These conventional fire control panels form part of a comprehensive range of conventional and intelligent fire detection equipment. Compatible products include heat and smoke detectors, sounders and manual call points. The M1, 2 and 4 conventional fire control panels provide one, two and four zones (respectively) of fire detection. All panels have been designed to offer high standards of performance, reliability and quantity and comply fully with BS5839, Part 4, 1988. Each panel provides two alarm warning circuits, a power supply and a battery charger. Three state detector condition monitoring enables both open and short circuit conditions to be monitored and indicated at the panel whilst responding to a fire signal at a different level. The system can maintain the operation of manual call points after the removal of detectors. The M1 includes an open collector type common fire output whilst the M2 and M4 feature common fire and fault voltage free, changeover contacts. An enabling security key switch prevents unauthorised operation of the panel controls.

• Robust, moulded housing and steel back box. • Three state detection with isolate and test facilities on 2 and 4 zone models. • Designed to meet BS5839, Part 4, 1988. • Two fully monitored sounder circuits. • Head removal monitoring with active end of line units included. • Fire and fault relays on 2 and 4 zone models. • Space for 72 hour stand-by batteries. • One cabinet size for all models.

mechanical Dimensions (HxWxD): 290 x 350 x 89 mm Weight: 4 Kg (9 lbs) Operating temperature: 0°C to +49°C Humidity: 10% to 93% non-condensing electrical Operating voltage: 230 Vac 50Hz Zone voltage: 17 to 28 Vdc Zone quiescent current: 2.4mA Zone End of Line Device: Active End of Line (supplied) Number of Sounder Circuits: 2 - monitored for open and short circuits. Sounder circuit voltage: 17 to 28 Vdc Max. panel sounder circuit current: Single zone: 300mA Two & four zone: 1A Common Fire Output (remote): M1 - open collector M2 - changeover contact M4 - changeover contact Auxillary input: Class change input