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hi everybody. i tried to get some information about the trip unit for the barber valve to overhaul it ( the latch & PR blocks ),but i couldn't. i'll appreciate any recommendations. thanks

hi there i'm a beginner, and i have just heard about the proxies.but i don't know what it means , how it works and what is the advantages using them. i would appreciate any help. thanks

hello all i'm not good at computer,and i want to make a password for some folders. can i do that?! thanks

thank you dpc,jsummer for your replies.i thought there is somebody knowes some valuable links ( i know that i can use google,but i wanted to save time).anyway i did some researches and found some links ,these are some of them: http://ref.web.cern.ch/ref/CERN/CNL/2000/003/scada/...

Hello all i'm working in the instrumentation field, and i want to know also about scada,what it mean and how it work.can anybody please recommend some sites that could benefit me. thanks

thank you ilan for your help, and what about the fluisized bed.what it's exactly mean? thanks

hi everyone.i read that to check or calibrate these devices(temperature measurement devices) ,a temperature path or fluidized bed can be used.is that the only way,and what is fluidized bed. thanks

hi everyone i'm trying to collect information about the 4 parameters ( pressure,temp. level and flow ) how they can be measured and transmitted, but i didn't find any valuable sites.so can anyone recommend any sites that explain these topics.i'll appreciate any help. thanks

thank you for your help.

hi everyone ,i often see these topics in some sites or other forums these topics are : motion control, open control and process control .could anyone please tell me what is the difference ? thanks

hi i'm interesting too in plc ,so any more information.thanks

thanks carf for this information

thank you for this valuable information

thanks carf for posting this useful link

hi i'm working in the instrumentation field, and sometimes i encounter some problems with the calibration of these sensors and the other instruments.i need to know more about these things,so can anyone tell me about any book or site that may benefit me,thanks.

hi everyone, i'm interisting in instrumentation especially in control. i'm trying to collect some information about the methods of control.i'll apreciate any help .thanks