The shock resistant pressure gauge should be maintained once every three months:

1. Check the three-way plug and water storage bend joint to eliminate leaks.

2. Check if the pressure gauge can return to zero.

3. Check and flush the water storage bend to ensure unobstructed flow.

Perform a 2J maintenance on the shock resistant pressure gauge after one year of operation:

1. Disassemble the pressure gauge and send it to the metrology department for verification and lead sealing.

2. Assemble and inspect the water storage bend pipe, ensuring that the threads are intact.

3. Assemble and inspect the three-way plug, grind the sealing surface to ensure tightness and no leakage. The connecting thread should be intact and undamaged.

4. Water storage bend, three-way plug rust removal, and painting.

Replacement of shock resistant pressure gauge during use:

When the pressure gauge is found to be inaccurate during operation, it must be replaced in a timely manner. The operation method is as follows:

1. The replaced pressure gauge must be a pressure gauge with a lead seal and a valid calibration period that has been verified by the metrology department, or a new gauge with a factory qualification certificate.

Before replacing the gauge, it is necessary to turn the three-way plug to the position of flushing the pressure gauge, and flush the dirt inside the water trap pipe.

3. Turn the three-way plug to the position where the water storage bend pipe stores water, use a wrench to remove the old gauge, and replace it with a new pressure gauge.

4. Rotate the three-way plug to its normal working position to put the new gauge into operation.

When looking at the shock resistant pressure gauge first, there are only two main areas to observe, one is the material and the other is the oil inside. Glycerol is prone to solidification when lightning is too low.