1. What is the liquid in the spirit level?
There will be a level bubble in the level, and there will be liquid flowing in it, and the water bubble in the level will move along with it. The level is used to measure the level, so what is the liquid in the level?
In fact, the liquid in the level is not ordinary water, but a mixed liquid of alcohol, glycerin, ethanol and water, which is made into the level after a specific ratio. The reason for using this liquid, Because the level requires that the liquid will not freeze, has good fluidity, good stability, and can fluoresce.
2. How to calibrate the digital level
The traditional hand-held level is generally calibrated with a standard. With the development of technology, the invention of the digital level has made the level calibration easier, just press the "calibration button", the following is for everyone. Introduce how to calibrate the digital level:
1. Put the spirit level on a plane no more than 3* (can be compared with the spirit level) and wait for 10 seconds.
2. Press the calibration button once, the display will show CAL1.
3. Rotate the digital level by 180°, wait for 10 seconds, then press the calibration button, the display will display CAL2, after about 5 seconds, the LCD will display "Succ' buzzer beeps three times continuously, Calibration was successful.
4. If after calibration, the LCD screen displays three dashes ---", which means that the level is not parallel to the horizontal plane at the end of the rotation, and the calibration is not successful, you can re-calibrate.
