Let's understand in the process of use, spring tube pressure gauge in the measurement of some common faults?
1. No display on the pressure gauge
When measuring the spring tube pressure gauge, the pressure gauge pointer is static without displacement transformation or small amplitude swing back to the zero scale position, that is, the pressure gauge does not show the problem. The main reason for this phenomenon is that there are more dust and macromolecular particles in the working environment, and the lack of corresponding dust and dust removal measures in the measurement environment. In the long run, macromolecular substances are attached to the spring pipe to block the pipe, and then affect the normal measurement of the spring tube pressure gauge. Bourdon tube type pressure gauge in the use of time is too long, it is also one of the cause of pressure gauge can't display bourdon tube type pressure gauge of use for a long time lead to internal gear wear serious, unable to function efficiently, spring is elastic under chronic stress pulling capacity dropped substantially, the pressure gauge is detected pressure, can't show the pressure value.
2. The pointer rotates slowly or beats too much
The reason why the pointer of the spring tube type pressure gauge rotates slowly or jumps too much is that the transmission part itself is damaged or there is too much dust particles and oil scale between the transmission parts, which affects the normal rotation of the transmission parts and leads to the slow rotation of the pointer. The connection gap between the free end and the connecting rod is also one of the reasons for the irregular beating of the pressure gauge. When the two parts are loose, the pressure action cannot be effectively transferred to the spring pipe, making the value cannot be accurately displayed. In addition, the pointer damaged bending, the measured medium by its own pressure fluctuations and other circumstances will also make the pointer rotation stop or large jump.
3. The measurement pointer cannot return to zero
After the completion of the measurement of the spring tube pressure gauge, the pointer is not zero scale: the initial position of the pressure gauge before the measurement is not zero scale, so the pointer back after the measurement is not zero scale; Or bourdon tube type pressure gauge standard of balance spring torque is low, when the pressure measurement, as a result of the pressure driver can run normally, but when the end of the test torque strength can not meet the standard, the inside of the pressure gauge structure deformation, the gear change is bigger, the rotation of the friction between the gear cannot function properly, and then make the pointer points to is not zero calibration.
4. The measuring personnel are not professional enough
Bourdon tube type pressure gauge has simple structure, working principle and easy to understand, cause the user to the operation of the instrument used is not rigorous, not to deep understanding and operation of pressure gauge, however bourdon tube type pressure gauge to use environment, installation parts, exterior parts and related protection measures the demand is higher, if the operation is not standard, makes the service life of bourdon tube type pressure gauge significantly shortened, The pressure gauge does not maintain good working condition. The wrong operation and use will often make the gauge only after a few times of use, its measurement accuracy will be greatly reduced or even scrapped. The requirement of measuring personnel is not only to be able to reasonably standardize the use of spring tube type pressure gauge, but also to have the consciousness of management and protection after measurement, so the use of institutions need to refer to professionals for the measurement of spring tube type pressure gauge.
