· HR450 can be used directly to measure Rockwell Superficial hardness for metal and plastic material.
· Provided with many features such as high measuring precision, wide measuring range with 15 Rockwell scales.
· Automatic test force switch according the selected scale without manual operation.
· Automatic load cycle. The loading, dwell, unloading process of the main test force are controlled exactly to meet standard.
· Measuring results digitally displaying and can be printed, or transmitted to external computer automatically.
· The tester is suitable for testing of carbon steel, alloy steel, cast iron, non ferrous metal, and engineering plastic etc.,especially small and thin parts.
· Test value can be transformed to the value of HB, HV, HK and σb value.
· The tester meets all the following standards such as ISO 6508-2, ASTM E18, BS EN ISO6508-2, GB/T230.2.
· Preload：29.4N（3kgf）
· Total test force：147.1N(15kgf), 294.3N(30kgf), 441.3N(45kgf)
· Scales：HR15N, HR30N, HR45N, HR15T, HR30T, HR45T, HR15W, HR30W, HR45W, HR15X, HR30X, HR45X, HR15Y, HR30Y, HR45Y
· Load cycle： 3～8s
· Load dwell duration： 2～50s, can be set
· Resolution ：0.1HR
· Display：High definition backlight LCD
· Operation：Menu selectable, Membrane keypad
· Upper/lower limits setting & alarming
· Data statistics: Avg., Max., Min., S, R available
· Curved surface correcting automatically
· Memory: Max 500 items of test results stored automatically
· Data output: RS-232 to micro printer, USB port to external PC
· Testing space：200mm in vertical, 165mm in horizontal
· Dimensions： 550mm×200mm×720mm
· Power supply: AC, 220V/110V, 50～60Hz, 4A