The HFPT-11 intelligent thermal detectors provide an advanced method of detection, address programming and supervision, combined with sophisticated control panel communication.The HFPT-11 detector uses a state-of-the- art thermistor providing 135 F fixed temperature and 15 per minute rate-of-rise alarm points.The user also has the option of disabling the rate-of-rise feature leaving just a fixed temperature sensor. The HFPT-11 intelligent thermal detector is compatible with the Device Program/Test Unit (DPU). The DPU is a compact, portable, menu-driven accessory which makes programming and testing detectors faster, easier and more reliable than other methods. The DPU eliminates the need for cumbersome, unreliable mechanical programming methods and reduces installation and service costs by electronically pro- gramming addresses and functionally testing the HFPT-11ís performance before the detector is installed. The HFPT-11 thermal detector operates with the FireFinder XLS and FS-250 families of control panels. The HFPT-11 intelligent thermal detector is Underwriters Laboratory and Underwriters Laboratory of Canada listed.

The HFPT-11 is a plug-in, two-wire thermal detector, compat- iblewithFireFinderXLSandFS-250familiesofcontrol panels. Each FPT-11 has microcomputer chip technology and highly stable solid state electronic circuitry. The FPT-11 utilizes a modern, accurate, shock-resistant thermistor to sense temperature changes. This elec- tronic sensing method virtually eliminates thermal lag associated with mechanical temperature sensing devices and provides almost instantaneous tempera- ture information to the control panel. The HFPT-11, in its default mode, is a combination 135 F fixed tempera- ture and 15 per minute, rate-of-rise detector. It can be programmed from the control panel as a fixed temperature detector without rate-of-rise, at the users option. The HFPT-11 detectorís microprocessor uses an integral EEPROM to store the detectorís address. Communications within the detector itself and be- tween the HFPT-11 and the control panel, or with the DPU, are supervised and safeguarded against disrup- tion by reliable, microprocessor based error checking routines. Additionally, the microprocessor supervises all EEPROM memory locations and provides a high degree of EEPROM failure fault tolerance. The HFPT-11 is listed as a self-testing device. The HFPT-11ís visible light emitting diode (LED) flashes green every 4 seconds to indicate it is communicating with the control panel and that it has passed its internalself-test. Should the detector sense a fault

panels. Each HFPT-11 has microcomputer chip technology and highly stable solid state electronic circuitry. The FPT-11 utilizes a modern, accurate, shock-resistant thermistor to sense temperature changes. This elec- tronic sensing method virtually eliminates thermal lag associated with mechanical temperature sensing devices and provides almost instantaneous tempera- ture information to the control panel. The HFPT-11, in its default mode, is a combination 135 F fixed tempera- ture and 15 per minute, rate-of-rise detector. It can be programmed from the control panel as a fixed temperature detector without rate-of-rise, at the users option. The HFPT-11 detectorís microprocessor uses an integral EEPROM to store the detectorís address. Communications within the detector itself and be- tween the HFPT-11 and the control panel, or with the DPU, are supervised and safeguarded against disrup- tion by reliable, microprocessor based error checking routines. Additionally, the microprocessor supervises all EEPROM memory locations and provides a high degree of EEPROM failure fault tolerance. The HFPT-11 is listed as a self-testing device. The HFPT-11ís visible light emitting diode (LED) flashes green