93-520-20 Issue 3.3 Page 57 of 60 CirrusPro Engineer’s Manual
7.0 Detector Specification
Physical Data varies with model and are not given here
Supply Voltage: 19 - 27VDC UL 1481 Approved.
Humidity: 10 - 95%RH, non-condensing
Temperature: 0 – 37.8°C
IP Rating: IP30
Cable Access: 20mm knock
Cable Termination: Screw terminal blocks
(0.2 - 2.5mm2, 30 - 12AWG)
Pipe ID: 19 to 25mm (preferred OD 25mm)
Alarm Indications: Pre-alarm, Fire 1, Fire 2, Fire 3.
Other Indications: Supply Healthy, General Fault.
Sensitivity Range: 20,000 particles per cc to 3 million particles per cc
Sensitivity ranges: 10 programmable.
Programmable Inputs: 4 monitored inputs for Isolate, Silence, reset and ‘Sensitivity Change’ feature.
Open circuit voltage: ~16V, Max applied voltage: 30V
Max closed circuit resistance: 1500 Ohms
Output Relays: 4 Programmable Fire Relays
1 Fault Relay
4 Additional / Pipe on the expansion board for sampling systems
All Rated: 0.3 A at 125 VAC; 1 A at 30 VDC Rated carry current 1 A
Max. switching voltage 125 VAC, 60 VDC Max. switching current 1 A
Auxiliary (VS) supply: 27V, Current limited to 300mA
Power fault input: Fault level < 2.5V
Event Log: 128 events stored on FIFO basis
Data Retention: 10 day historical graph.
Sensitivity Settings: 7 day programmable settings with 3 time zones per day.
AlgoTec Environmental learning, interactive decision making algorithm software to
continuously monitor background particles levels and enable optimum
detector sensitivity and alarm thresholds.
Airflow Monitoring: ‘High Airflow’ and ‘Low Airflow’ fault monitoring.
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