Do you know the reason why the pointer of diaphragm pressure gauge is broken?

Causes of rupture of pointer of diaphragm pressure gauge;

Improper operation of field staff of diaphragm pressure gauge, such as rapid pressure relief. So that the pointer bounces back to the nail at a faster speed, and the pointer is broken after repeated times. Generally speaking, the pointer is broken because the material of the pointer is too soft and the rigidity is poor. After the impact, the lighter pointer bends and the heavier pointer breaks. The main responsibility for the interruption of the pointer lies with the manufacturer. The rigidity of the pointer is too poor or the prompt is not enough. Determine the cause of the pointer interrupt. If it is the manufacturer's fault, check other pointers in time. If it is used improperly, the user should correct it in time.

Diaphragm pressure gauge manufacturers need to meet the requirements of drawing design, have the right brand and qualified mechanical properties, especially stiffness, when purchasing pressure gauge pointer materials. For the pointer of special pressure gauge, if the materials on the domestic market can't meet the design requirements, the imported materials can be used, and users can also negotiate, replace other materials or terminate production. Users of diaphragm pressure gauges should operate in strict accordance with the requirements in the instruction manual of the pressure gauge, and install pressure dampers or pressure overpressure protectors when necessary to protect the pressure gauge pointer from damage.

Matters needing attention in using diaphragm pressure gauge

1. After the daily work of diaphragm pressure gauge, the standard meter should not be left on the calibrator to prevent collision and vibration caused by zero change. The spring tube of standard instrument should be cleaned regularly to remove the dirty liquid brought by the instrument under test during calibration, and to prevent corrosion, which will affect the accuracy over time.

2. Each screw of diaphragm pressure gauge is not allowed to loosen. It is particularly important to tighten the screw for fixing the movement and the indicating adjustment screw. It should be noted that after the screw for fixing the movement is installed, the notch at the top for twisting should not be in the horizontal direction to avoid the hairspring being embedded.

3. Unqualified pressure instruments and stainless steel shock-resistant instruments should be degraded and used, and the accuracy grade marks should be changed.

4. Repair the paint-removed part, check whether the color of the gasket ring of the diaphragm pressure gauge meets the requirements of the medium used, wipe off the dirt on the dial and glass, and then install the shell.

5. After the shell is installed, the pressure gauge manufacturer should check whether the pointer shaft and pointer piece touch the glass, and then gently shake the meter body to listen for noise to avoid parts or sundries from entering.

6. Seal the device with a verification seal, and then remove the stainless steel pressure gauge from the connector of the calibrator and deliver it to use.

Matters needing attention in the use of stainless steel seismic table

Release date: February 21, 2022 Author: Click: 78

The shell and internal original parts of the stainless steel earthquake-resistant gauge are made of stainless steel, and silicone oil is filled in the gauge body, so that the pointer of the pressure gauge plays a role in shock absorption and earthquake resistance. The stainless steel shock-resistant pressure gauge has both the shock-resistant performance and the corrosion-resistant performance of the stainless steel pressure gauge. The stainless steel shock-resistant pressure gauge is suitable for occasions where the vibration of industrial and mining sites is large and the measured medium is corrosive.

Stainless steel earthquake-resistant table

1. The instrument needs to be vertical: it should be tightened with a 17mm wrench during installation, and the case should not be forcibly twisted; Collision should be avoided during transportation.

2. The instrument should be used at the ambient temperature of -25~55℃.

3, the use of working environment vibration frequency < 25HZ, amplitude is not more than 1 mm..

4. In use, because the ambient temperature is too high, the indicated value of the instrument does not return to zero or the indicated value is out of tolerance. You can cut off the sealing rubber plug at the upper part of the watch case to make the inner cavity of the instrument communicate with the atmosphere.

5. The application range of the instrument should be between 1/3 and 2/3 of the upper limit.

6. When measuring corrosive media, media that may crystallize and media with high viscosity, isolation devices should be added.

7, the instrument should be regularly checked (at least once every three months), if found fault should be repaired in time.

8. If the instrument fails or is damaged due to poor manufacturing quality under normal storage and use conditions within half a year from the date of delivery, the company shall be responsible for repairing or replacing it.

9. Instruments for measuring corrosive media are needed, and the requirements should be indicated when ordering.

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