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MH320 portable digital leeb hardness tester
Product Overview
MH320 portable Leeb hardness tester is based on Leeb hardness measurement principle, it can be quickly and easily used for on-site testing hardness of metallic materials and support free conversion between Leeb, Brinell, Rockwell hardness and other scales. It uses 128 × 64 dot matrix LCD screen, rich information, intuitive, stable performance and integrated high-speed thermal printer, which enables printing with instant measurement results.It can be widely used in metal processing and manufacturing, special equipment, permanent component failure analysis, inspection and other fields. It is particularly suitable for large parts and non-removable part of the on-site hardness testing. It is to improve production efficiency and pass rate and is a wise choice to save the cost of production.
Technical Specifications
Error and repeatability of displayed value showed in Table below.
No. |
Type of impact device |
Hardness value of Leeb standard hardness block |
Error of displayed value |
Repeatability |
1 |
D |
760±30HLD 530±40HLD |
±6 HLD ±10 HLD |
6 HLD 10 HLD |
2 |
DC |
760±30HLDC 530±40HLDC |
±6 HLDC ±10 HLDC |
6 HLD 10 HLD |
3 |
DL |
878±30HLDL 736±40HLDL |
±12 HLDL |
12 HLDL |
4 |
D+15 |
766±30HLD+15 544±40HLD+15 |
±12 HLD+15 |
12 HLD+15 |
5 |
G |
590±40HLG 500±40HLG |
±12 HLG |
12 HLG |
6 |
E |
725±30HLE 508±40HLE |
±12 HLE |
12 HLE |
7 |
C |
822±30HLC 590±40HLC |
±12 HLC |
12 HLC |
l Measuring range：HLD（170～960）HLD
l Impact direction: vertically downward, oblique, horizontal, vertical upward, automatically identify
l Material: steel and cast steel，cold work tool steel, stainless steel, Grey cast iron,Nodular cast iron, cast aluminum alloys,BRASS(copper-zinc alloys),BRONZE(copper-aluminum/tin alloys),Wrought copper alloys
l Hardness Scale：HL、HB、HRB、HRC、HRA、HV、HS
l Paper Roll: Width (57.5±0.5)mm, diameter: 30mm, imported paper to ensure long-term data storage
l Display：128X64 dots,adjustable backlight
l Data memory：500 measurement series.(relative to impact times 32～1)
l Battery : 6V,(Ni-MH battery pack)
l Power Supply: 9V/500mA
l Recharge Time: 2.5~3.5hours
l Standby Time: About 150hours (with default brightness)
l Communication interface：USB1.1
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