25 years of pressure transmitters

25 years of pressure transmitters


		REFRIGERATION AND AIR-CONDITIONING CONTROLS By Arne H. Blom, Product Manager

Danfoss developed the first pressure transmitters more than 25 years ago, but it was not until the 1990s that the refrigeration industry began seriously considering the use of these electronic units. Customer demands for accurate regulation, the need to reduce energy consumption and legislation requiring the registration of temperature throughout the entire refrigeration chain were the tasks that could not be performed without pressure transmitters. Electronic pressure transmitters in a refrigeration plant are able to convert any pressure to an electrical signal. This signal – a voltage, a current, or in digital form – can then be sent to a control unit situated either in the immediate vicinity of the refrigeration plant or in a central station at a service company perhaps many hundreds of kilometres away.