Finder FF O200AL Addressable Optical Smoke Detector

What Is the Finder FF O200 Optical Smoke Detector?

The Finder FF O200AL is a high-sensitivity optical smoke detector developed for use in addressable fire detection systems. It is designed to detect potential fire hazards in enclosed spaces at an early stage. Its integrated short-circuit isolator enhances loop safety and provides full compatibility and uninterrupted communication with addressable fire alarm control panels.

Operating Principle

The device features an optical sensing chamber that uses the light-scattering principle. The infrared LED emitter and photodiode receiver inside the chamber are positioned at an angle that prevents them from being in direct line of sight during normal operation. When smoke particles from a developing fire enter the sensing chamber, they scatter the infrared beam, directing light onto the photodiode sensor. When the processor confirms that the light intensity has exceeded the threshold, the detector enters the alarm state and sends a signal to the control panel together with its unique address.

The Role of Fire Detection Systems

As one of the fundamental components of early warning systems, optical smoke detectors detect fires at an early stage, particularly those that develop slowly and begin as smouldering fires. Detecting a fire before it reaches the flaming stage allows occupants to be evacuated safely, automatic fire suppression systems to be activated in good time, and potential loss of life and property to be prevented.

Why Choose It?

• Integrated Short-Circuit Isolator (Isolator): In the event of a short circuit on the loop, the rest of the loop continues to operate without interruption.

• Point Addressing: In the event of an alarm, the fire alarm control panel clearly identifies the specific location of the incident (room, floor or area).

• Advanced Dust and False Alarm Protection: Its specially designed optical chamber and software algorithms minimise false alarms caused by environmental factors.

• 360° Visible LED Indicator: The dual-sided LED design makes it easy to check the detector’s standby and alarm status from any direction.

Installation Details

The Finder FF O200AL can be easily fitted to compatible Finder addressable detector bases using a bayonet twist-lock mechanism. For ceiling installations, it is recommended that the detector be positioned away from direct airflow and ventilation ducts, and near the centre of the area. The base connections, with their plug-in terminals, allow for quick and secure installation.

Technical Specifications

• Operating Voltage: 15 - 30 V DC

• Quiescent Current: < 350 µA

• Alarm Current: 2.5 mA (LED active)

• Isolation: Integrated short-circuit isolator

• Detection Principle: Infrared optical light scattering

• Operating Temperature: -10°C to +55°C

• Humidity Tolerance: 95% RH (non-condensing)

• Protection Rating: IP30

• Housing Material: White flame-retardant ABS plastic

• Dimensions: 100 mm x 45 mm (excluding base)

• Compliance Standards: Complies with EN 54-7 and EN 54-17 standards

Applications

• Office complexes and administrative buildings

• Hotels and accommodation facilities

• Hospitals and healthcare facilities

• Schools, universities and educational institutions

• Shopping centres and shops

• Data centres and server rooms

Frequently Asked Questions

What do the “L” and isolator features in the Finder FF O200AL model do? The integrated isolator (short-circuit protection) disconnects the affected section if a cable short circuit occurs at any point on the addressable loop. This allows devices on the other side of the loop to continue communicating with the panel without interruption.

How should the detector be maintained and cleaned? Dust and dirt accumulated in the optical chamber should be removed periodically using compressed air or a vacuum cleaner. The panel can also be used to monitor a contamination warning when maintenance is due.