2, adjust the foot screw, make the bubble in the center of the circular level, accurately aim at the target with a telescope, and locate the measuring position.
3. Use the middle line of the crosshair to read on the leveling staff, from decimal to large, and read four numbers.
4. Target height = rear scale reading+rear view height-front scale reading.
Matters needing attention in using liquid level gauge:
1, before using the instrument to measure, it is necessary to clean the surface with water, and at the same time, check the surface of the instrument for scratches, corrosion and other problems. If you have these problems, you must deal with them immediately to prevent the instrument from being inaccurate.
2. Also check whether this instrument is zero. If it is not in the zero position, it needs to be adjusted before it can be used. When adjusting, the instrument should be placed on the flat plate to read the scale of the bubble tube.
3. Pay attention to the temperature when measuring. The use of liquid level gauge will also be affected by some environmental temperatures, so it is best to avoid high temperature environment, otherwise it will affect the meter reading. When in use, the instrument should not be exposed to direct sunlight, let alone breathe into the level, otherwise it will have some influence on the reading of the level.
4, when using, to read the position of the vertical level, to prevent some errors in reading, also have an impact on the measurement results.
5. Attention should also be paid to the storage of liquid level meter. It must be placed in a dry and ventilated environment, and some radioactive objects cannot be placed nearby to prevent the instrument from being damaged. When in use, the instrument will not get wet or be damaged.