Operating Principle

The impact body, which is equipped with tungsten carbide, impacts into the work piece and rebounds back. 

The rebound and impact velocities are measured at the 1mm point from the work piece in the following way:  

the integrated permanent magnet will produce directly proportional voltage with the impact velocity. 

The Leeb hardness values are calculated by the following formula: 

HL=1000×( Vb / Va )

 

Technical Specifications

Measuring Method: Leeb Hardness Testing method

Hardness Scale: HL, HB, HRB, HRC, HV, HS, σb

Measuring Range : HLD(200-960) HRC(19.8-68.5) HB(30-651) HV(80-976) HS(26.4-99.5) HRB(13.5-100)   σb(375-2639)

Impact device: D type impact device (Standard); Optional C/G/DC/DL

Accuracy: ±6HLD (HLD=800), Repeatability < 10HLD (HLD=800)

Measuring direction: Vertically Downwards, Downward Sloping, Level, Upwardly Inclined, Vertically Upwards

Material :Steel & Cast Steel, Stainless Steel, GC IRON, NC IRON, Cast Aluminum alloy, Macht metal, Copper-tin alloy, Brass, Forged Steel

Resolution: 1HL,1HV,1HB,0.1HRB,0.1HRC,0.1HS 

Display: Color HD IPS Screen

Memory:11000 Groups (with 1-8 impact times)

Power: 2 AA batteries

Working temperature: -10 to +50 Degrees Celsius

Size: 153X76X37 (mm) (HXWXD)

Weight: 242g include batteries

Standard: GB/T 17394-1998, ASTM A956

 

Applications

Installed machinery and Permanent assembly parts

Mould cavity

Heavy workpieces

Failure analysis of pressure vessel, turbine and other equipments

Small test area

The production line of Bearings and other parts

Distinguish the material of the metal material warehouse

 

Standard delivery:

Main unit

D type impact device

HLD value Standard Calibration Block

DataView software

USB Communication cable

Small supporting ring

Cleaning brush

User's manual

Suitcase

 

Optional accessories:

Impact device DC/C/DL/G

Standard Calibration Test Block

Protective Rubber case

Straps

Standard supporting ring

Small Supporting ring

Special supporting rings