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4V SimplEx <br /> TrueAlarm Analog Sensors- Photoelectric and Heat; Standard Bases and Accessories <br /> 4098-9714 Photoelectric Sensor <br /> TrueAlarm photoelectric sensors use a stable,pulsed infrared LED light source and a silicon photodiode receiver to provide consistent and accurate <br /> low power smoke sensing.Seven levels of sensitivity are available for each individual sensor,ranging from 0.2%to 3.7%per foot of smoke obscuration. <br /> Sensitivities of 0.2%,0.5%,and 1%are for special applications in clean areas.Standard sensitivities are 1.5%,2.0%,2.5%,3.0%,and 3.7%.Application <br /> type and sensitivity are selected and then monitored at the fire alarm control panel.* <br /> The sensor head design provides 360'smoke entry for optimum response to smoke from any direction.Due to its photoelectric operation,air velocity <br /> is not normally a factor,except for impact on area smoke flow. <br /> -7/8"(124 mm <br /> II'*--LED status indicator <br /> 2-1/8" <br /> (54 mm) <br /> Figure 4: 4098-9714 Photoelectric Sensor with Base <br /> 4098-9733 and 4098-9734 Heat Sensors <br /> TrueAlarm heat sensors are self-restoring and provide rate compensated,fixed temperature sensing,selectable with or without rate-of-rise <br /> temperature sensing.Due to its small thermal mass,the sensor accurately and quickly measures the local temperature for analysis at the fire alarm <br /> control panel. <br /> Rate-of-rise temperature detection is selectable at the control panel for either 15'F(8.3°C)or 20°F(11.1°C)per minute.Fixed temperature sensing <br /> is independent of rate-of-rise sensing and programmable to operate at 135°F(57.2°C)or 155'F(68'Q.In a slow developing fire,the temperature <br /> may not increase rapidly enough to operate the rate-of-rise feature.However,an alarm will be initiated when the temperature reaches its rated fixed <br /> temperature setting. <br /> TrueAlarm heat sensors can be programmed as a utility device to monitor for temperature extremes in the range from 32°F to 155°F(0°C to 68°Q. <br /> This feature can provide freeze warnings or alert to HVAC system problems.Refer to specific panels for availability. <br /> 4-7/8"(124 mm) -7/8"(124 mm) <br /> T - <br /> —LED status indicator LED status indicator <br /> 2-3/8" 2-3/8" <br /> (60 mm) (60 mm) <br /> Figure 5: 4098-9733 Heat Sensor with Base Figure 6: 4098-9734 High Temperature Heat Sensor with Base <br /> WARNING:In most fires,hazardous levels of smoke and toxic gas can build up before a heat detection device would initiate an alarm.In cases where <br /> Life Safety is a factor,the use of smoke detection is highly recommended. <br /> Application Reference <br /> Sensor locations should be determined only after careful consideration of the physical layout and contents of the area to be protected.Refer to NFPA <br /> 72,the National Fire Alarm and Signaling Code.On smooth ceilings,smoke sensor spacing of 30 ft(9.1 m)may be used as a guide.* <br /> *For detailed application information including sensitivity selection,refer to Installation Instructions 574-709. <br /> TrueAlarm Analog Sensing Product Selection Chart <br /> Table 2:TrueAlarm Sensor Bases(for use with Sensors 4098-9714 and 4098-9733) <br /> SKU Color Description Compatibility Mounting Requirements <br />—�4098-9792 White 4"octagonal or 4"square box, <br /> 4098-9776 Black Standard Sensor Base No options 1-112"min.depth;or single gang <br /> box,2"min.depth <br /> Page 4 S4098-0019 Rev.25 01/2020 <br />