Proceq Zehntner ZRM 6006, Инструкция по эксплуатации

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Ensure that the marking you want to measure is as flat as possible along in the
whole range of the measuring instrument. Otherwise, the measuring geometry
would be adulterated. Crooked or twisted samples will cause incorrect measuring
results. For unevenness from -1 mm up to 5 mm, the given measuring geometry is
warranted
The procedure for measurement in the laboratory is the same. Observe likewise
that the samples are absolutely flat. The length of the samples should be at least
500 mm in order to guarantee that the instrument stands on all 3 feet.
Make sure to use large enough, absolutely plane samples, insensitive to
moisture, as e.g. sheet steel.
7.2 Measuring profiled markings from 5-12 mm
The ZRM 6006 is capable of measuring profiled road markings with profiles up to 5
mm. However, if the profile is higher than 5 mm you will need to follow a certain
procedure in order to get reasonable values.
If the distance between the profiles is more than 300 mm, a support plate is needed
with the same height as the profile to ensure the correct measuring geometries.