The application of pressure transmitter is quite extensive, and the brands and types are also diverse. Take the mystery of pressure transmitters to the next level.
From the outside, the pressure transmitter mainly consists of the Hersmann plug, the parallel gasket and the housing of the pressure transmitter.
Hersmann Plug:
The plugs of the pressure transmitters are mainly Hirschmann plugs. The Hersmann plugs are very good dust and splash resistant and have a high level of reliability. The Hirschmann plug for the pressure transmitter is easy to wire, with four terminal blocks for most two-, three- or four-wire outputs. Its unique wiring also ensures the stability of the pressure transmitter, the line is not easy to fall off and there is no interference between the lines.
Parallel gaskets:
The parallel gasket design of the pressure transmitter improves the protective performance of the product, leaving no liquids, etc. The concave design of the old-fashioned gasket has poor protection and is easy to retain liquid and other media.
Housing:
The housing of the pressure transmitter is made of national standard 304 stainless steel or 316L stainless steel. It has strong corrosion resistance and good housing performance.
The internal structure of the pressure transmitter mainly refers to the various components inside the housing, which is also the main factor for the performance of the pressure transmitter. It mainly includes: fixed copper sheet, integrated chip, isolation ring, diffusion silicon core, damping, etc.
Fixed copper sheet:
In the pressure transmitter products with more mature technology and better quality, fixed copper sheets will be added inside. Fixing copper sheets can improve insulation, seismic resistance and grounding stability. Some inexpensive pressure transmitters do not add fixed copper sheets to save costs.
Integrated Chips:
The quality of the integrated chip can ensure the anti-interference and stability of the pressure transmitter. The integrated chips of good pressure transmitters are all international advanced integrated chips, and the circuit chips assembled in parts have poor anti-interference and poor stability.
Isolation Ring:
The addition of isolation rings to the pressure transmitter can improve the insulation of the product and play a good role in protecting the pressure transmitter.
Diffusion Silicon Core:
The advanced pressure transmitter adopts the imported international advanced silicon wafer diffusion silicon core, which is the guarantee of high precision and long-term stability of the pressure transmitter. The price difference of pressure transmitters is mainly reflected in this. The poor long-term stability of the inferior core does not guarantee the measurement accuracy of the pressure transmitter.
Damping:
Damping is added to the pressure transmitter in order to improve its impact resistance, better protect other structures inside the pressure transmitter, and avoid impact damage to the pressure transmitter caused by instantaneous overpressure. It plays a very good protective role.
When we choose a pressure transmitter, we need to analyze and understand the product from all aspects, and choose a product with good quality and perfect product structure in order to be able to use it and be more economical and practical.
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