What is a Photoelectric Smoke detector?

There are two methods of smoke detection on the market. These are: photoelectric and ionization, and each is effective for specific situations. Photoelectric detectors tend to respond quickest in smoldering, smoky environments, while ionization detectors respond faster to flaming, spreading fires.

Many fire safety companies and OSHA recommend a combination smoke detector that employs both methods.

What is a Photoelectric Smoke Detector?

Photoelectric smoke detectors operate with a light source and a sensor. When smoke particles pass into the light path of the detection device, the light is scattered and then detected by the light sensor. With this interruption, the device sounds an alarm that alerts occupants to the presence of smoke.

A photoelectric detector usually acts more quickly since fires often begin in a smoldering state before bursting into flames. Early on, the source emits larger particles that can be detected by the photoelectric sensors sooner than other methods. Early detection is critical in saving lives and immediate response.

Notifier Advanced Multi-Criteria Fire Detector

Notifier by Honeywell incorporates four systems for early fire detection. In addition to a photoelectric smoke detector, the Multi Criterial Fire Detector adds thermal, carbon monoxide and infrared monitoring which detects every element of a developing fire at the earliest stage.

Smoke Alarm Placement and Maintenance

OSHA recommends that all photoelectric and other smoke detection devices be kept separate from areas of contact or corrosion. These are highly sensitive and abuse can cause the system to become unreliable.

Qualified smoke alarm system maintenance specialists should perform regular preventative maintenance on sensitive photoelectric smoke detectors. Over time, ambient dust, grime and foreign material, will accumulate on the sensors and light source causing the equipment to malfunction or become inoperable. In Chicago, contact High Rise Security Systems to discuss ongoing maintenance of your smoke detection systems.