precision. Normally phase I is firstly chose for glancing adjustment, then choose
phase II for fine adjustment.
➜
Level adjustment should be done at “X, Y” direction respectively on the inspected
surface.
4.4 Straightness and Flatness Measurement
E-level meter inspect straightness and flatness, adopting section distance method, sepa-
rate the inspected surface into skits of sections, use Digital E-level meter measure the
angle change (the height difference) relative to the natural level, then converse it to lin-
earity value as per the length of this section. After data processing, then get the straight-
ness error of the inspected surface.
Through inspect the straightness errors of some representation sections, according to the
correlation of these sections, have the data processing as per assess principle, get the
flatness error of the inspected surface. The measure points on the inspected surface nor-
mally line by diagonal or reseau.
Please reference to concerned metrology and inspection rules for more detailed contents
of the straightness, flatness inspection and data processing.
Reminding
➜
Before the inspection, the inspected surface need to be adjusted to be at level mode.
➜
Digital E-level meter need to be fixed reliably on the span bridge.
➜
Measuring unit should be chosen“mm/m”.
➜
The direction of the handgrip of the E-level meter should be opposite to the measuring
move direction during the measurement.
➜
Notice the move track of the bridge
board. When move the bridge, the
beginning and the end need to be
ensured joined and the moving track
should be a straight line.
➜
When adopt the method measure points line by diagonal, after begin the inspection of
every inspected section, the Digital E-level meter could not be adjusted during the
whole inspection period.
➜
When adopt the method measure points line by reseau, if use equal span to inspect,
the Digital E-level meter could not be adjusted during the whole inspection period.
move
14
Status
Pro
–
µLevel User Guide
OPERATION GUIDE
