Automated Digital Hardness Testers

L.S. STARRETT CO. 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 hardness tester models use 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 from Starrett, manufacturer of precision measuring tools and gages, and metrology systems.

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 nonferrous 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, and 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 in. (300 mm) vertical and 8.8 in. (220 mm) horizontal. A full range of accessories from test blocks to anvils, to dust cover are also included. Learn more at www.starrett.com