11/13/2019 | 1 MINUTE READ

Starrett Automated Digital Hardness Testers Produce High Accuracy Measurements

Originally titled 'Automated Digital Hardness Testers Produce High Accuracy Measurements'
Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

The new Starrett 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 L.S. Starrett Co. has introduced two new digital Rockwell/ Superficial Rockwell benchtop hardness testers (Nos. 3823 and 3824) with fully automated load/ unload procedures, that are capable of providing highly accurate readings. The new Starrett 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 an expanded line of new hardness testing solutions that Starrett is now offering.

Starrett Digital Superficial Rockwell Hardness Tester

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 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, touchscreen control on a high definition LCD display and USB output. They 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. 

Resources