HOCHIKI DCD-135/190 Heat Detector
The DCD-135/-190 fixed temperature/rate-of-rise heat detector are suited for installation where high heat output fires are expected or in areas where ambient conditions would not allow use of other detection methods. Heat detectors are intended for protection of property. Do not rely on heat detectors for life safety protection. Where life safety is a concern, smoke detectors must also be used. A UL listed fire alarm panel must electronically supervise the DCD-135/-190 heat detectors. All NS conventional devices are mechanically compatible with Hochiki America HSB, HSC and YBA type bases. Please check individual panel listings for appropriate listed bases.
Choice of fixed temperature/rate-of-rise 135°F or 190°F heat detector • UL Listed spacing up to 60′ by 60′ • 2 or 4 wire base compatibility, relay bases available • Highly stable operation, RF/Transient protection • Low standby current, 35μA nominal • Two built-in power/alarm LED’s for 360° viewing Fully electronic operation • Power/alarm LED’s confirm detector status • Compatible with Hochiki SLR-24V and SIJ-24 detectors and their bases
The DCD-135/-190 fixed temperature/rate-of-rise heat detectors are suited to detect in the presence of slow or fast rising temperatures due to burning combustibles. The construction of these models incorporate a thermistor heat element protected from damage by the built-in, durable plastic guard. These electronic heat detectors incorporate two power/alarm LED’s for 360° indication of status. In standby condition the power LED’s flash Green. In an alarm condition the LED’s latch on Red. The DCD-135/-190 electronic heat detection circuitry performs the same function as a Mechanical Device but with Electronic Precision. If the heat rise is less than 12°/minute the DCD will not alarm until it reaches its alarm temperature (135° or 190° ± 7.5°F). If the heat rise is greater than 12°/minute the DCD will alarm immediately giving an early warning signal and latching the Red alarm LED’s on.
SPECIFICATIONS: Response Temperature 135° ± 7.5°F Temperature 190° ± 7.5°F Supply Voltage 17.7 – 30.0 VDC (4 Wire) Supervisory Current 40μA @ 24 VDC Surge Current 160μA max. @ 24 VDC Alarm Current 150mA max. @ 24 VDC Ambient Temperature 32°F to 120°F (0°C to 49°C) Contact Rating N/O Contacts 150mA max. @ 24 V Color & Case Material Bone PC/ABS blend Mounting Refer to the NS Conventional Detector Base Data Sheet