What is pipe schedule? What are all effects its having in the valve? how do we take care of pipe sch in case if the customer dint specify in the data sheet. What we need assume and in what basis?
3 6527What is difference between flame retardant & flame resistance cable? Among which type of cable is used for ESD & Fire and Gas system application?
1 7803Related to control system, What is difference between 4-20 mA active & 4-20 mA pasive signal.
1 6034While preparing the graphic diagrams trend display, 3 types of trends are prepared by Yokogawa system vender. These are for process variable, manipulated variable & set point variable. Why these 3 trends are required? Explain the purpose of these 3 trends.
1 3241What is difference between “Fault Tolerant” & “Fault avoidance” PLC? Application where these system s are used?
3441Why do we need to install hook-up line differential pressure type level transmitter when the differential pressure type level transmitter with capillary are available?
2 8667How can we say that accuracy of measurement increases by using 3 or 4 wire RTD? because for example: If resistance of RTD element is say r ohms and Resistance of the cable from transmitter to RTD is R ohms And if 4 wire RTD is used, ____._____________________ R ohms | |_____._____________________ R ohms / \ / r ohms \ \ | |______.__________________ R Ohms | |_______._________________ R ohms Then the actual resistance measured will be: Total = r + R/2 + R/2 = r +R Ohms Note: r+R instead of r ohms. hence error
2 4366Post New Instrumentation Questions
how to calculate range of level transmitter?
in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.
What is the formula of vabration sesore. i mean how to covert mils to volt plz share if any body knows very argent : my mai is merajalam143545@yahoo.com
what is difference between HOT permit and cold permit
We Have Two Field bus Pressure Transmitters of Different Sensor Range (I.E One is of Lower range and Another is of Higher Range).Is same Process Line. My Question is Can i provide Saturation Limit to my field Bus Transmitter as We can provide Saturation current limit to HART Instruments. As During Low Pressure Both Working OK ,But During High Pressure, transmitter with Lower sensor range Goes to Fault mode as Beyond its Sensor Limit it can Measure, So may I provide Saturation point Some where to Suppress This Fault during High Pressure.
Why do we have earthing cable in branch cable and shield in the same cable?
Why mmwc unit is used?
how to calibrate and troubleshooting of leveltroll?
why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.
what is the PC interface and software for connection to ABB logic module “ LM011-CE18RAC “ ( for Programming ) ??
What is the use of GMV in turbine?
Why mixer nd grinder Is example of constant torque load not variable torque load ???
Describe the function of Accumulator into the Pump
I have completed B.E. Instrumentation & control in 2009. i have 3 year industrial job experience in chemical plant.now, I want to join M.E. in external. so, Plese say easiet way and good institute name.
In turbine what does term CDP, NI, NH, HSSOC means.
