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Working Principle

The impact body 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.

Specifications

Measuring Method

Leeb Hardness 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/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, Forged Steel

Resolution

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

Display

High Contrast Segment Liquid Crystal Display(LED Backlight)

Memory:

100 groups ,each group include 1-7 testing result and 1 average value

Communication

USB port (Standard) and Blue tooth (Optional)

Printer

Thermal Printer with blue tooth (Optional)

Power

2 AA Batteries

Instrument Shut-off

AUTO OFF after 3 minutes of inactivity

Temperature

-10℃~ +50℃

Net Weight

280g include batteries

Size

153mm*76mm*37mm

Standard

GB/T 17394-1998, ASTM A956