22051E (Photoelectric smoke detector without isolator) and 22051EI (Photoelectric smoke detector with isolator)
Catalogue number: 40202149 (22051E) and 40202150 (22051EI)
valiable on stock - September 2009

Photoelectric smoke detector The 22051E / 22051EI photoelectric smoke detector combines a state of the art sensing chamber with microprocessor control and sophisticated processing to eliminate transient noise conditions thereby giving reliable fire detection whilst minimising unwanted alarms. It is approved to a range of sensitivities, permitting the detector to be configured to match the application environment. The 22051E / 22051EI includes algorithms, which compensate for a slow build up of contamination such as dust, withinthe sensing chamber. Once the detector has reached its maximum compensation level, a signal can be sent to the control panel to indicate the need for maintenance.

Tested and approved to EN54-7: 2000 by LPCB

Specifications
Height: 52mm in B501AP Base
Weight: 97g excluding base