MicroLinks VT300 - user guide - Manual (Page 16)

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(I) Crossing Alignment : Press the button for a long
time to display the sign of crossing alignment, and press it
again to shut down the sign. Use the sign to show the
position in which the lens of machine is located and make
the alignment more conveniently in observation .
(J) Scale: Press the button (Confirmation button) for a
long time to display the scale, and press it long time again
to shut down the scale. Press the button of
without
releasing to select different scales. After selection, release
the button. The two types of scales are showed as follows:
L-shaped Scale Crossing Scale
 The scale might be incorrect because of concaved and
convex observed object making the focusing distance is not
standard. For the standard focus, please use the
flushing-way [Please refer to item (2) of Section 1.3].
 The scales will be varied with magnification rates changes.
The unit in the scale is 「μm」. The following scales are
highly precise and provided for the users as references.
Scales of Digital Magnification in 10x Optical Rates
Rate 10x 15x 20x 25x 30x
Scale 102.0 68.00 51.00 40.80 34.00
Rate 35x 40x 45x 47x