Working principle

With a certain quality of impact in the spring under the force of the impact surface of the sample, impact body impact velocity from the surface 1mm VA and VB rebound faster than that indicated

Leeb hardness. Electromagnetic theory, impact body impact device coil permanent magnet produces a voltage, this voltage is proportional to the speed of the impact body.

Formula: HL =1000xVB/VA

Technical parameters

Measurement method: Leeb hardness measuring method
Hardness standard: Leeb HL, Brinell HB, Rockwell HRB, Rockwell HRC, Vickers HV, Shaw HS strength σ b
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 standard, optional C/G/DC/DL/D+15
Indication error: error is less than or equal to 6HLD (HLD=800), repetition error of less than 6HLD (when HLD=800)
Measuring direction: supports vertically downward, diagonal downward, horizontal, diagonal up, straight up
Applicable materials: steel and cast steel, stainless steel, grey cast iron, nodular cast iron, cast aluminum alloy, copper-zinc alloy, Copper-tin alloy, copper
Resolution: 1HL, 1HV 1HB, 0.1HRB, 0.1HRC, 0.1HS
Display: high contrast codes LCD display (LED backlight)
Data storage: 100 Group (1-7 average hardness values, and one per group)
Communication interface: Bluetooth, USB
Printed: Bluetooth thermal portable printer
Power supply: two 1.5V AA batteries
Operating temperature:-10 to + 50 ℃
Equipment dimensions: 153mmx76mmx37mm (HxWxD)
Weight: with battery 280g
Standard: GB/t 17394-1998,ASTM A956

Instrument configuration

Standard configuration: LM100, impact device d, high-value standard hardness blocks, rubber boot, small support ring, nylon brush, two AA batteries, instruction manual,

Instrument case

Accessories: impact devices: D/C/G/DC/DL/D+15, hardness, Bluetooth printer, carrying strap, standard support ring, small support ring, special support rings