1. The pressure of the measured medium is large;
2. The installation position of the pressure gauge is large.
Second, the seismic pressure gauge has no indication:
1. The shut-off valve on the pressure guiding tube is not open;
2. The pressure guiding tube is blocked;
3. The dirt in the spring pipe joint is too much and blocked;
4, the spring tube splits;
5. The center tooth and the fan tooth wear too much, so that it cannot be engaged.
Third, the seismic pressure gauge pressure indication error is uneven:
1. The spring tube deformation is invalid;
2. The free end of the spring tube and the sector gear, the gear ratio of the connecting rod is improperly adjusted.
Fourth, the shock gauge pointer has a beating or sluggish phenomenon:
1. The pointer touches the surface glass or the scale to have a friction;
2. The center gear shaft is bent;
3. The two gears are meshed with dirt;
4. The movable screw between the connecting rod and the fan gear is not flexible.
5. After the pressure of the seismic pressure gauge is removed, the pointer cannot be restored to zero:
1, the pointer is bent;
2, short hair loss is insufficient;
3, the pointer is loose;
4. The transmission gear has a friction.
Sixth, the transmission ratio is out of adjustment.
7. The indication of the seismic pressure gauge is low:
1. Gear ratio imbalance;
2. The spring tube has leakage;
3. The pointer or the transmission mechanism has a friction;
4. The pressure guiding pipeline is leaking.
8. The shock gauge pointer cannot indicate the upper limit scale:
1. The transmission ratio is small;
2. The movement is fixed at the position of the machine base;
3. The spring tube is not properly welded.
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