Hitachi TM3000 Instruction Manual page 82

8. On the Operation window, an [Observation Screen Size ...] window and a red line are
displayed.
Figure 2.2.9-8 Observation Screen Size Setup Window
9. Using a ruler, measure the length of the red line displayed on the Operation window.
Figure 2.2.9-9 Measuring the Observation Screen Size
NOTE : Measure the length of the red line in units of mm. An inaccurate length of the red
line may result in an inaccurate magnification factor on the observation screen.
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