Answer / sivarama prasad.kokola

The signal isolator is used to provide galvanic isolation from one signal (input) to another (output) and usually combines the converter function. The isolator input, output and power supply are electrically isolated from each other making these units ideal for solving signal incompatibility and earth loop problems during process control system commissioning. This communication and broadcasting equipment come in three versions such as input signal powered, output loop powered and externally powere

In control valve proximity inductive sensor is taken as digital feedback for full open and full close.Normally its volts 24v when the sensor acts the feed back voltage 14v so that our relay not indicating in plc panel . kindly give the solution.

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Differentiate between ultrasonic flowmeter and radar type flow meter

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