Simplex 4098-9755 Duct Sensor Housing

Simplex 4098-9755 duct sensor housing provides TrueAlarm operation for the detection of smoke in air conditioning or ventilating ducts. Also, sampling tubes are installed into the duct allowing air to be directed to the smoke sensor mounted in the housing. Besides, Monitoring each photoelectric sensor’s average value provides a software filtering process that compensates for environmental factors; and component aging, providing an accurate reference for evaluating new activity. The result is a significant reduction in the probability of false or nuisance alarms caused by shifts in sensitivity, either up or down. Furthermore, the alarm set point for each sensor comes determined at the control panel, selectable as the individual application requires.

In fact, each Simplex 4098-9755 sensor housing’s red status LED pulses to indicate communications with the panel. If the control panel determines that a sensor is in alarm, or that it is dirty or has some other type of trouble, the details are annunciated at the control panel as well as that sensor housing’s status LED will be turned on steadily. During a system alarm, the control panel will control the LEDs such that an LED indicating trouble will return to pulsing to help identify any alarmed sensors. (Remote Status/Alarm LEDs track the operation of the sensor housing LED.)

Features / Specifications

• UL listed to Standard 268A
• Clear cover allows visual inspection
• Test ports provide functional smoke testing access with a cover in place
• Mounts to rectangular ducts or round ducts; minimum size is 8” (203 mm) square or 18” (457 mm) diameter
• Magnetic test feature for alarm initiation at housing
• Storage Temperature Range: 0° F to 140° F (-18° C to 60° C)
• Humidity Range: 10% to 95% RH, non-condensing