Selection of Pressure (Differential Pressure) Transmitters for Instruments
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Hello everyone! When negotiating the agreement with suppliers for pressure transmitters, the main technical parameters are as follows: 1. Accuracy class 2. Pressure resistance or maximum static pressure capacity 3. Type and material of the sensing element 4. Software functions 5. Flange rating (if any) 6. Applicable range of the filling fluid 7. Accessories. Is there anything else that readers would like to add? !
And also, how much are the noodles per jin?~~~~~~ :lol
1. Communication protocol: HART, FF, or Profibus. 2. Process connection: M20*1.5 or 1/2 NPT (note internal and external threads), or flange; what is the flange rating? 3. What is the medium being measured, and what type of diaphragm should be used: 316L, tantalum, Monel, Hastelloy C, etc.? 4. What is the measurement temperature? If it is a flange type, it is also necessary to consider what kind of filling oil to use. 5. What is the pressure range? Is it gauge pressure or absolute pressure? 6. What material is the casing made of? Aluminum alloy casting or stainless steel? 7. Explosion-proof or intrinsically safe? 8. Instrument accessories: whether it comes with a display and mounting brackets, or a SIL2 certification. 9. If it’s of the flange type, consider the flange material, size, pressure rating, as well as whether a capillary is included and what its length is. That’s all I can think of for now; think more about it yourself
Fill in everything that needs to be filled in; leave those you don’t want to fill in or don’t have unfilled
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