The robust machine frame is designed to accommodate the high precision loading system and an optical projection screen. Specimen is placed on a testing table. The test cycle is fully automatic. The accurate load is applied on a diamond penetrator by means of a lever and weights. After a specific lapse oftime, the load is removed automatically. The objective is indexed with the test piece and the diamond indentation is projected on the measuring screen. The diagonals of the indentation can be measured by means of the micrometer screw ofthe projection screen.
Couplon's Vickers Hardness Tester is a simple and accurate means to produce and measure the diamond indentation.These testers are suitable for measuring the hardness of precision metallic parts with wide testing range - from softto hard and their accurate results are widely acclaimed. These testers strictly conform to IS: 1754 -1968.