Stainless steel pressure gauge pointer does not return to zero what are the reasons
1, before the pressure gauge used, takes place the gauge from the zero, first a special circumstances, some low range, outside diameter is larger pressure gauge, only this would happen, flat vertical, but when the pressure gauge pointer to zero, this kind of circumstance is not gauge pressure is zero, but should also be qualified products.
2. Negligence and non-standard operation in the production process. First, assembly, some installation parts assembly screw did not tighten, in the process of logistics transport strong vibration or artificial damage, all cause the above situation, such as the movement of the sandwich, dial, movement and connection head, these screws are not tight in place, are likely to cause the pressure gauge pointer in the transport from zero.
3. The stitching is not firm when verifying the pressure gauge. Similarly, in the process of logistics and transportation, due to the long journey, bumpy road, or some human factors, the pointer of the stainless steel pressure gauge may not return to zero.
If, the pressure gauge to the hands of consumers is normal, then in the use, we should pay attention to what aspects?
1, the field use is the touchstone of the quality of test pressure gauge, because of the complexity and the diversity of the work environment in use due to the working environment is severe vibration, despite the pressure gauge, also has a limit, can't be capable of withstanding the intense shaking, but if there is a screw is not tight pressure gauge before delivery in place, can cause the pull rod is loose, dislocation of the dial, the movement of the movement, and so on and so forth, all of which can be directly lead to gauge from the zero.
2, the user improper operation, excessive pressure beyond the limit of the range of the pressure gauge even two times, will produce spring tube deformation, inelastic deformation, or movement fan tooth tooth, as the saying is "the pressure gauge hit", in fact, is the user in the operation of excessive pressure pressure to break the pressure gauge, resulting in the pressure gauge pointer is not to zero.
3, because the spring tube in the pressure gauge elasticity continues to produce force, so even if the operation is appropriate, after using for a long time, will still appear the pressure gauge pointer from zero, generally this situation appears in the 10MPa above the large range of pressure gauges in the majority.
So, stainless steel pressure gauge as a precise pressure measuring device, regardless of whether in the production, transportation and use, should be cautious and cautious, not the least bit careless, with a serious and responsible production attitude, and the use of the rules of strict specifications, to let each pressure gauge play its role.
