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what is the formula for changing Range of Transmitter from X mmwc to some Y mmwc with respect to DCS NCMH flow range from x NCMH to y NCMH?
HCL,
1 5639i feel sq. pipe is better than round pipe pls give comment for this. advance thanks for reply
3 5634Why use ball valves on Gas pipelines instead of gate & or globe valves...means basic diffrence or use of these valves..how designers knows this type of valve with rating is required...
2342Can you tell me how we will select RTD and Thermocouples for Temperature applications. I.e How we will choose accurate one for a specefic operation if both having same ranges
3 8630Post New Instrumentation Questions
What are de-saturators?
installation process of orifice,a question asked for confusion creation in interview by BARC 1.if orifice is tightly fitted with pipe ,it will act like venturi 2.if orifice is left hanging in between liquid it will not create the pressure difference exactly,
can u plz send me technical questions asked in SCHNEIDER ELECTRICAL technical paper?
Explain the mechanism behind the turbine meter.
how many types of preheaters are in cement industry & what r they can any body explain?
What is the use of temperature compensation?
A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.
how many types of spped sensors n vibration sensors?their basic principle n connection?
What is the purpose of LO Overhead tank in turbines.
can we replace a slot sensor (inductive type) with limit switch (potenial free contact / no-nc type).
we have level transmitter for h2s04 storage tank capacity 10k ,always there are failure of transmitter due to failure of magnetic floats ,please come up with solutions at the earliest.
Tell me the field calibration procedure step by step with diagram of pressure gauge, pressure switch, pressure transmitter, temperature switch, level switch, flow switch, flow transmitter.
what is dc moter.
on interface level transmitter model(RTG3302-EMERSON) What is threshold valve how can we select correct threshold value T1,T2,T3,T4 When interface water & hydro carbon
What is three element in drum level?
