Company Introduction
Xi’an Yunyi Instrument Co., Ltd. is a national high-tech enterprise, specializing in the R&D, production and sales of pressure meter,level meter, flow , temperature instrument and automatic control equipment. Established in 2010, Yunyi has the resource advantages of Xi’an instrument industry, constantly introduces advanced production equipment and testing instruments like fully automatic GE pressure controller. Over ten years of steady development, Yunyi now has a strong independent R&D and production team,which developed a tuning fork density meter that can replace imported brands, with sales up to 20 units per time and received unanimous praise from customers. Meanwhile ,80% of our staff with more than 5 years Professional and effective international business experience , offer good communication and better service.

Product Description
Single Flange Level Gauge is a new type of transmitter developed by Xi'an Yunyi using introduced advanced foreign technology and equipment.Key raw materials, components, and parts are sourced from imports. The entire unit undergoes strict assembly and testing. This product features advanced design principles, a complete range of models and specifications, and simple installation and use. As the appearance of this model fully incorporates currently popular domestic design elements, it offers users a fresh and novel feeling. Simultaneously, it can directly replace traditional series products in installation, offering strong versatility and replacement capability.
The measurement principle involves a measuring diaphragm and an electrode on each of the two insulating plates, forming a capacitor. When the pressures on the two sides are inconsistent, it causes the measuring diaphragm to displace. The displacement is proportional to the pressure difference, thus making the capacitances on the two sides unequal. Through oscillation and demodulation stages, this is converted into a signal proportional to the pressure.
Product Features
· Compact design (2.4kg), all-stainless steel flange, easy to install.
· Process connection compatible with other products for optimal measurement.
· Sensor using HC alloy protective sheath (patented technology), achieving excellent cold and hot stability.
· Intelligent transmitter utilizing a 16-bit computer.
· Standard 4–20 mA output, with HART protocol-based digital signal for remote control.
· Supports upgrade to fieldbus and field control-based technologies.

Technical Specifications· Digital Accuracy: ±0.05% FS
· Analog Accuracy: ±0.75% FS ±0.1% FS
· Total Performance: ±0.25% FS
· Turndown Ratio: 100:1
· Measurement Rate: 0.2s
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Robust Differential Pressure Transmitter Designed for Continuous Monitoring of Pressure Variations in Industrial Processes Images
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