Answer / gmpatel

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Answer / rajarathinam

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In 2 wire transmitter 1 wire is used for power and other is used for signal( 4-20)ma In 4 wire transmitter 2 wires are used for power and 2 wires are used for signal (4-20)ma . but my question is "what is the criteria or parameters we have to consider while selecting these transmitters for eg( distance, safety zones etc.

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what are the steps to follow force a particular input or out put from ics triplex esd system?

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what is the difference between SMART and tipical transmeter ?

3 Answers   Sirte Oil Company,

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what do you mean by smart instruments?explain with example

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If a flow transmitter (magnetic type FT) that can measure flow and temperature, then why in some industries people use flow transmitter and temperature transmitter in the same line 1 after another? Even after 1 single flow FT is capable of measuring flow as well as temperature.

1 Answers   Process Control Technologies,

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What is the cascade control system and where is use in power plant give the detail with block diagram

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We are used CENTUM CS3000 of YOKOGAWA. please tell me how to simulate wihtout FCS and vnet.

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what does a positioner in control valve ?

11 Answers  

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Is that Speed Probe and Vibration Probe sensors are same,if yes what is the diff b/w them?

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Please why do we use 4-20ma in instrumentation engineering

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Name and describe at least 4 status indicators, typically found on a PLC

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we re giviang 24v supply to transmitter and we getting output from tx?now my question is wht we call this complete proces?

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