Addressable Multi Sensor Photoelectric c/ w Heat ( 4098-9754 )

TrueAlarm photoelectric smoke sensing and heat sensing combined in one housing to provide: • Smoke activity accurately monitored by TrueAlarm photoelectric sensing technology* * • Thermal activity accurately monitored by TrueAlarm thermistor sensing technology • And TrueSense detection, a patented correlation of smoke activity and thermal activity providing intelligent fire detection earlier than with either activity alone For use with Simplex® 4100U control panel models via IDNet communications: • TrueAlarm analog sensor information is digitally communicated to the control panel via 4100U IDNet™ two-wire communications* * • Special point types allow the 4098-9754 multi-sensor to communicate smoke and heat analog sensing data using only one IDNet address • Individual sensor information is processed by the 4100U control panel to determine sensor status and to determine whether conditions are normal, off-normal, or alarm • Requires 4100U software revision 11 or higher with multi-point compatible IDNet transmission modules Alarms can be determined by either: • Smoke detection with selectable sensitivity from 0.2 to 3.7 % / ft obscuration • Heat detection selectable as fixed temperature or fixed with selectable rate-of-rise • TrueSense intelligent analysis of the combination of smoke and heat activity Additional design features: • Functional and architecturally styled enclosures for ceiling or wall mounting • Smoke sensor louver design that directs air flow to chamber enhancing smoke capture • Built-in magnetic test feature • Compatible with standard bases ( including relay control) , sounder bases, and isolator bases • Designed for EMI compatibility UL listed to Standard 268 TrueAlarm Multi-Sensor Description TrueAlarm multi-sensor model 4098-9754 combines the established performances of a TrueAlarm photoelectric smoke sensor with a fast-acting and accurate TrueAlarm thermal sensor to provide both features in a single sensor/ base assembly. Digital Communication of Analog Sensing. Analog information from each sensor is digitally communicated to the control panel where it is analyzed. Photoelectric sensor input is stored and tracked as an average value with an alarm or abnormal condition being determined by comparing the sensor’ s present value against its average value. Thermal data is processed to look for absolute or rate-of-rise temperature as desired. Intelligent Data Evaluation. Monitoring each photoelectric sensor’ s average value provides a software filtering process that compensates for environmental factors ( dust, dirt, etc.) 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. Status indications of dirty and excessively dirty are automatically generated allowing maintenance to be performed per device. Control Panel Selection. Peak activity per sensor is stored to assist in evaluating specific locations. The alarm set point for each TrueAlarm sensor is determined at the control panel, selectable as more or less sensitive as the individual application requires. Heat Sensing Details ( Continued) The control panel allows alarm selection to be per sensor as fixed temperature, or rate-of-rise temperature, or the combination of both. Temperature Detection. 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 is independent of rate-of-rise sensing and selectable to operate at 135° F ( 57.2° C) or 155° F ( 68° C) . In a slow developing fire, the temperature may not increase rapidly enough to operate the rate-of-rise feature. However, an alarm will be initiated when the temperature reaches its selected fixed temperature setting. Utility Temperature Monitoring. TrueAlarm heat sensors can be programmed as a utility device to monitor for temperature extremes in the range from 32° F to 122° F ( 0° C to 50° C) . This feature can provide freeze warnings or alert to HVAC system problems. TrueSense Detection Details Control Panel Sensor Analysis. Each multi-sensor’ s smoke and heat sensing element provides data for evaluation at the fire alarm control panel where four independent detection modes are evaluated. They are: • Fixed temperature heat detection • Rate-of-rise heat detection • TrueAlarm photoelectric smoke detection • And TrueSense correlation detection Comparing Photoelectric Activity and Thermal Activity. TrueSense analysis correlates both thermal activity and smoke activity at a single multi-sensor location using an extensively tested covariance relationship. As a result, TrueSense detection improves response to conditions indicative of faster acting, hot flaming fires when compared to the response of either photoelectric smoke activity or thermal activity alone. High Integrity Detection. TrueSense operation provides early fire detection and maintains the established high level of immunity to false alarms and nuisance alarms that is inherent with TrueAlarm sensor operation.