SIMPLEX TYCO   4098-5601

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Simplex ® photoelectric and photoelectric-heat detectors provide many of the proven analog sensing features for applications where detectors are connected to conventional two wire or four wire initiating device circuits (IDCs). Each detector has an onboard microprocessor that evaluates its photoelectric light scattering chamber activity. The onboard microprocessor makes an intelligent decision based on light scattering history as to whether an alarm condition is present.

Simplex photoelectric-heat detectors combine photoelectric smoke detection technology and quick response, thermistor-based heat detection technology into a sophisticated, intelligent detector. The detector analyzes each of these activities and their combination to determine whether alarm conditions are present. As a result, this microprocessor based analog detection maintains response to conditions indicative of faster acting, hot flaming fires when compared to the response of either photoelectric smoke activity or thermal activity alone, while maintaining the established high level of immunity to false alarms and nuisance alarms that is inherent with the sensor operation.

False alarm resistant detection. An onboard microprocessor provides photoelectric detection with sensitivity drift compensation, using either photoelectric or photoelectric/heat trending analysis for alarm detection. If any of these alarm conditions are experienced, an alarm is initiated.

Simplex heat detectors use a fast response, thermistor based design to provide temperature sensing that quickly, accurately, and consistently identifies when fixed temperatures are exceeded. The fixed temperature sensing thermistor tracks the local ambient temperature. This eliminates the time required to melt a lead pellet or heat a bimetallic element as occurs in mechanical heat detector designs and provides the required heat detection for most applications.

Rate-of-rise (RoR) detection is determined by the comparison of two thermistor responses. By the combination of accurate thermistors with proper physical placement, this rate-of-rise detection design achieves a superior performance that is not normally available with mechanical detection. Rate-of-rise heat detection occurs at ≥ 20° F/min (11° C/ min). To minimize the possibility of false alarms, rate-of-rise detection is correlated to the ambient temperature and only activates at more than 90° F (32° C).

The detectors are packaged in a registered design housing that minimizes the visibility of the air intake louvers from the normal viewing locations and maintains a high performance smoke capture ability. Bases are available for remote alarm LED indicator connections and auxiliary relay outputs.

• Includes both rate-of-rise and fixed temperature thermistor-based detection.
• Detects abnormally high rates of rising temperatures and abnormally high temperatures respectively.

• Concentric baffle design enhances smoke capture by the direction of flow to the chamber.
• Entrance areas are minimally visible when ceiling mounted.
• Operation is for ceiling or wall mounting

• Indicates normal and alarm conditions
• Provides status during a magnetic functional test

• Initiates an alarm and verifies performance
• Identifies general sensitivity status with detector LED pulses
• With detectors categorized as normal or needing cleaning or other service, maintenance priorities can be more easily determined

• Bases for two wire or four wire operation
• Auxiliary alarm relay output
• Remote alarm LED indicator