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Industrial production, temperature, pressure, flow, liquid level / level four thermal parameters of the measurement, the liquid level / level is very important, liquid level / level not only with the media, but also with the physical shape. The correct selection, installation and use of the instrument all directly affect the accuracy of the measurement data.
Before the selection of liquid level and material level measuring instruments, in addition to familiar with the main technical performance of the instrument and its use occasions,
It also requires an in-depth understanding of the process requirements. In the selection of measuring instruments, the meter's scale, function, accuracy, economy, operating conditions and suitability for media are mainly considered. Different instruments and sensors are selected for different levels and levels; pressure and differential pressure transmitters are also often used in measuring level.
The role of the transmitter in automatic detection and control systems is to apply various process parameters such as temperature, pressure, flow,
Levels, components, etc. are converted into a unified standard signal for display, recording or control purposes.
Scale selection: The following three aspects should be considered in the selection of liquid level and level measuring instruments:
1. Range, media properties, and requirements for display instruments: The range selection is generally under steady pressure conditions. The upper limit of the instrument scale should be 2/3-1/2 of normal operating pressure.
2. The display instrument has the functions of indicating type, recording type, and alarm contact point. The remote display needs remote transmission to be displayed by remote transmission to other places.
3. According to the requirements, choose the appropriate level transmitter and level meter to meet the requirements.
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