Who has training materials on instrumentation?

http://www.google.cn/search?q=%D2%C7%B1%ED+%BF%CE%BC%FE&sa=%CB%D1%CB%F7&prog=aff&client=pub-0712079178777972&channel=9470486527&domains=bbs.hcbbs.com&hl=zh-CN&source=sdo_sb&sdo_rt=ChBJqKmEAAk6pQp68hggCVJLEg5fX1JMX0RFRkFVTFRfXxoI9ARJmwNWF5IoAQ&sitesearch=bbs.hcbbs.com There are actually many discussions on forums; when it comes to using instruments in manufacturing processes, one must start with the basics!

There is a lot of material and books available on the forum; course materials are far inferior to books. When explaining instruments to technicians, in addition to the basic knowledge, there is one very important thing that must be covered. That is, the instrument selection data provided by the process is very important; many instruments end up being poorly selected, and this poor selection is largely due to inaccurate data provided by the process.

Still, focusing on the characteristics of the process flow, it explains the detection, control, and safety interlocks of the instruments.

Explaining instruments to process engineers is different from explaining them to instrument technicians. They just want to understand how to use it, so there’s no need to explain basic knowledge and principles such as measurement errors or pressure changes in throttling devices – that’s irrelevant to them as they won’t need it. What they need most is an explanation of the reason behind setting each measurement point – why that particular point needs to be measured, and what impact inaccuracies at that point could have on the manufacturing process. Ultimately, it’s still about the manufacturing process; these things are all determined by the process. The composition of each control loop, the object being controlled, and how it is implemented in practice. For example, in a flow control loop, it is determined whether control is achieved through backflow or throttling. What are the consequences if this traffic measurement is inaccurate, and what causes can lead to control issues? There is also interlocking; why are these interlocking points and values set? What harm could it cause to the device if the interlocking does not function? What they need are practical case studies. Once every circuit is understood, one will be able to analyze and solve problems during actual operation, so as not to doubt that there is an issue with the instrument readings when process problems arise. It was a particularly serious incident – eight differential pressure measurement points all showed full scale at the same time. The shift supervisor and the on-duty dispatcher came to ask me whether there was a problem with the transmitters and their readings were inaccurate As a result, the load was too high for an extended period, causing overpressure operation and leading to the shutdown of the equipment; penalties were imposed one after another. . . . . . .

Thank you all for your suggestions. I’ve finished speaking; the result is pretty good, I think.