AEROSPACE TESTING

Starrett Introduces Automated Digital Hardness Testers

The L.S. Starrett Co., a manufacturer of precision measuring tools and gages, metrology systems and more, has introduced two new digital Rockwell/ Superficial Rockwell Benchtop Hardness Testers (Nos. 3823 and 3824) with fully automated load/ unload procedures, and capable of providing highly accurate readings. The new Starrett Hardness Tester models utilize a closed-loop control unit with a load cell, a DC motor and an electronic measurement and control unit instead of traditional dead weights, enabling high accuracy measurements at all test loads up to 0.5%. The testers are part of a significantly expanded line of new hardness testing solutions that Starrett is now offering.

The Starrett No. 3824 Hardness Tester has an automated Z-Axis. The user simply presses the START key, and the entire test process is automatically completed. The Starrett testers feature programmable scale conversions, dwell times, statistical capabilities and a test counter and are capable of testing in a wide range of 30 different Rockwell hardness scales for carbon steel, alloy steel, cast iron and non-ferrous metals.

Suitable for both internal and external testing via a dolphin nose design, the Starrett No. 3823 and 3824 Digital Testers are high precision testing solutions that meet ISO 6508-2 and ASTM E18 standards. They feature a built-in micro-printer, touch screen control on a high definition LCD display, USB output, and are furnished with PC-based software. For memory, a maximum of 400 items of test results are stored automatically. Testing capacity is 12″ (300 mm) vertical and 8.8″ (220 mm) horizontal. A full range of accessories from test blocks to anvils, to dust cover are also included.

Featuring a manual Z-Axis instead of an automated Z, the No. 3823 Digital Superficial Rockwell Hardness Tester is a good value alternative to the No. 3824 Tester. Both the Starrett No. 3823 and No. 3824 feature auto load test force control.

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