Product Overview
MH600 portable Leeb hardness tester, intelligent design can be used quickly and easily for on-site testing of meta 
hardness IP65 protection, can effectively prevent oil, dust and other corrosion in harsh fie d environments; with color LCD display, it. can also display clear testing results in dim light and strong sun light environment which greatly enhance the visual experience; special multi- point calibration function for convert. curve to reduce errors;it can automatically identify the measuring direction when testing, automatically alarm when out of range, to meet the inspection requirements with high precision and multi-angle material collected and support free conversion between hardness scale, Ow power consumption design by two AA batteries, support multiple languages, it is widely used in metal processing and manufacturing, special equipment or permanent component failure analysis in service, inspection and other fields, Particularly suitable for large non-removable part of the site hardness testing. It is necessary professional precision instrument to improve the pass rate of production and cost savings 
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 Display：Color TFT,320x240 dots, dot-matric LCD
l Built-in: conversion table from(to) HLD to(from)HLG,HLC,HLDL,HLD+15
l Dat
Application fields
l Die cavity of molds
l Bearings and other parts
l Failure analysis of pressure vessel, steam generator and other equipment
l Heavy work piece
l The installed machinery and permanently assembled parts
l Testing surface of a small hollow space
l Requirements of formal original record for test results
l Material identification In the warehouse of metallic materials
l Rapid testing in large range and multi-measuring areas for large-scale work piece
Application conditions
l Surface temperature can’t be overheat less than 120℃
l Surface roughness should not to be too large, otherwise it will cause errors. The surface of the work piece must be exposed metallic luster, smoothing and polish without Oil
l The specimens with 2-5kg or thin walled specimens overhangs should be supported with some object in order to avoid the specimen deformation ,bending and movement caused by impact for medium-sized work piece ,it shall be placed on a flat and hard surface, the sample must be placed absolutely smoothly,without any shake, for heavy samples more than 5kg, it can be measured dire without any support.
l Portable Leeb hardness tester has strict requirements for sample thickness , the minimum thickness shall comply with regulatory a(see instructions).
l For work piece with hardened layer on surface,the depth of hardened layer should conform to regulatory
l For lighter parts, please make it tightly coupled with support ,two coupled surface layer should must be conform flat and to smooth, the coupling gel should not to be too much. The direction of the test shall be perpendicular to the coupling plate; if the work piece is a large plate, pole or bending material , even the weight and thickness is okay ,it may still cause deformation and instability, resulting in test values error, it should be reinforced or supported at the back of the test points.
l Magnetic of work piece should be less than 30 gauss.
l For artifact-surface : The work piece surface is preferably flat. When the curvature radius R of measured surface is less than 30mm,the.work pieces should be tested with the small support ring the shaped support ring.
Impact Devices
D: Stand configuration,for normal testing
DC: Test hole or hollow cylindrical
DL: Test slender narrow groove or hole
D+I5: Test groove or concave surface
G: Test large, thick, heavy and rough surface steel
C: Test small, light, thin parts and surface of hardened layer
