Flanged diaphragm pressure transmitter

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I. Product Overview:

The key raw materials, components and components of ZW3051GP series flanged diaphragm pressure transmitter are imported or joint venture. After rigorous assembly and testing, the whole machine has advanced design principle, complete varieties and specifications, and easy installation and use. Because the appearance fully integrates the structural advantages of two kinds of transmitters (Rosemount 3051 and Yokogawa EJA), which are the most popular and widely used in China at present, it makes users have a fresh sense. At the same time, it can be directly replaced with traditional series products in installation, and has strong versatility and substitution ability. In order to adapt to the continuous improvement and development of domestic automation level, besides the compact and exquisite design, the intelligent function of HART fieldbus protocol is also introduced.

II. Working Principle:

The principle of ZW3051GP series flanged diaphragm pressure transmitter is that a capacitor is composed of the measuring diaphragm and the electrodes on both sides of the insulating diaphragm. When the pressure on both sides is inconsistent, the displacement of the diaphragm is proportional to the pressure difference, so the capacitance on both sides is different. Through oscillation and demodulation, the diaphragm is converted into a signal proportional to the pressure, and then transformed into a standard electrical signal through temperature compensation and linear correction.

3. Application occasions:

The main structure of ZW3051GP series flanged diaphragm pressure transmitter is the same as that of pressure transmitter. In order to meet different installation requirements, this series of transmitter has many kinds of remote transmission devices for users to choose. This product is widely used in petroleum, chemical, power, food, paper, municipal engineering and other industries.

1. Viscous media at high temperature;

2. Easy to crystallize medium;

3. Precipitable media with solid particles or suspended solids;

4. Strong corrosive or highly toxic media;

It can eliminate the leakage of the guide pipe and pollute the surrounding environment, and avoid the tedious work of supplementing the isolation fluid frequently because of the instability of the measurement signal when using the isolation fluid.

5. Continuous and accurate measurement of interface and density;

The remote transmission device can avoid the mixing of different instantaneous media, so that the measured results can truly reflect the actual situation of process changes.

6. occasions with high requirements for hygiene and cleanliness;

For example, in the production of food, beverage and medicine industry, it is not only required that the contact media parts of transmitters meet the hygienic standards, but also should be easy to rinse to prevent cross-contamination of different batches of media.

Fourth, main characteristics:

1. The direction of the new indicator, intuitive reading, eye-catching and observation indicator can be changed according to the user's needs.

2. Simple structure: no movable or elastic components, so it has high reliability and little maintenance.

3. Easy to install: The built-in structure shows this characteristic, and no special tools are needed.

4. Easy to adjust: Zero and range potentiometers can move zero or change range arbitrarily within the effective range of liquid level detection, and the two adjustments do not affect each other.

5. It is widely used in liquid level measurement of medium such as high temperature, high pressure and strong corrosion.

6. The measurement range is large and is not limited by the height of the storage tank.

7. The indicating mechanism is completely isolated from the measured medium, with good sealing, high reliability and safe operation.

8. It has intrinsically safe explosion-proof and isolation explosion-proof capability and can be used in various dangerous places.

9. The liquid level of pasty media can be measured by anti-blocking design.

10. Fine and unique zero point, full range, non-linear compensation to ensure the accuracy of the instrument within the use conditions, long-term stability is good.