Field Calibration Test - Kapro Prolaser 896 5-DOT Manual Del Usuario

Field Calibration Test

The laser unit leaves the factory fully calibrated. Kapro recommends
that the laser pointer is checked regularly, and after the unit has been
dropped or mishandled.
Checking accuracy – Plumb
1. Press the ON/OFF key on the keypad.
2. Place the unit on a tripod approximately 1m above the floor and 3m
from the ceiling.
3. Mark the Plumb Up and Plumb Down points on the ceiling and floor
4. Rotate the unit 180° and align the Plumb Down point with the mark
on the floor.
5. Mark the Plumb Up point on the ceiling.
6. Measure the distance between the two marks on the ceiling. If the
distance is less than or equal to 3mm, then the unit is calibrated.
Checking accuracy – Level
1. Press the ON/OFF key on the keypad.
2. Set up the unit between two walls at a distance of about 2.5m from
each wall.
3. Make a point on one of the walls (A1).
4. Rotate the unit 180°, and mark a point on the opposite wall (A2).
5. Move the unit to a distance of about 0.5m away from the first wall,
rotate to face the first wall and mark a second point (B1).
6. Rotate the unit 180, and mark a second point on the opposite
wall (B2).
7. Calculate (A1-B1) – (A2-B2). If the difference is less than or equal to
3mm, then the unit is calibrated.
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