Ways to ensure stable operation ELECTRONIC SYSTEMS FIELD SENSORS IN LOW TEMPERATURE ENVIRONMENT AND FIELD SENSOR FOR CARRYING OUT THE METHOD

摘要

1. Field sensor for measuring temperature or level, or pressure, or liquid or gas flow at low ambient temperatures, comprising an airtight housing in which an electronic measuring unit, the temperature sensing element, an electric heating element, characterized in that the temperature sensing element is associated with control means, which is mounted on an electronic measuring unit or out of it and restarting device is provided, wherein the temperature sensing element through the normally closed e ktronny key is associated with an electric heating element that interacts with the electronic measuring bloka.2 power system. A method for providing stable operation of the electronic measuring unit of field sensors for measuring temperature, or level, or pressure, or flow rate or gas at a low temperature environment comprising temperature control within the transmitter housing, depending on the ambient temperature, characterized in that when power to an electronic measurement unit field sensor carried off power to the electrical heating element through a normally closed switch, continuously measurable yayut temperature inside the sensor body, periodically reset the control means until it reaches the desired temperature, after which the electric heating element is switched off without ending the temperature measurement, for reconnecting the electric heating element when the temperature inside the sensor housing.