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I mean if i am calibrating a transmitter by a certified calibrator, when i can accept this transmitter and when it is not accepted and i will need to replace the transmitter sensor module

Dear Gents I need to know if there is any standard for accepted calibration tolerance for PT, Thermocouples,RTD,.... Best Regards

hello Gents. i had a what i think very simple question. i am designing a heater, the heater will finally have a plug like any apparatous, as you know the plug may have two position so, the 220 volt will be swapped to my heater,i.e i will get 220V instead of the neutral. what shall i do to...

hello engineers I have a workshop feeded from diesel generator and i will order a distribution panel and i have a question, shall i use double pole circuit breaker for the single phase loads?

hi everybody what is the difference between switchgear and switchyard?

use an .m file inside this file write x=2; so now x=2 when you use x inside the m file it is autmatically has the same value so if you write y=2x so y=4 is displayed so i think the answer of your question is to use m file not the command window of matlab because in command window every time you...

hello everyone i am working at a power station , and we have some jogging motorized valves(i.e motor is running as the command is available) our DCS package is FOXBORO backage, my question is how can i have this type of output and how this application is implementeed in other systems, our...

hello john thanks for your concern we use FBM of foxboro field bus modules , we have two redundant bus A&B, some times we have bus access error on both busses which lead to loose some data

hello guys, I really face a problem in Fieldbus of Foxboro DCS, failure of different busses happen. any recommendation?

hello engineers, 1- Do anyone know a good website which describe the standards of grounding, bonding& shielding? 2- is there any difference between grounding and earthing? 3- is shielding must be separate from earth?

hello engineers is there difference between grounding and earthing?

hello ronied i faced this problem before all you want to do is to initialize your controller and readjust the parameters again sincerly

use system1 software it is simple and very relaiable . http://www.bently.com

hello engineers, can anyone help me to find a book or any document to give me the laws of flow of liguids and gasses and the bassic type of pumps ?

hello engineers, can anyone help me to have principal idea about DCS system, i hear always about Modbus, Profibus, Fieldbus, Device net i want to know what is the difference.

it is absolutely correct in your VFD you can activate the reverse key or you can have a switch to change direction for you

Dear Kingjoey please try this link http://drives.danfoss.com/SW/DDdrivesUniversity/en/index.htm?click=c_{6FAE27E6-D1FE-11D4-94FC-00508B8B37A1} and then press on (Facts worth Knowing about frequency converters) this pdf file will give u a complete survey and detailed defferences between...

Hi baldwon, i think what u really need is a capactor bank to compensate the reactive power, really i donot know how to size a capacitor bank for a 60HP motor, but i think it is easy. voltage is strongly related to reactive power, increasing the load(a cylinder start to waork) will need more...

does anyone know what this word (IT mains )means?

can anyone help me in method of synchronization using microprocessors?