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Hot slugs form in the fiber batting process when molten glass falls from the spinner and into the product. Surrounded by insulating material, these hot slugs remain hot, and days later can cause the paper backing and organic binder material to ignite, creating a fire in a warehouse, on a train or in a truck. The Williamson hot slug detector (HSD) identifies the presence of small slugs below the surface of the fiberglass batting during the manufacturing process. 

The Williamson model HSD combines three innovative Williamson industrial infrared thermometer technologies to produce the only viable and reliable hot slug detector.

HSD-00-IM-CF040
  • Original wavelength set
  • Senses a 1/4-inch (6 mm) slug as deep as 16 inches below the surface of the batting material
  • Optimized for depth of penetration while also limiting the sensitivity to hot-light reflections
HSD-01-IM-CF040
  • Optimized wavelength set
  • Senses a 1/4-inch (6 mm) slug as deep as 20 inches and a 1/2-inch slug as deep as 30 inches below the surface of the batting material
  • Optimized for depth of penetration and requires the area lighting to be LED or fluorescent or for the area of measurement to be shielded from traditional hot-lighting
Features
  • The Rate of Change (ROC) alarm system senses the small but instantaneous change in temperature reading associated with the introduction of the hot slug into the field-of-view.
  • The ROC compares the current reading with the reading taken a fraction of a second earlier. Any rise in temperature is amplified and the result is used as the hot slug alarm parameter.

1 - 2 of 2 Part Numbers
HSD-00-IM-CF040
HSD-00-IM-CF040
Hot Slug Detector (HSD), Traditional Area Lighting
HSD-01-IM-CF040
HSD-01-IM-CF040
Hot Slug Detector (HSD), LED / Fluorescent Area Lighting
1 - 2 of 2 Part Numbers

Specifications

Temperature Limit

  • 750° to 250° F (25° to 120° C)

Spectral Response

  • Traditional Area Lighting / LED or Fluorescent Lighting

Field of View

  • 37” x 37” (923 mm x 923 mm) @ 8 ft / 2.4 m

Accuracy

  • 0.25 % of Reading or 2° C whichever is greater

Repeatability

  • Better than 1° C

Emissivity

  • 0.010 to 1.500

Response/Update Time

  • 100 ms Intial Response Time with 50 ms Update Time

Analog Output

  • 0/4-20 mA

Alarm

  • Two Form-C, One TTL Alarm

Analog Input

  • 0/4-20 mA

Digital Interface

  • Bi-Directional RS-485 and RS-232

Input Power

  • 24 Vdc (300 mA)

Ambient Temperature

  • 0° to 150° F (-17° to 65° C)

Environmental Protection

  • NEMA 4X (IP65)

Certifications & Approvals

  • CE:
  • LVD

Documentation

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