The operating time with batteries/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

lights up yellow: The battery capacity is

 

 

sufficient.

LED

lights up red:

The batteries are flat.

 

 

Replace the batteries.

Activating the “auto shut-off” function

The battery-saving “auto shut-off” function automatical- ly switches the NoiseGard™ electronics off when the headset is disconnected from the audio system or when the aircraft avionics are switched off. The headset is de- livered ex-works with the function deactivated. You can activate “auto shut-off” as follows:

￿Set the switch to the position ASO.

12

Page 14
Image 14
Sennheiser 502399, HMEC 26, 523983/A01 instruction manual Activating the auto shut-off function

502399, 523983/A01, HMEC 26 specifications

The Sennheiser 523983/A01,502399, HMEC 26 is a premium headset specifically designed for aviation communication, ensuring high-quality audio performance and comfort during long flights. This headset combines advanced technology with a durable construction, making it an excellent choice for pilots and aviation professionals.

One of the standout features of the HMEC 26 is its exceptional noise cancellation capabilities. It employs effective passive noise reduction, which significantly minimizes ambient noise in the cockpit. This allows users to focus on important communications without distractions, enhancing the overall flying experience.

Another critical characteristic of the HMEC 26 is its adjustable headband and soft ear cushions, designed for maximum comfort. The ear cups are enveloping, providing a snug fit that also helps with passive noise isolation. These features are essential for pilots who spend extended periods wearing headsets in a confined environment.

The headset incorporates Sennheiser's cutting-edge microphone technology, featuring a noise-canceling mic that ensures crystal-clear communication. This is crucial for pilots, as it enhances communication clarity, particularly in noisy aircraft environments. The mic is adjustable, allowing users to position it optimally for their voice, further improving audio quality.

Durability is a critical aspect of the HMEC 26's design. Made with high-quality materials, this headset is built to withstand the rigors of aviation use, ensuring longevity and reliability. The cables are rugged and tangle-free, reducing the likelihood of wear and tear over time.

In terms of versatility, the Sennheiser HMEC 26 is compatible with a wide range of aircraft and intercom systems, making it a suitable option for both general aviation and professional flight operations. Additionally, it comes with integrated connectors for easy plug and play functionality, enhancing convenience and usability.

Overall, the Sennheiser 523983/A01,502399, HMEC 26 headset represents a fusion of comfort, durability, and advanced audio technology. Its thoughtful design and high-performance features make it an ideal choice for anyone in the aviation industry seeking reliable communication and superior sound quality. By investing in a high-quality headset like the HMEC 26, pilots can ensure a safer and more enjoyable flying experience.