 Spark detection and extinguishment systems detect and automatically extinguish sparks. The risk of dust fires and explosions can thus be reduced.
Dust fires and explosions often occur in filters, silos and dryers. They endanger human lives, cause severe property damage and interrupt production operations. The reason can be sparks or burning embers caused when working with or drying combustible material and reaching plant areas at risk through the pneumatic and mechanical conveying systems.
Within the framework of its special technology and its distinct design, the GreCon system was developed to detect and extinguish these ignition sources in pneumatic exhaust systems before they reach filters and silos and cause a fire or explosion in these areas!
These extinguishing systems can be provided as water or Co2 based.
 How it works
GreCon sensors contain photo diode elements that detect a spark or burning ember's infrared radiation and signal the control console.
The DLD (daylight) sensor uses a similar detection principle, in applications where ambient light is present.
For high pressure or high temperature applications, fiber optic cables carry the IR energy to separate photo diodes within the sensor.
The TM heat sensor is activated at various preset temperature levels.
Features
- Detects ALL infrared radiation - irrespective of size, and even through dense material flow or layers of dust.
- Non intrusive flush-mounted installation that does not obstruct material flow.
- Easy installation and maintenance with mounting adapters and quick-disconnect electrical plugs.
- Optional air purge for special applications.
- Impact-resistant lens material for reduced wear of sensor optics.
Technical Information
IP 65 / NEMA 4 enclosure.
Shielded electronics against UHF, VHF, or other EMF interference.
Shielded wiring is not required.
Internal test light validates photo diode electronic circuitry.
Stainless steel mounting adapters.
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Sensor
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Application
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Air Temp.
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Sensor/Pipe Dia.
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Viewing Angle
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FM 1/8
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Low Temp/Pressure
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< 158° F
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2 / up to 79” Ø
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³100°
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FM 3/8
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High Temp/Pressure
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< 1000° F
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1 / up to 54” Ø,
2 / 56” - 120” Ø
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³70°
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DLD 1/8A
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Low Temp
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< 140° F
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Appl. Dependent
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³100°
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TM 1/8
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Varies
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140 - 750° F
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Appl. Dependent
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N/A
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We supply four basic sensor models for a wide range of applications
 The FM 1/8 Sensor is a low temperature/low pressure application sensor for the detection of infrared radiation in the 400-1,200 nm range.
 The FM 3/8 Sensor is a high temperature/high pressure application sensor for the detection of infrared radiation in the 400-1,200 nm range. Sensor is linked to the duct via three fiber optic cables.
 The DLD 1/8-A Daylight Sensor is a low temperature application sensor for the detection of infrared radiation in the 1,650-3,000 nm range where ambient light is present.
 The TM 1/8 Rate-of-Rise Sensor is a heat sensor for early detection of temperature rise caused by fire. |
