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Fagus GreCon, Inc.648 Griffith Rd. Suite A
Charlotte, NC 28217U.S.A.

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Hot Particle Detector HPD 1/8

Detection of hot particles and glowing embers

Technical Specification

In a brief

Highly sensitive detector to detect hot and glowing particles in pneumatic and mechanical conveying facilities. Insensitive to daylight and artificial light.


Supply voltage range: 18 V to 22 V DC
Current drawn at 20 V: 10 mA ± 1 mA
Spectral response: 3500 nm to 5100 nm
Visual angle: 100°, can be asymmetrically limited by optional slotted diaphragm, 100° / 11°
Temperature range, environment -40 °C to +70 °C
Ambient temperature range: ex-free zone -40 °C to +60 °C, ex-zone -20 °C to +60 °C
Ambient temperature in material flow: ≤ 70 °C
Temperature range, storage: -40 °C to +70 °C
Storage temperature: -20 °C to +60 °C
Relative humidity: 0 to 95 %, non-condensing
Transportation speed: 2 to 50 m/s (other speeds on demand)
Use: in areas with daylight and/or artificial light, ex-free areas, ex-zone 22
Connection: connecting terminals (max. 2.5 mm²)
Cable length: 3 x 0.75 mm², max. 1000 m, 3 x 1.50 mm², max. 2000 m, 3 x 2.50 mm², max. 3000 m
Material of housing: Macrolon
Degree of protection: IP 65
Connection: pre-fitted connecting cable, pluggable: cable length 2.5 m (3 x 0.5 mm²) optionally 25 m (3 x 0.5 mm²)
Housing dimensions: 200 x 80 x 70 mm
Housing colour: basic housing grey, housing cover painted green, RAL 6029
Weight: HPD 1/8 approx. 520 g, HPD 1/8 Ex approx. 650 g
Available mounting adapters: threaded adapter DLD Ex, welding adapter DLD Ex, air purge adapter, slotted diaphram (option)

Air purge adapter

If dirt accumulation or other build-up on the sensor optics is expected, special air purge adapters increase the detection reliability. Cleaning intervals are thus extended.