4-Wire Photoelectric Smoke Detector with Isolated Temperature Sensor, Built-in Siren and Relay, i3 Series

4-Wire Photoelectric Smoke Detector with Isolated Temperature Sensor, Built-in Siren and Relay, i3 Series

System Sensor i3 Series Detectors

The i3™ Series smoke detectors with siren and/or relay represent a significant technological advancement in conventional detection, boasting rich features for simple installation, instant inspection, and intelligence to reject false alarms.
 
All i3 Series detectors are equipped with automatic soiling sensitivity compensation and mathematical curve matching algorithms. These algorithms minimize the incidence of false alarms caused by short-term effects such as electromagnetic induction and/or radio frequency interference, and by long-term effects such as dust accumulation. When connected to the 2WMOD2 Loop Test and Maintenance Module or an i3 protocol-compatible panel (i3 Ready™), 2-wire i3 detectors will generate a remote maintenance signal when a detector enters a cleaning and/or freeze-fault condition when the ambient temperature surrounding the detector drops below 5°C. The sensitivity level of any i3 detector is measured using the SENSRDR inspection module, which displays the numerical sensitivity value expressed as percentage of obscuration per foot in just a few seconds.

• Photoelectric sensor
• Voltage: 12/24 Vdc 
• Form C Relay at 2A @ 30 Vac/Vdc 
• Local audible alarm of 85 dB
• Temperature sensor fixed at 57.2°C 
• Passive state current: 50 μA
• Separate smoke and temperature alarm outputs
• Alarm Current: 130 mA
• Sensitivity: 2.5%/foot
• Service temperature: 0º to 37.8º C
• Humidity: 0 to 95% non-condensing
• Dimensions: 134 mm diameter, 51 mm height

Important note: In the 4WITAR-B model, the photoelectric smoke sensor is isolated from the fixed-temperature thermal sensor. It provides a local, self-resetting audible alarm upon smoke detection that does not alarm the panel or activate the relay. Only the fixed-temperature sensor causes the 4WITAR-B to initiate an alarm at the panel and activate the relay.