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Attention This Instruction Manual shall be carefully read through in prior to use of the apparatus to clearly understand the detailed operation steps and special notes, and avoid apparatus damage or personal injury caused by improper use. Descripition 1 — indentation depth under initial test force F0; The hardness values can be read directly from the Rockwell and after 2 —...
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Set the full scale line to “0”: Main Technical Parameters Rotate the rotational drum dial anticlockwise until its pin rests against the upper edge of the magnifier. Meanwhile, the operator should adjust Initial test force: 10kg the observing angle to make the full-scale benchmark line on the fixed Test force: 30, 100, 150kg drum dial (the red scale mark 130, black scale mark 100) exactly Force applying method: by screw...
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Take the reading: Looking through the magnifier, determine the superposition of reading line of the barrel dial aligned with that of the magnifier, the value of which represents the hardness value of this test. Each long scale mark on the rotational drum dial represents 10 hardness units, and the value is shown above the mark.
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