Apollo 55000-773MAR Marine DIN-Rail Zone Monitor

Apollo 55000-773MAR Marine DIN-Rail Zone Monitor

The Marine DIN–Rail Zone Monitor powers and controls the operation of a zone of up to 20 conventional fire detectors from a loop of XP95 addressable detectors and ancillary devices.

Operation:

This unit needs to be installed in a suitable enclosure and secured using end stops, part no 27447-528 or equivalent. The Marine DIN–Rail zone monitor is factory pre-set to return an analogue value of 16 when all detectors on the zone are in the quiescent state and 64 when a detector changes to the alarm state.

The unit latches in the alarm state. A 5.1K end-of-line resistor is used to monitor cables for open and short-circuit faults. Alternatively, an active end-of-line monitor may be used in conjunction with diode bases and a capacitor of up to 50F fitted at the unit wiring terminals. In either case an analogue value of 4 is transmitted during open or short-circuit faults.

The Marine DIN–Rail zone monitor is fitted with a bi-directional short-circuit isolator and will be unaffected by loop short-circuits on either loop input or output.

Key Features:

• Loop-powered
• Visible short-circuit
• LED Built in isolator