ASTM D3241, IP 323
The Alcor VTR-100 (Visual Tube Rater) is used to manually rate heater tube deposits formed during a jet fuel thermal oxidation test. Manual visual rating is the only approved heater tube deposit rating technique allowed in ASTM D3241 and IP323.
The heater tube is attached to a holder and inserted in the VTR-100, along with the ASTM Color Standard (included). The tube holder may be moved up and down and rotated to locate the darkest section of the tube; the color codes on the ASTM Color Standard may be moved adjacent to the section of the tube being rated. Both are illuminated by special lights and are easily observed through an attached viewer.
Heater Tube Rater Manual
Features & Benefits
Multi-tap transformer for multiple voltage selection
Tilts for ergonomic use
Uses standard ASTM color chart
Easy to clean magnifier
Momentary switch prevents heat damage to color chart
Special internal coating to enhance color visualization
Easy to switch power cords for international power outlets