Product Name: Portable Cement Hardness Tester Model NO.: AL-150N Mobility: Portable Warranty: 1 Year Standard: ASTM, GB/T Application: Concrete Type: Concrete Hardness Tester Strong Measurement Range: Twenty ~ Sixty MPa Impact Function: 2.207 J (0.225 Kgf. M) Pointer Length: 20.0 + / - 0.2 (mm) Pointer Friction: 0.65 + / - 0.15 (N) Trademark: AM Transport Package: Portable Aluminum Case Specification: 170x63x82 mm Origin: China HS Code: 9024800000 Product Description Guangzhou Amittari instruments Co., LTD. specialize in manufacturing coating thickness gauge, ultrasonic thickness gauge, hardness tester, surface roughness tester,vibration meter, gloss meter, whiteness meter, reflectance meter, tint meter, lux meter, stroboscope, tachometer moisture meter, tension meter, sound level meter, anemometer, force gaugeetc..Portable Cement Hardness Tester AL-150NProduct Description TheCement Hardness Tester accord with JGJ/T23-2001 technical codes HX-225 type cement hardness tester for testing and-mpa within the scope of the concrete compressive strength, the system standard energy for 2.207J, and value system as pointer direct reading type medium, the cement hardness tester execute GB9138-88 and JJG817-1993 national metrological verification code standards, by the China construction science research institute producer. Cement hardness tester is suitable for testing the general construction, Bridges and various propose member (plate and beam, column, bridge) strength.Product Feature * Center guide adopts imported materials, high accuracy, resistance to wear and tear.* Shell is made of super hard aluminum, avoid on-site damage equipment, prolong service life.* Pointer block the external type spring coil structure, convenient for friction adjustment, and can guarantee pointer shaft and pointer slider friction force uniform, to ensure the accuracy of the instrument.* Advanced low power consumption power management function, can install screen backlight, voice volume, automatic dormancy, and has the automatic shutdown function.Product Parameters Strong measurement rangetwenty ~ sixty mpaImpact function2.207 J (0.225 KGF. M)Pointer length20.0 + / - 0.2 (mm)Pointer friction0.65 + / - 0.15 (N)Pointer to the largest system static friction force is0.5 ~ 0.8 NJust drill rate constant mean80 + 2Bomb strike rod end spherical radius25 + / - 1.0 (mm)Bomb strike tension spring stiffness7.85 + / - 0.40 (N/cm)Play with the hammer decoupling positionscale line "100" ruling placeBomb strike tension spring working length0.3 mm (mm) 61.5.0Play with the hammer dive locationscale "0" placeSteel anvil rate constant value80 + 2Size270x55x55mmWeight1040 g (including battery)Product Accessories Standard AccessoriesMain UnitCarrying CaseOperation Manual