Working conditions of the laser level
1. The instrument works under the condition of 15~25℃.
2. Appearance
The working surface of the instrument must not have trachoma, pores, bruises, scratches, burrs, rust and other defects that affect the use; the exposed non-working surface must not have pores, trachoma, cracks, rust and other obvious defects.
The electroplating layer of the instrument should be uniform and smooth. The painted surface of the instrument must not have obvious defects such as paint peeling, spots, scratches and uneven color that affect the appearance quality.
All engraved lines, numbers and signs of the instrument should be clear. The connection between the sensor and the indicator (or display) and the connector should be intact and reliable.
The surface of the plastic shell and handle of the instrument is uniform in color, smooth and beautiful, without defects such as bubbles and cracks.
3. Tilt change
When the instrument sensor is evenly tilted, the indicator (or display) should change smoothly accordingly.
The zero adjustment device and the extended range device of the instrument work stably and reliably.
4. Requirements for parts
The surface roughness Ra value of the working surface of the grinding instrument should not be greater than 0.4 μm.
The number of bonding points on the working surface of the scraping instrument shall not be less than 25 points within the range of 25mm×25mm.
5. The hardness of the working surface of the instrument shall not be lower than 180HB.
6. The instrument should be subjected to high temperature test, low temperature test and continuous impact test under the condition of transportation and packaging.
