LS252D is an advanced state-of-the-art palm sized metal hardness tester which incorporates the impact device and controller into one unit. It easily fits in a pocket. It used lastest dual-coil technology which makes the tester to have extraordinary accuracy: ±6 HL and good repeatability:6HL. It adopts orientation sensors that will compensate the measurement errors in different impact directions automatically to ensure the accurate data, with durable metal housing and OLED display screen. Equipped with impact device D, LS252D is especially suitable for almost any object, polished parts and heat-treated surfaces or the situation requiring a large number of tests. The battery can be charged simply from USB port, also it has a customer re-calibration function.
LS252D feature video
LS252D handy Leeb hardness tester is suitable for testing the hardness of materials such as steel, cast steel, alloy steel, stainless steel, gray cast iron, ductile iron, cast aluminum alloy, copper-zinc alloy, copper-tin alloy, pure copper and forged steel. The instrument can be widely used in machine tool guides, automotive chassis, heavy workpieces, mold cavities, bearings, pressure vessels and installed machinery or assembly parts and can help manufacturers to carry out product quality inspection and reasonable process analysis.
|Probe||Impact device D|
|Hardness Scales||HL, HV, HB, HS, HRA, HRB, HRC|
|Measurement Range||HLD: (170-960); HV(83-976); HB(30-651); HRC(17.6-68.5); HS(26.4-99.5); HRB(13.5-100); HRA(60-85.8)|
|Display||128 * 64 dot matrix OLED|
|Power Supply||Rechargeable lithium battery 3.7V@250mAh, full charge for over 5000 continuous measurements|
|Weight||About 68 g|
|Working Temperature Range||-10~50℃，0~85%RH（no condensation）|
|Storage Temperature Range||-10~60℃，0~85%RH（no condensation）|
Integrated design, easy operation
Pen-type Leeb hardness tester is lightweight and portable with easy operation
High accuracy with patented dual-coil technology
Cutting-edge dual-coil technology bring the tester extraordinary measurement accuracy and good repeatability
Direction sensor inside the probe will compensate the measurement errors in different impact directions automatically
The instrument can measure at any angles. Featuring a built-in direction sensor, the probe can automatically compensate the measurement errors in different impact directions. Multi-angle measurement is easy
Capable of measuring a wide range of metal materials
With 10 built-in metal materials, including steel, alloy tool steel, stainless steel and grey cast iron, the instrument can be used in a wide range of applications and industries to meet the demands of everyday work
Conversions to different hardness scales
LS252D hardness tester provides a variety of hardness scales, which can be converted between Leeb (HL), Vickers (HV), Brinell (HB), Shore (HS) and Rockwell (HRA/HRB/HRC) eliminating the cumbersome steps of manual table lookup
Impact device is made of Tungsten carbide
LS252D impact device is partly made of Tungsten carbide, and its hardness is almost equal to the diamond
USB port is used to charge to battery
Using rechargeable lithium battery, the battery can be charged simply from USB port
Customer re-calibration allowed
Users can calibrate the standard parts to reduce the error
Qualifications and Standards
LS252D Hardness Tester conforms to the following standards:
GB/T 13794.1 Metallic materials-Leeb hardness test-Part 1: Test method
GB/T 13794.2 Metallic materials-Leeb hardness test-Part 2: Verification and calibration of hardness tester
GB/T 13794.4 Metallic materials-Leeb hardness test-Part 4: Tables of hardness values conversion
JB/T 9378-2001 Industry standard of Leeb hardness tester
JJG 747-1999 Verification regulation of Leeb hardness tester
Loading: Push down the loading sleeve of the probe to lock the impact body.
Positioning: Press the probe firmly against the surface of the object to be measured and keep it still.
Measurement: Press the release button on the top of the probe to measure the hardness of the object.
When measuring, the distance between any two indentations should not be less than 3mm, and the distance between the center of the indentation and the edge of the object to be measured should not be less than 5mm.
After use, the impact body should be loosened.
The use of various lubricants is strictly prohibited in the impact device.
Your product information request
Please let us know your requirements and we will be in contact with you shortly！