Checking RadioLINK Relay Back-Up Cells

in a particular installation. If this device does cause such interference, which can be verified by turning the device on and off (remove the mains supply and turn off back up power supply), the user is encouraged to eliminate the interference by one or more of the following measure:

(i)Re-orientate or re-locate the unit

(ii)Increase the distance between the Ei428 and the device being affected.

(iii)Connect the device being affected to a mains outlet on a circuit different from the one that supplies the Ei428.

(iv)Consult the supplier or an experienced radio/television technician.

5. Checking & Maintaining Your Smoke Alarm System

We recommend a weekly check is made of your alarm sys- tem. When checking the system also check the Ei428 as fol- lows:

(i)Check that the green mains power indicator is on (if this is off, check circuit breaker fuse, wiring etc.).

(ii)Check the relay switches and that the associated device operate when the system is in alarm (e.g. due to a smoke alarm test button being pressed).

6. Checking RadioLINK Relay Back-Up Cells

It is important to check that the rechargeable cells in the Ei428 Relay module are switched on, charged and capable of pow- ering the system.

(i)Check that the green light is on and that it is not flashing red once every 10 seconds. If it is, this indicates that either the rechargeable cells in the RadioLink Relay are not con- nected or depleted. Disconnect the mains supply. Remove the cover and gently slide the battery slide switch (see fig 1b) into the “on” position. If the green light is still changing to flashing red every 10 seconds, leave it for 2 hours to charge and then re-check it.

(ii)Disconnect the mains supply. The green light in the Ei428 will turn off. Check the radio link relay as described in section 2, item 13 above. Check the red light does not flash every 10 seconds.

(iii)If everything is satisfactory, re-connect the mains.

If the relay fails to operate or the red light continues to flash every 10 seconds (even after (i) above) then the unit is defec- tive and must be replaced (see getting your RadioLink Relay serviced as per section 7 below).

End of Life

After 10 years (see date on the side of the RadioLink Relay Base) the Ei428 Relay module must be replaced.

Ei428 specifications

The Ei Electronics Ei428 smoke alarm is a cutting-edge device designed for dependable fire safety in both residential and commercial environments. Featuring advanced technologies and a commitment to quality, the Ei428 offers a wide range of features that enhance its functionality and reliability.

One of the standout characteristics of the Ei428 is its dual-sensor technology. It employs both ionization and photoelectric sensing mechanisms to detect smoke effectively. The ionization sensor is particularly responsive to fast-flaming fires, while the photoelectric sensor is adept at identifying smoldering fires. This combination significantly increases the chances of early detection, thereby providing crucial time for occupants to respond during an emergency.

The Ei428 also incorporates a unique sealed lithium battery, which ensures a long life of up to 10 years. This battery eliminates the hassle of frequent battery replacements and delivers peace of mind to users, knowing that the device will remain functional throughout its lifespan. In addition, the built-in battery is designed to be tamper-proof, further enhancing the device's reliability.

Another remarkable feature of the Ei428 is its intelligent technology, which includes a self-test function. This automated testing feature regularly checks the sensor's functionality and alerts users to any issues, ensuring that the device remains in optimal working condition at all times. The alarm is also equipped with a loud 85 dB sounder, which provides audible alerts to make sure that occupants are aware of any potential fire danger, even in noisy environments.

In terms of design, the Ei428 has a compact and unobtrusive profile, allowing it to blend seamlessly into various decors. Its user-friendly interface includes a large test button for easy access during routine checks, promoting adherence to safety standards. The alarm's visual indicators provide additional information regarding the unit’s status, further simplifying the user's experience.

Overall, the Ei Electronics Ei428 smoke alarm stands as a testament to modern fire safety technology. It combines dual-sensor detection, long-lasting power, intelligent self-testing capabilities, and user-friendly design to deliver exceptional performance. Whether installed in homes, offices, or other spaces, the Ei428 is a vital asset in safeguarding lives against the threat of fire.