I/P Converter

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For operating a control valve the analog electric signal has to convert into proportional signal. This is accomplished by using I/P converter.

An I/P converter converts the standard 4-20 mA signal to corresponding 0.2 to 1.0 kg/cm2 pneumatic signal.

The device has 3 ports- one electrical and two pneumatic ports. The input to the I/P is electrical port for providing 4-20mA input and the output of the I/P is pneumatic port for output of 0.2 to 1.0 kg/cm2. The third port for the supply of 20 psi or 1.4 kg/cm2

The I/P works on the principle of electromagnetic induction and flapper nozzle mechanism as shown below.

ip

In this type the flapper moves in proportional to the electronic current signal. This movement of flapper makes a variable distance between flapper and nozzle, which creates a variable back pressure to the relay unit.

Parameter setting of  E+H LT

https://atomic-temporary-28241129.wpcomstaging.com/2018/04/29/parameter-setting-of-eh-fmp51-gwr-lt/

Siemens LT parameter setting

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Parameter setting of KTek LT

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https://kishorekaruppaswamy.wordpress.com/2018/02/14/offset-calculation-for-a-guided-wave-radar-level-transmitter/

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https://kishorekaruppaswamy.wordpress.com/2018/02/13/temperature-transmitter-classification-tree/

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Pressure transmitter calibration

 

https://kishorekaruppaswamy.wordpress.com/2017/12/19/pressure-transmitter-calibration/

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India

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Safety Integrity Level

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Instrumentation Working Principle

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My profile

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RTD conversion chart

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Ingress Protection

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To know more about Instrumentation and Control,

 

or

 

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