Overview
The ERICHSEN Erichsen 232/25μm Grindometer is used for the measurement of the fineness of the coating. By scraping the test coating into an Erichsen shape, visually find the position where the coating particle size is greater than the height of the Erichsen groove, and read the groove depth as the fineness value at the dividing line. The fineness meter is made of hardened steel and is dimensionally stable. It is equipped with double Erichsen grooves and straight edge scraper. Measurement range is 0~ 25μm.
Features
1. Made of hardened steel, special treatment ensures dimensional stability
2.Double-channel design to improve measurement efficiency
3. Accurately machined trough, Graduation 2.5μm
4. Provide μm and Hegman dual scale units
5. Equipped with stainless steel scraper, size 125mm
6. Measurement range 0~ 25μm
Principle
The fineness meter scrapes the test coating into a shape of Ester, and visually finds out the position where the particle size of the coating is greater than the height of the Edge groove. The depth of the groove is read at the position where the sample surface is smooth and uneven. This value is the fineness value of the coating.
Applications
Coating fineness measurement
Steps
1. Pour enough test material into the deep end of the trough, being careful not to bubble
2. Handheld scraper, perpendicular to Fineness Gauge and groove, smoothly scrape the material to the narrower end of the groove, Travel takes 1-2 seconds to complete
3. Evaluate within 3 seconds after scraping
4. When observing, the line of sight is perpendicular to the groove, and the viewing angle is 20-30 degrees
5. Identify where particles gather or scratch
6. Read the groove depth corresponding to this position as the fineness value
Notice
• The fineness meter should be cleaned with solvent immediately after use
Do not use sharp objects to remove residual paints
• Apply minimal force when operating
• The straight edge of the scraper will be continuously abraded and needs to be checked regularly
• Place the scraper on the horizontal plane during inspection and check according to the principle of light transmission
