DTEC DH280 Portable Leeb Hardness Tester Best Quality with CE ISO Authorized Best-selling Model

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:

HL=1000X(Vb/Va)




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

• 128×64 dot matrix LCD Large Digital screen, displaying not only figures,but also characters;

• 6 Exchangeable hardness scales: HRB, HRC, HV, HB, HS, HL, 3 types of strength values, Suitable to measure the hardness of all metallic materials;
• 7 impact devices available for special usage, automatically identify the type of impact devices;

• 500 groups storage capacity, including single measured value, average value, testing data, impact direction, impact times, material and hardness scale etc;

• Built-in mini-printer, enable to print testing result on-site;

• Equips with USB port, standard along with multi-functions(query,saving,statistics,bar graph displaying) data proceeding software, enable to connect to PC and make further data analysis;

• Humanized user calibration function,also support software calibration;

• Freely set limited hardness value,AUTO alarming when over-limited;

• NI-MH rechargeable battery, continuous working time of no less than 150 hours after full charge(EL off and no printing);

• Auto power off set to save energy;

• Excellent after-sale service system for high quality products---3 years’ guarantee and all life maintenance. Easy to buy and convenient to use.

  Standard Packing Accessories:

  Optional Accessories:

Every set of our equipement will be carefully tested and double checked steps by steps before being packed and delivery,as we all know that among such fierce international competition,only 100% good quality and stable performance can finally attain the customer's trust.Hence,we will always put the equipment calibraton job in the first place while manufacturing.