[Daily question 20090414] Pressure transmitter usage survey
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Since there are many pressure transmitter manufacturers at present, we will collect pressure transmitters that everyone has used. Which manufacturer is it from? What is the measuring range? Is it effective? (You can explain in detail whether it is an ordinary pressure tube, a double flange diaphragm, a single flange, etc. You can share your good experience together)
Why doesn’t anyone discuss this? Let’s talk about the Rosemount double flange differential pressure transmitter I use, with a range of 0 to 1500 double flange.: 3051TG3A2B21AI1S1 and 1199WDA95DFFWGGDA00 are used to measure sulfuric acid liquid level. The diaphragm used is made of tantalum. However, for capillary, heat tracing is required, and electric heating is used.
Used pressure transmitter manufacturers include: 1. Rosemount 1151AP\GP, 2088, 3051\S\T\C series 2, EJA series 3, Honeywell STG94, 97 series all have good results. When selecting equipment of the same level, the key is to determine the final use based on the price during bidding.
Used pressure transmitter manufacturers include: 1. Rosemount 1151AP\GP, 3051\S\T\C series 2. Yokogawa EJA series 3. foxboro. The first two are the most used and the effect is pretty good. Foxboro has too much zero point drift and is not very useful. It seems to have been discontinued now.
The most commonly used products are Yokogawa EJA products, with single and double flanges, as well as those without flanges. It mainly depends on the medium. The pressure range is from 100KPa to 2MPa. There are several Rosemount products that are useful, and they are included with the machine.
The one we use most is EJA. Common pressure tubes with a range of 0-14MPa have been used. Single-flange ones have a range of 0-100KPa. The second one is Rosemount 3051, which has a range of 0-20 MPa. Then there are SIEMENS and ABB, but they are less used. I feel that the stability of EJA is better. Nowadays, I basically choose EJA: victory:
The most commonly used transmitter is EJA. There are two agents, Sichuan Instrument and Xiyi, and the results are good. Two years ago, I heard that the contract was about to expire, and the Japanese side would not renew the contract with Xiyi. I wonder what the situation is now? Sichuan Yi's products seem to be cheaper, and ABB's products are also good, but they are super expensive and the accessories are not easy to buy. Nowadays, it is estimated that colleagues in the industry also replace the entire transformer when it fails, instead of replacing damaged parts as before, right?
Most of the ones used in our factory are made in China, from Zhuhai Tianli, and the effect is average.
1199WDA95DFFWGGDA00 This 1199 is made of 316L, not tantalum. Tantalum is DC 3051, which is really good. If it is micro-pressure, it is still 1151, followed by EJA and E+H.
I mainly come into contact with petrochemical companies, mainly Rosenmount products. The quality and performance are excellent, but the price is expensive.
Excuse me: What will happen if there is no heat tracing?
Our company uses Kawaiki Yokogawa EJA products the most. Common pressure pipes, single and double flanges, and flangeless ones are all used. The performance is very stable.
Most watches with membrane boxes are EJA watches, which are durable. If you don’t have a diaphragm, use a Rosemount watch.
We use a lot of Celsus, ordinary pressure tubes, and the effect is okay.