EJA Single Flange Pressure Transmitter 438N Series
Thread Content
What are the reasons for the damage of the diaphragm box when measuring pressure inside a tank?
It may be caused by the negative pressure inside the storage tank.
1. The negative pressure exceeds the tolerance of the transmitter diaphragm. 2. The liquid-contacting diaphragm is corroded. 3. The liquid-contacting diaphragm has mechanical damage
What level of negative pressure is needed, and how long before it breaks?
Looking at the trend, no negative pressure is generated； The tank under measurement contains powder material and circulating gas, with the transmitter installed at the top of the tank.
The most common reasons are already listed on the third floor; the poster is still advised to describe the operating conditions in as much detail as possible. If the diaphragm box is damaged, it would be best to take a photo and share it with everyone, so that they can more accurately identify the problem
Take a photo – is it a bulge in the diaphragm box or is the diaphragm box damaged? Please explain it clearly: lol