Hot Slug Detector

Overview

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 technologies to produce the only viable and reliable hot slug detector.

Short-Wavelength Technology

  • Short Wavelengths view deep into the batting to sense even the smallest hot slug.
  • Model HSD-00 views as deep as 16 inches into the batting and is compatible with conventional lighting.
  • Model HSD-01 views as deep as 30 inches into the batting and is compatible with LED lighting, fluorescent lighting, or an area in a shadow. This model is more than 3 times more sensitive to hot slugs near the bottom of the batting compared to the model HSD-00.

Unique Hot Spot Detection System

  • 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.

 Download Datasheet 

HSD-00-IM-CF040
  • Original wavelength set
  • Senses a ¼-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 ¼-inch (6 mm) slug as deep as 20 inches and a ½-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

Product Specifications

Consult with One of Williamson’s Temperature Experts

We would love to discuss your temperature measurement application with you.

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