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GRECON FUNKENMELDER FM3/8 DETECTOR
GRECON FUNKENMELDER FM3/8 DETECTOR

GRECON FUNKENMELDER FM3/8 DETECTOR

GRECON FM 3/8 Funkenmelder (Spark Detector) is used in GreCon's fire prevention and extinguishing systems, specifically for detecting sparks and glowing embers in industrial processes with high temperatures. The "FM 3/8" series is designed for applications where temperatures can reach up to 600°C. This is crucial in places where high heat is unavoidable and other detectors would not withstand, such as drying ovens, hot air lines, furnace outlets, milling, and conveying systems. Primary areas of use include the woodworking, textile, paper, recycling, food processing, and chemical industries. The detector operates by transmitting light signals (infrared radiation emitted by sparks) via fiber optic cables to the sensor unit, allowing the detector itself to be mounted in a cooler area.
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GRECON FM 3/8 Funkenmelder is an infrared detector with fiber optic connection, designed for reliable spark detection in high-temperature environments. This detector is optimized for use where processing or drying temperatures can exceed 600°C. The detection principle relies on transmitting infrared radiation from sparks to three separate photo-optic diodes within the detector via three individual stainless steel-covered glass fiber optic cables. This use of three detection elements ensures high detection reliability. The detector performs best in dark areas with no or minimal ambient light, as it is insensitive to daylight or artificial light. A detected spark or hot particle signal is transmitted to the connected GreCon control panel, automatically initiating fire extinguishing or prevention measures.
  • Model Number: Typically listed as 581550 (general ID for the FM 3/8 model).
  • Type: Funkenmelder (Spark Detector)
  • Series: FM 3/8
  • Detection Principle: Infrared (IR) - Light transmission via fiber optic cables.
  • Application Area: High-temperature processes (up to 600°C), dark areas or areas without light transmission.
  • Detection Sensitivity: High, detects even the smallest sparks and glowing particles.
  • Spectral Sensitivity: Typically in the range of 780 nm to 1100 nm.
  • Operating Ambient Temperature (Detector unit): -40 °C to +70 °C.
  • Material Flow Temperature (at the lens point): Max. +80 °C (up to 600°C with fiber optic cables and adapters).
  • Transportation Speed: 2 to 50 m/s (other speeds on demand).
  • Housing Material: Aluminum die casting (GD-AlSi12).
  • Protection Class: IP 65 (protected against dust and splashing water).
  • Connection: Ready-to-use connecting cable, plug-in (typically 2.5 m or 25 m long).
  • Features: High reliability due to triple detection elements, flexible mounting options with fiber optic cables.
  • Ex Protection: This standard FM 3/8 model is generally not "Ex" (explosion-proof) protected. However, GreCon also offers "Ex" certified versions of the FM 3/8 series (e.g., FM 3/8 Ex II 1 D). If the model number does not explicitly include "EX", its suitability for explosive atmospheres should be confirmed.