Ionisation Detectors use a low activity radioactive foil to detect fires by irradiating the air in the smoke chambers and causing a current flow. If smoke enters the chamber, the current flow is reduced leading to an alarm. Circuitry in the Ionisation Smoke Detector protects against transient levels of smoke above the normal threshold for up to 20 seconds.
Approvals: AS 7240.7-2004
Voltage | 9-33 VDC |
Quiescent Current | 20-45µA at 24 VDC |
Alarm Current | 52mA at 24 VDC |
Operating Temperature | -20°C to +60°C (no icing) |
Relative Humidity | 0% to 95% (non condensing) |
IP Rating | IP23D (EN60529) |
Size (inc Base) | 100mm Dia x 50mm H |
Weight (inc Base) | 153 grams |
4106-1003 | Series 65 Intergrating Ionisation Smoke Detector |