Nine maintenance and repair of precision measurement instruments knowledge to properly use precision measuring tools (such as: CMM) is one of the important factors to ensure product quality. Accuracy and reliability of work to maintain gauge, except for the right to use reasonable methods of operation, you must also do the measuring tool maintenance and repair work. One, measuring measuring tool is absolutely not be used as a substitute for other tools. The gauges as toys, such as the percentage of any ruler, etc. in the hand waving or cranking, easy to lose precision measuring tools. Second, the measurement on the machine parts, to other parts after a complete stop, otherwise not only face gauges measuring premature wear and lose accuracy, and can cause accidents. Third, do not coordinate measuring machine precision measuring magnetic fields in the vicinity. Fourth, the temperature great influence on the measurement results, be sure to make parts of precision measurement parts and gauges are in the case of 20 ℃ were measured. When five, found the precise amount has not normal, casual users are not allowed without permission repair, but in order to avoid increasing the gage error. Found that the above case, the user should take the initiative to send the metering station maintenance, and by the test precision measuring tools before you continue. Six, measuring tools after use, should be wiped clean, with the exception of stainless steel with a protective coating gage or persons, the metal surface should be coated with anti-rust oil, on a dedicated box, stored in a dry place to prevent rust. Seven, measuring in use, and other tools do not stacked together, and do not misplacing elsewhere, should be flat on a dedicated box, or to avoid bruising Gage Gage deformation. Eight, before the measurement should be measuring surface and the surface of the part to be measured gauge should wipe clean, so as to avoid the presence of dirt and affect measurement accuracy. Nine, when long-term use of precision measuring tools, metrology station to send regular maintenance and calibration accuracy, so as to avoid showing error gage tolerance caused by product quality accident. This article comes from Optical Instrument Co., Ltd., Dongguan De Xin