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.
