18-8
18 CHECKS AND ADJUSTMENTS
3) Place the ES at point C directly between points A and B and
set up the reflective prism at point A.
4) Precisely measure the horizontal distances CA and CB 10
times each and calculate the average value for each
distance.
5) Calculate the additive distance constant K as follows.
K = AB - (CA+CB)
6) Repeat steps 1 to 5 two or three times.
If the additive distance constant K is within ±3mm even
once, adjustment is unnecessary.
If it always exceeds this range, have our service
representative perform an adjustment.
18.7 Checking and Adjusting of Laser Plummet
Checks and adjustments are performed using an adjustment target (cut out and use targets printed at
the back of this manual). As this target is made of paper great care must be taken to prevent it getting
wet.
Checking
1) Level the instrument and emit the laser plummet beam.
see Section 2.5.2 “Levelling”.
2) Rotate the upper part horizontally and place a target so that
it is aligned with the center of the circle created by the
rotating laser plummet beam.
•
Laser beam remains centered on the center of the
target – No adjustment necessary
•
Laser beam strays from the center of the target –
Adjustment necessary.
•
Laser beam draws a circle outside the target circle –
Contact your local dealer.
Adjusting
1) Turn the laser plummet adjustment cap anticlockwise and
remove.
2) Emit the laser plummet beam.
3) Note the current position (x) of the laser beam.
5mm
