How to calibrate the level ruler? Do I need to calibrate the level ruler every time?
A ruler is a detection tool mainly used to measure wall verticality, wall flatness, ground flatness, levelness or slope. There are four types of rulers: student ruler, vertical detection ruler, diameter measuring ruler, and engineering quality detector. It is a type of horizontal ruler and is widely used in construction and decoration projects.
How to calibrate a horizontal ruler
The range of use of a ruler is wide, and it is often used. However, if the ruler is not accurate, it will affect the measurement effect and construction. Therefore, if the ruler is found to be inaccurate and needs to be calibrated, how can it be calibrated?
When testing, if any deviation is found in the pointer value of the ruler, the ruler to be calibrated should be placed on a standard for calibration and adjustment. The standard can be self-made. Install a horizontal square wood or aluminum profile about 2.2 meters long on the wall, adjust it vertically with a plumb line, place the ruler on the standard horizontal object, and use a Phillips screwdriver to adjust the "S" screw of the level tube to center the bubble.
Do we need to calibrate the ruler every time
When measuring in practice, the accuracy of the ruler is very important. If an inaccurate ruler is used, it will cause great trouble and loss to the construction. Therefore, it is necessary to calibrate the ruler regularly. Do we need to calibrate it every time we use the ruler?
According to the calibration standards for rulers, rulers need to be calibrated after a period of use. The specific usage time varies depending on the frequency of use. Rulers that are frequently used usually need to be calibrated every two to three days. Strictly speaking, calibration is required every time they are used, but in reality, it can be troublesome to calibrate every time they are used, so this is usually not done.
Additionally, it should be noted that when choosing a ruler, it is advisable to choose one with higher accuracy. New rulers have higher accuracy and do not require frequent calibration, as they will need to be calibrated regularly over time; Also, if a ruler has not been used for a long time, it should be measured for accuracy before being used again. If it is not accurate, it must be calibrated before use.
