LS252DC Leeb Hardness Tester
New upgraded model of extremely short impact device DC
Spring loaded with a special loading stick
Dual-coil technology
Extraordinary accuracy:±6HL
LS252DC feature introduction
LS252DC is an advanced lipstick-sized metal hardness tester which incorporates the impact device and controller into one unit. It easily fits in a pocket or your palm. 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 OLED display screen. Equipped with impact device DC, the Leeb hardness tester is suitable for very confined spaces such as holes, cylinders or for internal measurements on assembled machines. The battery can be charged simply from USB port, also it has a customer re-calibration function.
Application
LS252DC 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 is suitable for very confined spaces such as holes, cylinders or for internal measurements on assembled machines.
Parameters
| Parameters | Value |
|---|---|
| Probe | Impact device DC |
| 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) |
| Resolution | 1HL |
| Accuracy | ±12 HL, ±6 HL typical |
| Repeatability | 6HL |
| Display | 128 * 64 dot matrix OLED |
| Power Supply | Rechargeable lithium battery 3.7V@250mAh, full charge for over 5000 continuous measurements |
| Charging Port | USB(Type-C) |
| Size | 88 * 34 * 24 mm |
| Weight | 48g |
| Working Temperature Range | -10~50℃，0~85%RH（no condensation） |
| Storage Temperature Range | -10~60℃，0~85%RH（no condensation） |
Features
Small size, easy operation
Thanks to the small size as lipstick, the LS252DC is simple to operate and easily to be carried out
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
Impact device is made of Tungsten carbide
Impact device DC is partly made of Tungsten carbide, and its hardness is almost equal to the diamond.
Conversions to different hardness scales
LS252DC 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)
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
Innovation
Ultra-portable, intelligent Leeb DC probe with a clean user-interface
Efficiency
The small hardness tester lets you keep it in your pocket for a more streamlined workflow
Economic
Equipped with standard Leeb hardness standard test block, the user can save the cost of subsequent test block consumables
Qualifications and Standards
LS252DC 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
Operation
Loading: Take down the loading stick and push the impact body forward until it to be locked
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.
Loading
Positioning
Measurement
Cautious:
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.
Packing
| No. | Product Name | Quantity | Unit |
|---|---|---|---|
| 1 | Leeb Hardness Tester | 1 | Set |
| 2 | Push Rod | 1 | pcs |
| 3 | USB data cable | 1 | pcs |
| 4 | Nylon Brush | 1 | pcs |
| 5 | Small support ring | 1 | pcs |
| 6 | User Manual | 1 | pcs |
| 7 | Calibration Report | 1 | pcs |
| 8 | Certificate / Warranty card | 1 | pcs |
FAQ
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What is the thinnest thickness a durometer can measure and what is the thinnest thickness after coupling?
Leeb hardness tester is only suitable for large and heavy workpieces, small and thin parts must be coupled to a solid support for testing; DC-type impact device is measured by the minimum mass of 5kg, the minimum thickness of 25mm, if the weight or thickness does not meet the requirements, must be coupled to a solid support for testing, coupled to the minimum thickness of the measured object is 3mm.
Videos
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Small mass workpiece coupling demonstration
Leeb hardness tester selection
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