LaserLiner CoatingTest-Master Bedienungsanleitung Seite 25

Notes on measurement
• When the device is turned on, the minimum distance from the metal
should not be less than 10 cm.
• To ensure measurements are as precise as possible, calibrating the
device with the uncoated original test piece material to be measured is
recommended before performing each measurement. If necessary, correct
using zero calibration, one-point calibration or two-point calibration.
• If the uncoated original material is not available, use a material that is as
similar as possible or the reference material supplied.
• The measurement device has basic calibration settings for ferromagnetic and
non-ferromagnetic metals. Using different kinds of metal bonds/alloys, and
performing measurements with high precision within defined ranges, may
require the measurement device to be calibrated.
• The absolute measuring accuracy is highly dependent on the alignment of
the reference films, which should be clean and free from damage.
• Measuring accuracy levels must take the following tolerances into account:
device, reference film, original material/alloys, surface roughness/bending
radius, contamination, handling (tangential setting down without vibrations).
• Separate calibration processes are performed for Fe and NFe. The
calibration settings are retained when the device is turned off.
• Averaging and statistics may increase the calibration accuracy. To achieve
this, repeat zero calibration, one-point calibration and two-point calibration
at least three to five times.
• If errors take place in the calibration process, the individual calibration must
be deleted before the process is repeated (see item, 7, Current data).
• If deviations that cannot be explained arise, the memory must be erased
completely (see item 7, Group data).
• Performing multiple statistical measurements increases measuring accuracy;
additionally, statistics for multiple distributed points can be used to
determine the average coating thickness.
• Interference fields may affect measurement.
• During measurement, keep the device as straight, tangential and still as
possible.
• Make sure the surfaces of the material, sensor and reference films are clean.
Dust, for example, may result in serious inaccuracies.
CoatingTest-Master
25
EN