Pneumatic To Electrical Converter Working

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Pneumatic to electrical converter working. The flapper of the flapper nozzle instrument is connected to pivot so that it can move up and down and a magnetic material was attached to other end of flapper and it is kept near the electromagnet. Eprs require a power supply and a digital or analog set point signal and employ a push valve and a vent valve to regulate output pressure. An example of an i p transducer manufactured by foxboro is the model e69 shown here.

Electronic pressure regulators epr are effectively modern electro pneumatic transducers and are referred to as electronic pressure controllers electronic pressure valves or electronic pressure transducers. The operating principle of the i p transducer is shown below. Function the adjusting screw is used to vary the initial tension of the spring which presses the metal bellows against the stop face.

The flapper moves towards the electromagnet and the nozzle gets closed to some extent. Typically a 4 20ma input is converted into a 3 15pisg output. The purpose of any i p transducer is to convert an electrical signal into a corresponding pneumatic signal in most cases this means an input of 4 20 ma dc and an output of 3 15 psi but alternative ranges do exist.

Its purpose is to translate the analog output from a control system into a precise repeatable pressure value to control pneumatic actuators operators pneumatic valves dampers vanes etc. In the case of the electro pneumatic converter a flapper nozzle system senses this rotation. The input is 4 to 20ma signal and the equivalent output is 3 to 15 psi pressure.

The unit is mounted on the profile plate using a snap lock system with a blue lever mounting variant a. Working of the electro pneumatic converter. The i p converter uses an electromagnetic force balance principle to change electrical signals into pneumatic signals.

If the current is more then the power of magnet will get increased. At kele we make it easy to find the right transducers product. The instrument s pneumatic section consists of a feedback bellow and a bias spring applying a force to a lever pivoting at one end through a flexure and carrying a nozzle at the free end.