Finder FF O200L Addressable Optical Smoke Detector

What Is the Finder FF O200L Optical Smoke Detector?

The Finder FF O200L is an addressable optical smoke detector developed to detect potential fire hazards in enclosed spaces at an early stage. It is highly sensitive to slow-developing fires that produce visible smoke particles. Its addressable design maintains continuous communication with the fire alarm control panel and reports the precise location of the detected event to the control centre.

Operating Principle

The device features an optical sensing chamber that operates on the light-scattering principle. The infrared LED emitter and photodiode receiver in the sampling chamber are positioned so that they are not in direct line of sight under normal conditions. When smoke enters the chamber, the infrared beam is scattered by the smoke particles and falls onto the photodiode. When the level of scattered light exceeds the set threshold, the microcontroller confirms the condition and sends an alarm signal to the main control panel.

The Role of Fire Detection Systems

As one of the most critical components of early warning systems, optical smoke detectors respond during the smouldering stage, before a fire has developed into open flames. They provide reliable detection data to help protect life and property, trigger automatic fire suppression systems and initiate evacuation procedures in good time.

Why Choose It?

• Addressable Communication: When smoke is detected, the detector reports the precise location of the fire, such as a room or area, to the panel.

• False Alarm Protection: The advanced optical chamber design and dust-filtering mechanism minimise false alarms caused by dust and insects.

• 360-Degree Visibility: The dual LED indicator on the device makes its status easy to see from any direction.

• Contamination Compensation: It automatically adjusts its sensitivity to compensate for dust accumulating in the optical chamber over time, helping maintain stable operation.

Installation Details

The detector features a bayonet mechanism that locks easily into a compatible Finder detector base. For ceiling mounting, it is recommended to install it at central locations, away from obstructions and areas directly affected by airflow. The screw-terminal socket connections allow quick integration into loop wiring systems.

Technical Specifications

• Operating Voltage: 15 - 30 V DC

• Quiescent Current: < 300 µA

• Alarm Current: 2.5 mA (LED active)

• Detection Principle: Infrared Optical Scattering

• Sensitivity Level: Compliant with EN 54-7 Standards

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

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

• Protection Rating: IP30

• Housing Material: White ABS Plastic

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

Applications

• Offices and administrative buildings

• Hotel rooms and corridors

• Hospitals and care centres

• Educational institutions and schools

• Shopping centres and shops

• Data centres and computer rooms

Frequently Asked Questions

Is the Finder FF O200L detector affected by cigarette smoke? Optical detectors are designed to detect dense smoke particles. In small, ventilated areas, dense cigarette smoke blown directly beneath the detector may trigger an alarm; therefore, it is important to choose the installation location carefully.

How should the detector be maintained and cleaned? The detector’s optical chamber should be periodically cleared of dust using compressed air or suitable vacuum equipment. In persistently dusty environments, a contamination alert may be reported to the control panel.