Details

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LS252C Leeb Hardness Tester

Ideal for testing the hardness of surface hardening layers and parts with small masses or thin thicknesses

Adopts Impact device C
Dual coil technology for good measurement accuracy and repeatability
Probe with orientation sensor for full angle measurement

 

The LS252C is an all-in-one hardness tester with a compact size for hardness measurements on various metal materials. Featuring a C-shaped impact device with low impact force, it is suitable for testing the hardness of surface hardening layers and parts with small masses or thin thicknesses. The instrument uses advanced dual coil technology for good repeatability and high measurement accuracy. The probe has a built-in orientation sensor, which automatically compensates for measurement errors in different impact directions. The system has five hardness scales, which can be interchanged between Richter (HL), Vickers (HV), Brinell (HB), Shore (HS) and Rockwell (HRC) to avoid tedious manual calculations.

Application

The instrument uses a impact device C with many metal materials choices for wide applications.
 

Parameters

Parameter	Value
Probe	Impact device C
Hardness Scales	HL, HV, HB, HS, HRC
Measurement Range	HLC: (170-960); HV(80-996);   HB(80-683); HRC(20-69.5); HS(31.9-102.3);
Resolution	1HL
Accuracy	±12 HL, ±6 HL typical
Repeatability	6HL (factory standard)
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	140*34*24 mm
Weight	66g
Working Temperature Range	-10~50℃，0~85%RH（no condensation）
Storage Temperature Range	-10~60℃，0~85%RH（no condensation）

 

Impact device C for hardness measurement of small or thin metal parts

The instrument uses a impact device C with a low impact force, suitable for testing small masses or thin metal parts and surface hardening layers.

 

All-in-one design, compact and portable

The instrument weighs only 66 grams and is easy to carry

 

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

LS252C hardness tester provides a variety of hardness scales, which can be converted between Leeb (HL), Vickers (HV), Brinell (HB), Shore (HS) and Rockwell (HRC) eliminating the cumbersome steps of manual table lookup
 

Impact device is made of Tungsten carbide

LS252C 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

Dynamic hibernation algorithm, a large-capacity lithium battery power supply

35 hours of continuous operation on a full charge, for long-lasting measurement work
 

Customer re-calibration allowed

Users can calibrate the standard parts to eliminate the error
 

Qualifications and Standards

The hardness tester conforms to the following standards:

 

• GB/T 17394.1  Metallic materials-Leeb hardness test-Part 1: Test method
• GB/T 17394.2  Metallic materials-Leeb hardness test-Part 2: Verification and calibration of hardness tester
• GB/T 17394.4  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