Answer Posted / ganapathi s.b

First check DO out put came or not. if signal not come check Do module, if signal came then check sov coil Resistance value
either open or short.this is main problem of not working in Auto mode.

how to commission furnace ( water heater)

2057

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i want formula for flow control.am doing project in flow control using orifice . i know value of the flow level(Q) . upstream(p1) pressure, orifice diameter(Do) , pipe diameter(Di) and oil viscosity(Vi) how can i calculate downstream pressure

1929

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Can I calibrate the Electromagnetic Flow Meter on line and How.

1976

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i have used level transmitter in starch cooking preparation tank. tank total height 2mtr.sometime LT display shows some error value when tank is fully empty and diaphragm side i already checked okay no problem in diaphragm area. field cable checked 24volt and mA shows correct value while tank empty mA is 4mA. 4mA i needed that 0% but display showing 10% or 15% percentage values are varying continously please give any good solution for me.....

1477

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what is basic difference between motion balance and force balance in pneumatic instrument?

9678

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please send data bank of quetions answers on analytical instrumentation.

1870

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how to calculate signal cable sizing? and multipair cable sizing??explain in brief?

2360

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i want to find out iffco get test paper

13144

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what is the electrical operation procedure for switching on 27.6MVA electric furnace.

2038

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how to relay switch sense the fault?

2616

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define feed forward control loop with example and drawing?

3216

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How do you identify an orifice in the pipeline?

1267

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I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann

2267

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wich is coming the first HAZOP OR SIL

2770

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why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.

2395

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