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Pressure transmitter maintenance mode in winter

  • November 20,2020.

Differential pressure transmitter is more common in industrial applications of a sensor, differential pressure transmitter by placing a space with a sensitive element (multi-purpose bellows) divided into two Chambers, respectively, introduced to the two compartment pressure, being under the function in the both sides pressure displacement sensor (trend) or displacement, the displacement and two chamber pressure (differential pressure) is proportional to the, converts the displacement can reflect the size of the differential operating standard signal output.It is widely used, mainly in a variety of industrial automation environment, which involves water conservancy and hydropower, intelligent building, railway traffic, production automation, ships, oil Wells, petrochemical, electric power, machine tools, pipelines and many other industries

In winter, when the measured medium is transmitted to the transmitter through the measurement pipeline, freezing, solidification, precipitation and other phenomena often occur when the ambient temperature is too low. Because the ambient temperature is too low, it exceeds the normal operating temperature range of the instrument used, which directly affects the accuracy of the instrument measurement display.For this reason, it is necessary to carry out antifreeze treatment to the instrument and its measuring pipeline, the object of heat insulation mainly includes differential pressure transmitter installed in the instrument insulation box, external buoy type liquid level transmitter or other forms of outdoor installation of liquid level transformer unit, pressure, differential pressure, flow and other instruments of the detection pipeline and measurement pipeline.Avoid this kind of accident through selection or other means.

Differential pressure transmitter maintenance measures

1, installation measures reasonable selection of installation site: dry, no rain and snow dripping place.

2. When the spot inspection measures are available, specially-assigned persons shall conduct technical confirmation and disposal on whether the insulation material is damaged or whether the steam pipeline is blocked every day.

3. The regional instrument maintenance responsible person shall conduct regular inspection according to the scheduled inspection route.During the patrol inspection, check whether the valve of the thermal insulation pipeline is normal, whether the thermal insulation box is normal, whether the drainage device is normal, whether the packaging of the thermal insulation materials is intact, whether the electric heat tracing and power supply components are normal, etc.Carry out key inspection on the instruments of the freezing-prone devices and make patrol inspection records, carry out dry, complete and clean maintenance of the instruments and their insulation and anti-freeze measures, and timely solve the problems of heat insulation and heat tracing on the site.

4. When the alarm measures are available, sound-light alarm devices in the state of steam leakage or power failure can be installed to facilitate the discovery and timely treatment of hidden dangers of insulation and anti-freeze measures

5. Whether the converter has failed.

Related products: pressure transmitter, temperature transmitter

differential pressure transmitter

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