B15583/R0/204EN&205EN/U&C 8/6/06 1:54 PM Page 20

(The batteries will usually last over 4 years in standby under normal conditions. An undepleted battery can power a unit in alarm for over 100 hours. The life will be reduced if the unit regularly goes into alarm or if it is exposed to excessive temperatures for long periods).

Amber Fault Indicator

If the unit beeps and the amber light flashes simultaneously every 45 seconds the self-checking circuitry may have detected a fault. Follow the checklist to see if the unit is actually defective.

Checklist in the event of problems

Check the ‘pull’ tag has been removed to connect the batteries.

Check there are three batteries installed with the correct orientation in the battery compartment. (If the batteries are accessible remove one battery for 1 minute to reset the microcontroller in the unit).

If the problem persists replace the batteries if they are accessible.

If none of the above solve the problem the unit is probably defective and must be replaced. See “Getting the CO Alarm Serviced Page 28)”.

Testing with Carbon Monoxide

The unit can be tested with CO by using one of the kits that comes with CO either in a glass phial or aerosol can. Follow the instructions on the kit. It is best if possible to inject the CO gas into the gas entry holes, see Figure 5a. When it senses the CO, it flashes the red light (as per Table B) to confirm that is detecting CO gas.

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Ei Electronics Ei 205CEN, Ei 205EN Amber Fault Indicator, Checklist in the event of problems, Testing with Carbon Monoxide

Ei 204EN, Ei 205EN, Ei 205ENA, Ei 205CEN specifications

Ei Electronics has established a strong reputation in the field of home safety, particularly with its innovative range of smoke alarms and detectors. Among its flagship products are the Ei 205CEN, Ei 205EN, Ei 205ENA, and Ei 204EN models, each featuring advanced technologies designed to provide reliable and effective fire safety solutions.

The Ei 205CEN is a high-performance optical smoke alarm. Its unique design incorporates a state-of-the-art photoelectric sensing technology that enhances its ability to detect slow-burning fires, such as those caused by smoldering materials. This model features a sealed lithium battery that ensures longevity and requires minimal maintenance. Additionally, it is equipped with a test and hush button for user convenience.

The Ei 205EN model takes safety a step further, offering both smoke and carbon monoxide detection capabilities. This dual-functionality makes it an ideal choice for households concerned about the dangers posed by both smoke and toxic gases. The Ei 205EN utilizes the same photoelectric sensing technology as the Ei 205CEN, ensuring rapid response to threats. Moreover, it has an easy-to-read LED indicator that provides visual feedback on the status of the unit, enhancing user awareness.

Building on the features of the Ei 205EN, the Ei 205ENA includes an added benefit of an emergency escape light. This model provides not only smoke and carbon monoxide detection but also illumination during power outages, guiding residents to safety in critical situations. Its intelligent design ensures that the escape light activates automatically when the alarm is triggered, providing peace of mind during emergencies.

Lastly, the Ei 204EN model is designed primarily for smoke detection, utilizing an enhanced photoelectric sensor that minimizes false alarms while maintaining high sensitivity to legitimate threats. This model is particularly suited for areas where unwanted alarms can be disruptive, such as kitchens and living rooms.

Each model in the Ei Electronics lineup is engineered with user-friendly features including clear audio alerts, easy installation, and battery backup options. Collectively, these devices contribute to a comprehensive home safety system that prioritizes user protection and peace of mind. With a commitment to reliability and innovation, Ei Electronics continues to lead the way in smoke and carbon monoxide detection technology.