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ERICHSEN GmbH & Co. KG
Technical Description Model 232

Technical Description Model 232

Product catalog summary

Overview: The document provides a technical description and operating instructions for the Grindometer according to Hegman, Model 232, used to measure the fineness of grind in coating materials. It adheres to standards ISO 1524, EN 21 524, DIN 53 203, and ASTM D 1210.

Testing Principle: The Grindometer creates a liquid wedge-shaped specimen of the test substance. The fineness of grind is determined by visually examining where the grain size exceeds the wedge channel dimensions, and reading the channel depth at the boundary between uneven and smooth areas.

Design and Function: The instrument consists of a hardened steel block with two wedge-shaped channels. The depth is measured on a µm scale, with a corresponding Hegman scale on the opposite side. It is available in various scale combinations and measuring ranges (15, 25, 50, and 100 µm).

Test Procedure: Test material is poured into the channels, spread evenly with a straightedge scraper, and evaluated within 3 seconds. The fineness of grind is defined at the point where particles or scratches become visible.

Maintenance: The Grindometer should be cleaned immediately after use with solvent. Avoid using hard implements for cleaning. The straightedge should be applied with minimal pressure and checked regularly for wear.

Technical Data: Dimensions are 165 x 38 x 13 mm, with a net weight of 0.8 kg. It comes with a Manufacturer’s Certificate M, detailing groove depth accuracy and calibration status.

Ordering Information: The document lists product order numbers for different measuring ranges and mentions the inclusion of a straightedge blade and plastic case in the supply.

Catalog excerpts

testing equipment for quality management Technical Description and Operating Instructions

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The Grindometer acc. to Hegman, Model 232, was developed to establish the fineness of grind of coating materials. The instrument is used to produce a liquid wedge-shaped specimen of the test substance. It can be easily ascertained by visual examination where the grain size is larger than the local dimensions of the wedge channel. A reading of the appropriate channel depth is taken at the boundary between the uneven and the smooth surface areas of the sample. This value determines the fineness of grind. The Grindometer acc. to Hegman, Model 232, consists of a block of hardened steel which has...

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