Troubleshooting RF Link | Ei Electronics Ei428 guide

3. Troubleshooting RF Link

If, when checking the radio link interconnection, some of the Ei428 RadioLINK Relays do not respond to the button test, then:

(i)Ensure you have held the smoke/heat alarm test button down until the light has come on twice, for 3.5 seconds each time (this could take up to 20 seconds).

(ii)Convert one of the RadioLink units (an Ei168 or Ei405) that is centrally located within the house in to a “Repeater” (see relevant user instructions).

(iii)Re-locate/rotate the units. There are a number of reasons why the radio link signals may not reach all the RadioLink Relays in your system (see section on “Limitations of Radio Frequency Signals”). Try rotating the unit or re-locating the units (e.g. move them away from metal surfaces or wiring) as this can significantly improve signal reception.

Rotating and/or relocating the units may move them out of the range of existing units even though they may have already been house coded correctly in the system. It is important therefore to check that all detectors/relays are communicating in their final installed positions. If units are rotated and/or resited, we recommend that all units are returned to the fac- tory settings (press and hold the house code switch on for about 6 seconds until the relevant light comes on and then flashes slowly). Then house code all units again in their final positions as indicated above. The radio link interconnection should then be re-checked again.

4. Limitations of Radio Communications

Ei Electronics radio communication systems are very reliable and are tested to high standards. However, due to their low transmitting power and limited range (required by regulatory bodies) there are some limitations to be considered.

(i)Radio equipment, such as the Ei428 RadioLink Relay, should be tested regularly at least weekly. This is to deter- mine whether there are sources of interference preventing communication. The radio paths may be disrupted by moving furniture or renovations, and so regular testing protects against these and other faults.

(ii)Receivers may be blocked by radio signals occurring on or near their operating frequencies, regardless of the house coding.

The Ei428 Relay has been tested to EN 300 220-1 V1.3.1 (2000-09) in accordance with the requirements of En 300 220V1.1.1 (2000-09). These tests are designed to provide reasonable protection against harmful interference in residen- tial installations. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful inter- ference to radio and television reception.

However, there is no guarantee that interference will not occur

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.