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Although every unit has been calibrated in the factory before shipping,
it is also the user’s responsibility to check the accuracy of the units
before use to avoid costly mistakes.
Checking Horizontal Accuracy
1. Set up the unit at around 98ft(-3ft) away from the wall (or a rod), with
the X direction (check the mark on the top of the unit) aiming toward
the wall.
2. Power on the unit and wait until the unit is leveled. Mark the current
laser line on the wall and name it with
h1
. If it’s difficult to see the laser
line, the detector can help.
3. Rotate the unit 180° so the -X direction is aiming towards the wall.
4. Wait until the unit is leveled. Find the laser line on the wall and mark
it as
h2
.
5. The error of the X direction will be h1-h2 and it is required to be
within
+/- 1/16in.
6. Check the Y axis through the same method.
7) If the error of any axis exceeds the criteria, the unit needs to be sent
to an authorized service center and calibrated.
6. CHECKING CALIBRATION
Figure 1
