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D181

Smoke Detector · Fire Detection Systems

Technical data from manufacturer or class sources · not yet verified by a person
1 kgWeight
24Voltage

The D181 1IR+UV flame detector employs a multi-spectrum design that combines Ultraviolet and Infrared radiation detection to identify both hydrocarbon and non-hydrocarbon fires while minimizing false alarms. This advanced optical flame detector is manufactured by Hochiki and is equipped with a robust 180-260 nanometers UV and 4.3-4.6 microns IR spectral sensitivity. It features an automatic self-test function to ensure continuous integrity of the optical path and electronic monitoring, enhancing reliability and fault reporting. The detector supports Alarm, Auxiliary, Fault relays, 0-20 mA analog, and RS485 outputs, storing up to 200 events and six FireGraphs in its FRMA memory. It is housed in a NEMA 4 (IP66/67) aluminum enclosure, making it suitable for a wide range of applications such as airports, manufacturing facilities, and power plants.

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

TypeFlame - UV/IR Multi-spectrum
Detection MethodUltraviolet + Infrared
CertificationUL Listed
Voltage24 VDC🔖
Power consumption (standby)60 mA @ 24 VDC🔖
Weight (kg)1.1 kg🔖
Field-of-view100 ° Horizontal and Vertical🔖
Humidity range5 to 95 % relative humidity, non-condensing🔖
Degree of protectionIP66/IP67🔖
📄
Download datasheet (PDF) (2756 KB)
Manufacturer documentation

Images from manufacturer documentation.

Photos, drawings and page previews from this model’s datasheet or catalog.

“D181 1IR+UV – MULTI-SPECTRUM FLAME DETECTOR The detectors are supplied with Alarm / Auxiliary / Fault relays, 0-20 mA analog and RS485 outputs. They can store 200 events and 6 FireGraphs in their…”

Hochiki D181 – Photo (Hochiki datasheet S. 1)
Photo · Hochiki datasheet · S. 1
Hochiki D181 – Photo (Hochiki datasheet S. 2)
Photo · Hochiki datasheet · S. 2
Hochiki D181 – Photo (Hochiki datasheet S. 1)
Photo · Hochiki datasheet · S. 1
Hochiki D181 – Drawing (Hochiki datasheet S. 1)
Drawing · Hochiki datasheet · S. 1
Hochiki D181 – Drawing (Hochiki datasheet S. 2)
Drawing · Hochiki datasheet · S. 2
Source: Hochiki D181 datasheet, p. 1
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