HOW PROPERLY TO USE A LASER LEVEL
Start by setting up the laser level on a tripod or flat surface. If it’s a manual level, make sure the bubble vial shows level. Otherwise, it will take a moment to level itself when you turn the device on. The unit will emit a laser that will show level on a wall or across an outdoor workspace. And depending on the model, it could be dot, multiple-line, or rotary (which will show level at 360 degrees horizontally or vertically). You can use a laser detector to intercept the laser if there’s no wall to “catch” it. Connect it to a measuring rod and adjust it up or down until you hear a beep. Secure the laser level detector to the rod and make the appropriate measurements.
HOW TO CALIBRATE A LASER LEVEL
Start by setting up the laser level on a tripod about 100 feet from a wall, and rotate it with the front pointing to the wall. Turn on the detector and the laser level. When the detector gives you the signal that shows levelness, make a mark on the wall. Rotate the laser 180 degrees, and make a level mark with the detector again. Measure the distance between both marks. And if it’s within the device’s specified accuracy, it’s correct. Rotate the laser 90 degrees, and make a mark using the detector. Measure the distance between this mark and the previous one. If it’s within the device’s specified accuracy, it’s also correct. But if it’s out of range, it will need to be professionally calibrated.