The Elcometer 7062 MarSurf PS10 Roughness Tester (part number K7062M001) is a lightweight, portable surface roughness gauge for the range of roughness measurements required for compliance to international standards. In protective coating applications, surface roughness combines peak-to-valley profile measurement with an assessment of the frequency of peaks within the sample area. Roughness governs coating adhesion and material consumption, so it must be measured rather than estimated, especially where the sample is too large to bring to the laboratory.

The Elcometer 7062 MarSurf PS10 Roughness Tester uses the stylus method, supplied with an inductive skidded stylus pick-up with a 2µm diamond stylus tip and a measuring force of about 0.7 mN, and alternative pick-ups are available for different applications. It reports a wide set of DIN/ISO, JIS, ASME and MOTIF parameters, including Ra, Rq, Rz, Rmax, Rp, Rpk, Rk, Rvk, RSm and Rsk. The measuring range is 350µm with a profile resolution of 8nm. Filtering follows DIN EN ISO 16610-21 (formerly ISO 11562), DIN EN ISO 13565-1 and DIN EN ISO 3274, and can be switched off.

The gauge can be used in virtually any position, with a height adjustment accessory supplied as standard and an integrated calibration standard built into the casing so no external standard is required. The drive unit can be removed and used with the included extension cable to reach awkward areas, and the display offers 17 languages. It stores 3,900 profiles and 500,000 results, runs on a rechargeable battery with a 100V to 264V supply, connects via USB and MarConnect (RS232), measures 160mm x 77mm x 50mm and weighs 500g. It can be used in accordance with ASTM D7127, ASME B46, DIN 4768, EN 10049, ISO 4287, ISO 4287/1, JIS B 0601 and SSPC PA 17. Supplied by BAMR, South Africa's authorised distributor.