Looking for recommendations for pressure transmitters and multi-channel signal acquisition devices
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To design a closed-loop test system for a pump, a pressure transmitter is required to measure the pressure at the inlet and outlet; in addition, about twenty measurement points need to be installed to detect pressure fluctuations. Are there any suitable transmitters you can recommend? Which multi-channel recorder is good for receiving these signals?
Choose a pressure transmitter based on your own requirements for accuracy and budget; international brands are all good choices. Since you need to record and analyze the data collected, you’ll need some kind of curve representation, so it’s better to use a PLC along with a host computer for configuration.
It needs to be connected to a computer. I don’t understand PLCs – does it involve buying hardware, programming it oneself, and then sending the calculation results directly to a computer?
If by computer you mean the ones we use in everyday life, then they are only capable of processing data. As for where this data comes from, it needs to be collected through configuration using PLCs and higher-level systems, after which it can be exported in formats such as Excel spreadsheets or databases in SQL format. If you need to set up a PLC, it’s better to find a manufacturer specializing in control systems and have them handle it entirely. As for whether there is such a device that can replace the above functions, that’s beyond my knowledge.
Hello, we can handle voltage transformers. Xiao Wang: 13637019850
This post was last edited by 1111111 on 2018-9-28 at 16:20. The small step-down transformers used in my village and factory are not recommended; they’re a bit problematic to use. Whether it’s good or not isn’t up to me to decide; let’s use a provincial-level calibration certificate, with the official seal of the **“Shaanxi Provincial Quality and Technical Supervision Bureau – Authorized Calibration Seal”” – that will do. Those who are interested should take a look at page three of the certification document, examine the actual measurement data and test results. If you do the calculations, you’ll see that for my small factory in Xiao Cun, the accuracy level of 0.1 grade corresponds to an objective accuracy of around 0.0 several
To measure pulsating pressure? Come to me! I know everything and am skilled in everything. Whoever turns to me will handle things smoothly, without taking detours. Whoever seeks my help will accomplish tasks perfectly while spending less money. Lying to you is like being a dog :lol
I saw others do it by going from the measurement point to a box with many interfaces, and a computer is located next to it; that box is probably what you mean by PLC, right?
This post was last edited by myface on 2018-9-28 at 16:40. It shouldn’t be that; I did some searching, and I think what you’re referring to is something similar to this:
It’s very similar to the first one. I just want to ask if there are any brands with reliable quality. It would be even better if there were a manufacturer that sells both transmitters and data collectors
Pressure transmitters are usually produced by traditional instrument manufacturers, while data collectors can be built using PLCs or microcontrollers; the ones I found were all from domestic manufacturers. I assume that major foreign manufacturers of analytical instruments also produce such devices – maybe someone here can recommend some. If you want to make a bulk purchase, it will have to be through a third party, or someone who sells analytical instruments and can help with the purchase as well; there will definitely be an extra cost due to the additional step involved. It’s better to buy it directly if possible.