Features: Model No. 900-420 Superficial Rockwell Hardness Tester
This digital Superficial Rockwell hardness tester with fully automated load/unload procedures affords highly sensitive and accurate readings. Micro computer controlled Touch Screen with USB output to flash drive. The 900-420 digital Superficial Rockwell hardness tester offers programmable scale conversions, dwell times, statistical capabilities and test counter.
Capable of testing in all of the Superficial Rockwell hardness scales.
Direct Loading Method With Load-Cell Instead Of Dead Weight System. High Speed Test Cycle and Extremely Accurate Loading Control
Automatic conversions to HB, HV, Superficial Rockwell Scales
Touch Screen selectable system
Upper/Lower Limit Settings
Test resolution: 0.01HR Rockwell unit;
Operation temperature: 50° - 95°F (10ᵒC～35ᵒC)
Ambient environment: clean, no vibration, no strong magnetic field,
and no corrosive medium;
Power supply: single phase, AC, 110-220 with manual change, 50～60Hz, 4A;