What are the common failure problems of precision pressure gauges

1. The precision pressure gauge has no indication (the pointer does not move);
(1) The spring tube or pressure guiding tube is blocked;
(2) The stop valve is not opened;
(3) The transmission mechanism fails or jams;
(4) Air leakage.
2. The pointer moves sluggishly;
(1) The pointer touches the glass or dial;
(2) The central gear shaft is bent.
3. The pointer jumps;
(1) The transmission part is not well matched;
(2) Deformation of gears and shafts;
(3) The movement of the pull rod at the free end of the spring tube is blocked;
(4) The outer end of the balance spring collides with the parts;
(5) The movable screw between the tie rod and the sector gear is not flexible.
4. The pointer does not return to zero;
(1) The balance spring torque is insufficient;
(2) The pointer is bent or loose;
(3) The zero point is not corrected;
(4) The spring tube is deformed;
(5) Improper positioning of the movement.
5. Inaccurate indication of precision pressure gauge.
(1) The influence of temperature;
(2) The influence of vibration;
(3) The impact of overload.

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