The differential pressure transmitter is used to prevent the medium in the pipeline from directly entering the transmitter. The pressure-sensitive diaphragm and the transmitter are connected through a liquid-filled capillary tube. It is used to measure the liquid level, flow rate and pressure of liquid, gas or steam, and convert it into a 4~20mA DC signal for output.

Differential pressure transmitters are suitable for the following measurement and control situations:
High temperature viscous media
Easy to crystallize medium
Sedimentation media containing solid particles or suspended matter
Strongly corrosive or highly toxic media
It can eliminate leakage of pressure-conducting tubes and pollute the surrounding environment; when using isolation fluid, it can avoid the tedious work of frequently replenishing isolation fluid due to unstable measurement signals.
Continuous precise measurement of interface and density
The remote transmission device can avoid the mixing of different instantaneous media, so that the measurement results truly reflect the actual situation of process changes.
Where a high degree of hygiene is required
For example, in the production of food, beverage, pharmaceutical and other industries, transmitters in contact with media must not only comply with hygienic standards, but also be easy to clean to prevent cross-contamination of different media.

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