The Elcometer 2041 Fineness of Grind Gauges (Hegman, North and PCU) are dual-channel grindometers used to determine the particle size and fineness of grind of materials including paints, pigments, inks, coatings, chocolates and other similar products. This model has been discontinued and replaced by the Elcometer 2020. Measuring how well a material is dispersed matters because oversized or poorly ground particles show up as defects in the finished coating or product, so a grind gauge gives a fast pass or fail before the material goes into production.

The gauges are made of hardened stainless steel with two grooves of graded slope. A scraper draws the material down the channel and the point at which particles begin to streak is read off the scale. They are graduated in microns, mils, NS (Hegman) or PCU (North), with an accuracy of plus or minus 3 microns or plus or minus 5 percent, whichever is the greater. All grooves are 12mm wide and 127mm long, and each gauge measures 180 x 40 x 12mm and weighs 1.36kg. The range covers the 2020/4 (K0002020M004) at 0 to 25 microns, the 2020/1 (K0002020M001) at 0 to 50 microns and the 2020/2 (K0002020M002) at 0 to 100 microns.

The gauges can be used in accordance with standards including ASTM D1210, ISO 1524, AS/NZS 1580.204.1 and JIS K 5600-2-5. They are used in paint, ink, coatings and similar manufacturing laboratories. Supplied by BAMR, South Africa's authorised Elcometer distributor.