Not to worry they will never be as smart as a instrument tech. Look what you can do with a cellphone today. All justĬomputer software and programming like anything else in Positioners that can accurately detect the erosion of it'sĬontrol valve's plug and seat and send a alarm signal to theĬCR that a overhaul on the valve is needed. Where we calibrate the transmitters with a HART communicatorĪnd the transmitter itself is actually a small computer thatĬan even detect a error on itself or tell you if theĬalibration you are trying to do is invalid. Since then we have moved on to the smart instrumentation era Standard signal, even today, is still the 20 to 100Kpa signal. The new electronic world standard signal then started as theĤ to 20 mA signal, but keep in mind that the pneumatic world These were called the electronic 4 to 20 mA Of transmitters had to be pumped up with a small hand pumpĪs normal, but all you then had to do was make smallĪdjustments with a small screwdriver to a zero and span pot Various electronic instrumentation and transmitters on the Things started to move along very fast and we started to see Very simple electronic indicators and chart recorder.Īfter the transistor and micro processors were developed Later we moved on to electromechanical instruments and some
Really had to know instrumentation when you worked with
That we had to calibrate our pneumatic pressure transmittersĪnd controllers to give this output of 20 to 100Kpa. Standard instrumentation signal was also a pneumatic one Pneumatic era where all measurement and controls were doneīy pneumatic and some electrical instrumentation. That instrumentation only started to take off during the Instrumentation that was used that long ago. We normally are not to concerned with the type of Marks on it to see what the level was in one of their tanksĪnd various other simple measuring and control devices as well. Believe it or not but measurements of flowĪnd level had been done by the old Egyptians that build the We went through various eras or technology time periods in
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