DTEC DH280 Portable Leeb Hardness Tester

DH280 Portable Hardness Tester is a kind of high-tech grade portable hardness testing instrument,adopting low-power design idea,long life span chargeable NI-MH battery and intelligent USB interface, Which is widely used in various metal material；it equips with built-in mini-printer, which can easily print out testing result on-site; moreover, Large LCD digital screen with 128×64 dot matrix enables it to display not only figure, but also character. Customers who are in need of directly printing data out on-site, and enjoying a digital as well as high-tech testing feel, this is the best choice.

Working Principle:

When the impact body,with a certain weight,impacts against the specimen surface under the action of spring force,leeb hardness comes from the ratio of the impacting velocity(VA) and the rebounding velocity(VB) of the impact body by the moment the spherical testing tip is located at 1mm point from specimen surface.

With principle of electromagnetism,the permanent magnet in the coil of impact device produced an induced voltage, which is in proportion to the impact body velocity.

The leeb hardness values are calculated by the following formula:

Main Application:

Die cavity of molds

Bearings and other parts

Failure analysis of pressure vessel, steam generator and other equipment

Heavy work piece

The installed machinery and permanently assembled parts

Testing surface of a small hollow space

Material identification in the warehouse of metallic materials

Rapid testing in large range and multi-measuring areas for large-scale work piece