System Sensor Optical thermal multi criteria conventional detector

Mounting is on any of the 2020B, 2020BSD, 2020DB or 2020DBSD bases; detector height grows by 9.5mm with the 2020B and by 21mm with the 2020DB. The 2020LT hand held laser tool will trigger the head from several metres, and the head offers automatic drift compensation, a low current draw and easy maintenance. Only known compatible components must be used in a fire detection system; if in doubt, consult the fire control panel supplier or manufacturer.

The 2020PT is a multi-functional optical heat detector for conventional systems and part of the Vision range, its optical chamber and heat element driven by sophisticated algorithms for quick and accurate detection of fires. Dual approval spans EN54 Part 7 and EN54 Part 5: approval to EN54-7:2000 (Amendment 1) is joined by Class A1R classification under EN54 - 5:2000 (Amendment 1), with CEA 4021. It is LPCB Approved and CE Approved. The certificate number is 0832 0832-CPD-0182.

Power is 14 to 28VDC (Nominal 24VDC), with 60µA Typical @ 24VDC, 25°C quiescent, standby current held at 25ºC to a maximum of 75μA @ 24VDC and alarm current to a maximum of 70mA @ 28VDC. The alarm latches until reset by momentary power interruption, displayed by the integral LED and, if required, by an optional remote LED annunciator.

It works across an application temperature range of -30ºC to +70ºC and 5 to 95% Relative Humidity (non-condensing). For class A1R detectors the ambient operating temperature should be kept to a maximum of 45ºC; above that, unwanted alarm conditions may be triggered. The ABS head approximates RAL9016, spans 102mm, stands 40.5mm tall before the 9.5mm a standard base adds, and weighs 78g with 45g more for that base.

Terminals take 0.4mm2 to 2.0mm2 conductors and a range of detector bases is available. It is essential to ensure that only known compatible components are used in a fire detection system; if in doubt, consult the fire control panel supplier or manufacturer.