Measurement of straightness and center line relative to an absolute plumbline
is done on for example turbine and generator shafts. The measurement program
uses the self calibration that is performed when indexing the laser transmitter
180° (D22).
Plan the measurement by placing the laser transmitter at the first "side" of
the shaft (9 o'clock). Record all measurement values along this side, then move
the transmitter to the opposite side, 3 o'clock (indexing), and record values
at points at the same height as before. After this, do the same for the other
direction, 12 and 6 o'clock, to get the angle of the shaft.
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Plumbline measurement (EasyLink™).
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