How can I verify the calibration of my Laserliner 081 143 CompactCross-Laser Pro?

[KaydenMarie]

To ensure your Laserliner 081 143 CompactCross-Laser Pro is providing accurate measurements, it's essential to check its calibration regularly. Here's how to do it:

Horizontal Calibration Check:

1. Set up: Place the device midway between two walls that are at least 5 meters apart. Turn on the laser cross, and mark point A1 on one wall.
2. Rotate and Mark: Rotate the device 180 degrees and mark point A2 on the opposite wall.
3. Check Tolerance: Position the device near the wall at the height of point A1. Rotate the device 180 degrees and mark point A3 on the same wall. The difference between points A2 and A3 indicates the tolerance. If A2 and A3 differ by more than 0.35 mm/m, an adjustment is needed.
4. Contact for Assistance: If adjustment is necessary, contact your authorized dealer or the UMAREX-LASERLINER Service Department.

Vertical Line Calibration Check:

1. Plumb Bob Setup: Position the device approximately 5 meters from a wall. Hang a plumb bob with a 2.5-meter line, allowing it to swing freely.
2. Alignment: Align the vertical laser line with the plumb line.
3. Tolerance Check: The precision is within tolerance if the deviation between the laser line and the plumb line does not exceed ±1.75 mm.

Horizontal Line Calibration Check:

1. Marking Points: Position the device about 5 meters from a wall. Mark point B on the wall.
2. Lateral Shift: Move the laser cross approximately 2.5 meters to the right and mark point C.
3. Alignment Check: Verify if the horizontal line from point C aligns with point B within ±1.75 mm. Repeat this process by moving the laser to the left.

Important Note:

It is recommended to check the calibration of your Laserliner 081 143 CompactCross-Laser Pro before each use, after transport, and after extended storage periods to ensure precise and reliable measurement results.