Logika Technologies

HMD-FOC – Fibre Optic Static Hot Metal Detector

The Fibre Optic Static Hot Metal Detector uses a state-of-the-art infrared photo detector in front of a robust electronics signal processing package to allow for fast and reliable detection of hot objects in extreme industrial environments. A remote lens coupled via a fibre optic cable allow the sensing head to be placed very close to the target area thus ‘cutting through’ heavy steam, smoke, and dust.  The HMD-FOC is used primarily for detection of hot metal above 360°C / 680˚F, including most shapes and dimensions of wire rod, bar, strip, steel plate, billet, and slab.

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Applications

  • Slab / Billet / Bloom
  • Thin Slab / Tunnel Furnace
  • Thin Strip
  • Furnace Exit
  • Hot Strip / Plate Mill
  • Long Products Rolling
  • Pipe and Tube
  • Wire / Rod
  • Heat Treatment Furnace
  • Forging

Features

  • Designed for harsh environments, up to 300°C (572°F) ambient for the measurement head and up to 70°C for the electronics uni
  • Stainless steel lens is utilized with fibre optic cable for operation in extremely high temperatures.
  • Includes integrated Air Purging and unique internal baffles to keep front window clean
  • Quick access controls for Test button, and sensitivity adjustment
  • Easy to install, drop-in replacement for competitive products
  • Fast Response time
  • Reliable long file, low maintenance operation
  • Access to an experienced applications engineering support team (included with all Logika products)

Options

  • Custom length Power Cable and Fibre Optic cable
  • Support Stand - Steel Construction

Specifications

Electronics Unit Operating temp:
-25˚C to +70˚C (-13˚F to +158˚F)
Detect Range:
0.2-8m
Response:
Relay < 20 ms, PNP/NPN < 2ms
LED Indicators:
Green = Power on, Red = Target Detect
Output:
Relay 30VDC/220VAC @ 5A High on Detect(PNP): max 100mA Low on Detect (NPN): max 100mA
Power Input:
24 VDC, 110VAC, 220VAC @ 5W (select DC or AC at time of order)
Fibre Optic Cable:
Standard 2 Meters Long, Other Lengths optionally available
Power Cable:
2 Meters, 11 conductors, Steel Braided
Senor Detect Infrared Range:
HT Model: 500 ° 1400°C , 700nm-1200nm LT model: 360°C-1400°C, 900nm-1700nm,
Self Testing:
Test Pin
Protection:
DC Polarity, Output overload, Short Circuit protection
Weight:
1.3 kg (2.8 LBS)

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