NOVOTEST.ED.Т-UD3.000 OMOperation ManualHardness Tester NOVOTEST T-UD3Page. 24Fi 2.17 – Pushing the trigger button of the probe12. After pushing the trigger button and the Impact Body hits the surface the measured hardnessvalue will appear on the display. (Fig. 2.18).Figure 2.18 – The display after the measuring with the Leeb probeCaution!The minimal distance between the points of measuring should be not less than 3 mm. Do not repeatmeasurements on the same place, because the ??Repeated measurements at the same point are not allowed. They give overestimated indications of thehardness of the product due to metal cold work in the imprint zone.2.3.6 Measurement modesEnter measurement mode and push < > key to enter the mode selection menu (fig. 2.19). Thedevice will offer you the following measurement modes: GRAPH – graph drawing mode; HISTOGRAM – histogram building mode; STATISTICS – statistics mode; INTELLECTUAL – measurement failure filtration mode; SIGNAL – signal displaying mode (for the Leeb probe only).