FIELD: physics; measurement.
SUBSTANCE: present invention relates to field devices, as well as to interfaces for interfacing a field device and a processing installation. A field device is connected to a process installation using at least one interface element for interfacing with the process installation. The interface element can be a flange of the field device, a collector or a flange of the process installation. The interface element is fitted with a temperature sensor and apparatus for receiving a heat source. In one version of the invention the heat source is one or more electric heaters. In the other version the heat source is a line for heat-transfer fluid medium, passing through the interface element. A controller is connected to the temperature sensor and can regulate heat applied to the interface element based on the temperature of the latter, measured using the temperature sensor.
EFFECT: increased accuracy and reliability of measuring process parametres.
24 cl, 8 dwg
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