What items should be paid attention to in routine maintenance of electronic measuring instruments?
Place the instrument in the middle of the two fixed points, mark the horizontal line of two points, called a and B lines, move the instrument to one end of the fixed point, mark the horizontal line of two points, called a ', B'. If the calculation of AB = a 'B', the horizontal misalignment numerical telescope half. Adjust the top and bottom screws of the level with the school needle so that the horizontal bubbles of the pipe coincide. Repeat the above until equal.
In the unknown between the two points were removed three level tripod, placed in the three foot from the instrument box, using three seat screw leveling, the circular bubble center, followed by leveling tube level. Level systemThe starting wheel is flat, and is horizontally reflected in the horizontal mirror, which is flat water. Align the telescope on the tower at the unknown point (1), and again align the tube level,Read the reading of the tower ruler (after sight), rotate the telescope to the tower at the unknown point (2), adjust the tube level, read the reading of the tower scale (forward view), and record it on the record.
1. telescope 2. adjust handwheel 3. circle level 4. fine adjustment handwheel5. horizontal brake handwheel, 6. pipe level, 7. horizontal fine-tuning handwheel, 8. feet
1. level instrument is a precise optical instrument. Correct and reasonable use and storage are of great importance to the accuracy and life of the instrument;2., avoid direct sunlight, do not permit the demolition of equipment without any excuse;3., each fine-tuning should be gently rotating, do not force too large. Lenses and optical plates are not allowed to touch the sheet by hand;4. the instrument is out of order and repaired by the familiar instrument maker or repair department;5. after each use, wipe the instrument clean and keep dry.
