website at www.sennheiser.com or contact your Sennheiserpartner. CE Declaration of Conformity This equipment is in complianc...
Page 28 - Printed in Germany
Sennheiser electronic GmbH & Co. KG Printed in Germany Am Labor 1, 30900 Wedemark, Germany Publ. 01/09 www.sennheiser.com 523983/A01