LM-300/330 Kalem Tip Portatif Sertlik Ölçüm Cihazı

The LM 300 is a Pen type designed hardness tester with D device. It has a 1.77” large-screen OLED color display. The D impact device is used in difficult to access areas of measurements. LM 300 is accurate in any impact direction 360°. It automatically identifies impact direction and gravity compensation. LM300 hardness pen tester conforms to ASTM A956 and GB/T 17394-1998.
The following materials can be selected: Steel / Cast Steel, Gray Cast Iron, Nodular Cast Iron, Cast Aluminum, Brass, Bronze, Copper, Stainless Steel, Forged Steel and Tool Steel*. LM 300 Hardness Tester Kits Include: main device, D Type Impact Device , Test Block with HLD value, Small supporting ring, Charger, Cleaning brush, Instruction Manual, Warranty Certificate, Certificate of Conformity, Instrument Carrying Case.
Technical Specifications 
Measuring Method: Leeb hardness testing method 
Hardness Scale: HL, HB, HRB, HRC, HV, HS Strength (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); 
Accuracy: Measuring Error﹤6HLD (HLD=800), Repeatability ﹤6HLD (HLD=800) 
Measuring Direction: Vertically downward, inclined downward 45 degrees, Level, inclined upward 45 degrees, vertically upward, 360 degrees by manual setting(Only for LM330). 
Material: Steel& Cast Steel, Stainless Steel, GC IRON, NC IRON, Cast Aluminum alloy, Copper-zinc alloy, Copper-tin alloy, Brass, Forged Steel, Alloy Tool Steel. 
Resolution: 1HL, 1HV, 1HB, 0.1HRB, 0.1HRC, 0.1HS 
Display: OLED full color dot matrix screen 
Memory: 1000groups (each group includes 2-6 testing values and 1 average value) 
Communication: USB 2.0 
Power: Polymer lithium battery, Capacity of 600 MA/H, voltage: 3.7 V, or AAA Alkaline Batteries 


  • Working Temperature: -10℃~ +50℃ 
    Size: 149MM*45MM 
    Weight: 110g 
    Battery: 10g 
    Standard: GB/T 17394-1998, ASTM A956 
    3.2 Applications 
    Installed machinery and permanent assembly parts 
    Mould cavity 
    Heavy workpieces 
    Conduct Failure analysis of pressure vessel, turbine and other Equipment. 
    Small test area 
    The production line of Bearings and other parts 
    Distinguish the material of the metal material warehouse