working principle

With a certain quality of the impact of the impact of the spring under the impact of the specimen surface, the impact of the specimen from the surface of the sample at 1mm at the impact rate VA and the rebound speed VB ratio that

In the use of electromagnetic principle, the impact of the body of the permanent magnet in the impact device coil to produce an induced voltage, the voltage and the impact of the body is proportional to the speed.

Formula: HL = 1000 × VB / VA

Technical Parameters

Measuring method: Lee 's hardness measurement method
Hardness: Ricky HL, Brah's HB, Rockwell HRB, Rockwell HRC, Vickers HV, Shore HS, Strength 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: Standard D, optional C / G / DC / DL / D + 15
Indication error: error is equal to or less than 6HLD (HLD = 800), repeatability error is less than 6HLD (HLD = 800)
Measuring direction: support vertical down, oblique, horizontal, oblique, vertical upward
Applicable materials: steel and cast steel, stainless steel, gray cast iron, ductile iron, cast aluminum alloy, copper and zinc alloy, copper-tin alloy, pure copper
Resolution: 1HL, 1HV, 1HB, 0.1HRB, 0.1HRC, 0.1HS
Display: High contrast segment code LCD screen (LED backlight)
Data storage: 100 groups (each containing 1-7 hardness values ​​and an average)
Communication interface: Bluetooth, USB
Print: Bluetooth thermal printer
Working power: two 1.5V AA batteries
Operating temperature: -10 to +50 ℃
Instrument size: 153mm × 76mm × 37mm (H × W × D)
Weight: 280g with battery
Standard: in line with GB / T 17394-1998, ASTM A956 standards

Instrument configuration

Standard configuration: LM100 host, D-type impact device, high-value standard hardness block, rubber sheath, small support ring, nylon brush, two AA batteries, operating manual,

Equipment box

Accessories: Impact device: D / C / G / DC / DL / D + 15, Leeb hardness block, Bluetooth printer, strap, standard support ring, small support ring, shaped support ring