The AD 338 â 2HL photoelectric smoke / thermal detector incorporates an optical chamber and a thermal element, which in turn are continually monitored by an on board processor by using algorithms developed specifically for the unit. An alarm signal is only enabled in the detector once the processor is satisfied that an incipient fire has been detected. By using a combination of inputs, the incidence of nuisance alarms is reduced while at the same time, the response time to an actual fire is also improved.âDrift Compensationâ algorithms are one of the key features of the AD 338 â 2HL detector. These algorithms ensure a consistent alarm sensitivity threshold for periods between service intervals. This provides the user with both a reduction in the frequency of nuisance alarms and maintenance savings by extending the period before cleaning of the detector chamber is required.
standard Features
- Low profile design
- Low current draw
- Product Overview
- Wide operating voltage 8 to 30V DC
- Bi-colour LED detector status indicator
- Automatic drift Compensation
- R e m ote alarm test feature
- Easy Maintenance
- Range of det e c t or bases available
- R e m ote LED Option
- App r o ved to EN54 â 5:2000 (Amendment 1)
- Ext e n d ed warranty
- En 54 â 5:2000 (Amendment
