เครื่องทดสอบความแข็งของ Leeb UD-LM100

Working Principle
To use the impact body of certain weight impacts against the testing surface under certain spring force, leeb hardness means the ratio of the impacting velocity(Va) and the rebounding velocity(Vb) of the impact body when the spherically test tip is located 1mm above the testing surface. The leeb hardness values are calculated by the following formula:

Specification
Measuring Method Leeb Hardness method
Hardness Scale HL, HB, HRB, HRC, HV, HS, σb
Measuring Range HLD(200-960), HRC(19.8-68.5), HRB(13.5-100), HB(30-651), HV(80-976), HS(26.4-99.5), σb (375-2639)
Impact Device D type impact device standard, optional C/G/DC/DL/D+15
Accuracy ± 6HLD (HLD=800), Repeatability 6HLD (HLD=800)
Measuring Direction 360 degree by manual setting
Material Steel& Cast Steel, Stainless Steel, GC iron, NC iron, Cast Aluminum alloy, Macht metal, Copper-tin alloy, Brass.
Resolution 1HL, 1HV, 1HB, 0.1HRB, 0.1HRC, 0.1HS
Display High Contrast Segment Liquid Crystal Display (LED Backlight)
Data Memory 100 groups (each group include 1-7 testing result and 1 MEAN value)
Communication USB port (Standard) and Blue tooth (Optional)
Printer Thermal Printer with blue tooth (optional)
Power 2 AA batteries
Working Temperature -10 to +50
Size 153 × 76× 37 (mm) (H× W× D)
Weight 280g include batteries
Standard GB/T 17394-1998, ASTM A956

Standard Configuration Optional Configuration
LM 100 Main Unit Impact Device: D/C/G/DC/DL/D+15
D Type Impact Device Standard Test Block
Standard Test Block Blue tooth module & Thermal Printer
Rubber Sheath Belt
Small Support Ring Standard Support Ring
Cleaning Brush Small Support Ring
2 AA Batteries Special Support Ring
Operating Manual
Instrument Case