Fluke 180LR - Check Product Accuracy; Check Accuracy of Horizontal Laser

180LR, 180LG
Users Manual
6
Check Product Accuracy
Periodically check the accuracy of the Product.
Check Accuracy of Horizontal Laser
To check the accuracy of the horizontal laser:
1. Find a horizontal site that is almost level, preferably a
con
crete slab, that is ≥7.62 m (25 ft) wide with two
o
pposing walls to use as targets. You can also use
scrap wood as targets. See Figure 5.
2. Put the Product about 15 cm (6 in) from target
.
3. Point the horizontal laser at target
.
4. Put a mark
at the point where the horizontal laser
intersects the target area.
5. Turn the Product 180 ° on its center so that the
h
orizontal laser intersects with target
.
6. Put a mark
at the point where the horizontal laser
intersects the target area.
7. Repeat steps 2 through 6 with the Product 15 cm from
target
.
8. Measure the distance between mark
and mark
on target
and mark and mark on target .
If the distances are the same, the laser is within
calibration.
9. If the distances are not the same, subtract the lesser
m
easurement from the greater measurement and divide
by two to calculate the difference of error.
If the distance is ≤3 mm @ 9 m, the laser is within
calibrat
ion accuracy.