VIBROTEST 60
Technical Data
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© VTEST60E July 2013 V4.46ff
C102 853.002
Page 163 of 168
12.5.4 Reference mark
The reference mark, also called "light/dark mark", is applied to
a suitable point on the shaft surface. Its reflecting power should
be clearly distinguishable from the surrounding surface.
It can be either light-absorbing or light-reflecting. The colour is
of no importance.
The mark may be attached to the circumference or to one end
face of the shaft.
The
light-absorbent
mark can be, e.g. a:
•
matt black paint finish
•
matt black adhesive tape
•
sand-blasted surface
The
light-reflective
mark can be, e.g. a:
•
part of the shiny shaft itself
•
strip of aluminium bronze
•
piece of reflective tape (see page 148)
The mark must be at least 5 mm wide !
