if i want to make a zero trim for mass flow meter the pipe line should be empty or i need to make it full? i really need the answer pls help me
Answers were Sorted based on User's Feedback
Answer / satishkumar
If you want to make a zero trim for MASS FLOW METER, the
pipe line filled with liquid or empty pipe line is not a
problem. main important thing is the flow rate must be zero
when ZERO TRIMING of the MASS FLOW METER.
Is This Answer Correct ? | 8 Yes | 0 No |
what should be the distance of vibration sensor & to the point where vibration to be measured Ex turbine axial displacement
I have seen the Temperature element (T/C & RTD) installed in process line on 45 degree position, Why? What it mean? How many types of tapping position for temperature elements?
how to change 4 wire rtd transmitter into a 3 wire rtd transmitter? as our transmitter is working for 4 wire rtd, what should do for working on 3 wire rtd transmitter
one rtd sensor which is connected at middle of distillation column where actual temp. is 100deg but when we tight this sensor at thermowell end it goes down to 90 deg & when remove from the thermowell(but sensor end dipped in well) showing actual reading, what is reason?
How 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
where cascade loop use ?
what is the procedure to callibrate temp controller ,pressure controller,etc. suppose a temp controller showing error 1.5 degree centigrate how can i minimize it.
0 Answers Sabic, Saudi Aramco Shell Refinery Company SASREF,
If any control valve create hunting problem, what is the possible reason and solution?
Draw a wheatstone bridge circuit showing supply, meter and 3 wire RTD connection
Why we are using sqare root in flow?
What for barriers are used in DCS & PLC systems?
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