Answer / rajkumar

PCBs ---solid electronics and occupies lesser space ,
consumes lesser power,low cost spares etc...

Answer / harish bhise

1 occupy max. component in min.area
2 to avoid emi
3 get the refrence point for gnd.

A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?

0 Answers  

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Can any body tell me about SAP MAINTINANCE MODULE. WHAT IS its function and application. And study material Source about it. I shall be very thankful.

0 Answers  

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How r the calculation of process line mpm.

0 Answers   Bhushan Power Steel,

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any questions on motor and energy conversions machines?

0 Answers   ABB,

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Why even multiple power supplu r used in instrumentation system?

1 Answers   Honeywell,

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I want to measure flow by using DP Tx and range is 0 to 1200 Kg/cm2 ?

2 Answers  

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what type problems create in radar level transmeter and what is its solution

2 Answers   Essar,

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What is the role of P(Protional), I(Integral) and D (Derivative) in PID Controller?

9 Answers  

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why we use 4-20 mA for calibration of the instruments.why we cant use 0-20 mA?

5 Answers  

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What is the difference between precision and repeatability of any instrument. Why it is measured always in percentage

2 Answers  

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Dear sir I am MD.zafar eqbal. I have taken this id from allinterwiev .com I have qustion if you dont mind. 1.what is the maximum operating temprature in instrumentation. 2. I want know about viberation i mean wahat types of sensor used in viberation And what types of trabsmitter used.and hiw to control it and wher is used of viberation transmitter and finally how to control it and what types of fault come. Sorry for disturbing you. I know you have no reason for help me. Because you dont know about me.but i request you please help me these question are very usefull for my feauture.plz sir Thanking you. Sent from Yahoo! Mail on Android

4 Answers  

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You are looking at the RS-485-side of an RS-232/RS-485 converter and the power supply voltage for the converter is +5V. Under idle conditions (no transmission), and assuming you have enabled the RS-485 output: what would you expect at: (a) Output A measured against output B (b) Output A measured against ground (c) Output B measured against ground

1 Answers   EIT,

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