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  1. D

    Cascade control loop in Honeywell EPKS

    PID designates the control action being taken. Suggest you read the manual for your controller function.
  2. D

    Cascade control loop in Honeywell EPKS

    why are you using PID for your water flow control valve?
  3. D

    Solenoid Operated Valve

    You'll have to read through the manufacturers detailed description, before you asume how you might think it work.
  4. D

    Sealing issues of Instrument Cables in Hazardous environment.

    Your battery room must be continually evacuated (fresh air) with slight negative pressure, and H2 gas detectors.
  5. D

    Hysteresis - Calculation method

    If you are dealing with process control, as you summary of valve errors suggest you might be, it is far more complicated.
  6. D

    Hysteresis - Calculation method

    If it is only an example, there are countless references to address accurracy and the various subcategories involved. You'll be better off sorting out what works in your case. It won't be simple as there are eighteen categories for static error, and that's just the beginning. Good luck,
  7. D

    Hysteresis - Calculation method

    Fundamental to establishing "hysterisis" you need to clarify the deadband error in your measurments
  8. D

    Hysteresis - Calculation method

    You need to explain how the individual tests are performed, and what standard is used to guage calibration error, before attempting to address hysteresis.
  9. D

    Why are my Telegraph Transmitters not grounding correctly?

    As with all sensitive signals, local grounding leads to the problems you have describe. Contact the supplier of the alarm system, they can explain it in detail. The redundancy you describe is not redundancy in a real sense, as that requires independent installations.
  10. D

    Why are my Telegraph Transmitters not grounding correctly?

    Use two wire link with your transmitter, do not ground your wiring separately.
  11. D

    High Synthetic Oil Supply Pressure

    You may need lube oil preheat when its cold.
  12. D

    Nitrogen pressure switch

    Better off shop testing with dry gas, that way no worries If have an existing pressure transmitter on the header, you may be able to do checks without a hand pump.
  13. D

    Curious about why the Discharge MOV opens 1 minute after starting the BFP

    It is not that simple, you'll need to look at the p&id's and the controls associated with the two steam drums. You may have a flow meter or two in the system as well.
  14. D

    Setting up a VFD to unknown motor

    Don't forget it appears to be a single phase motor not designed for VFD, only 60 Hz constant speed.
  15. D

    Setting up a VFD to unknown motor

    One test is for 110V Hz power, under load. The second test, you have already performed. The bottom line, per an internet search is that 3-phase motors motors are required, good luck finding your new motor, with specs
  16. D

    Setting up a VFD to unknown motor

    you'll need complete specs for your motor, and whether it is suited to VFD drive.
  17. D

    How to achieve Parallel Operation of More than 1 Diesel Generators (Common Gen Bus ) and Utility Transformer

    You are showing synchronization between the diesel-gen sets. How do you plan to coordinate voltage, frequency, power balance, and phase with the independent power source?
  18. D

    Check Valve Impact on Motor Blower Current

    the power will be proportional to the mass flow for low pressure blowers
  19. D

    Explication

    Utilisez Google Translate pour les différents termes de votre dessin, et cela vous aidera English translation: Use Google Translate for the different terms of your drawing, and this will help you
  20. D

    Check Valve Impact on Motor Blower Current

    why is your check valve not fully opened?
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