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Product name:
Differential pressure transmitter
Product series:

PMD55B

Product brand:
E+H/Endress+Hauser
Product feature:
• Wireless control of the device in the process area with the SmartBlue App without interrupting the process • Reduce on-site accidents and protect equipment when instruments are installed in difficult-to-reach areas • Reduce systematic failures with error-free SIL commissioning and instrument-guided proof testing
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Measuring principle:
The differential pressure transmitter measures by detecting the pressure difference between two pressure points. The device is connected to different measurement points of the process system through two pressure ports: the high-pressure side (HP) and low-pressure side (LP). When gas or liquid media act on both sides, the generated differential pressure (ΔP) causes the internal sensing element, such as a metal diaphragm, to deform mechanically. This deformation is converted into an electrical signal through capacitive sensing or resistive strain gauge technology. The signal is then processed by the signal conditioning circuit, including amplification, linearization compensation, and temperature correction. Finally, the transmitter outputs an industrial standard 4–20 mA analog signal or digital signals such as HART protocol.
Product positioning:
Economical
Using scenario:
PMD55B is one of the members of the new generation Deltabar transmitter family. The transmitter features a rugged and durable design, supporting both local and remote operation. With a mobile device and secure Bluetooth connection, the transmitter can be remotely controlled via the app. PMD55B supports condition-based maintenance, significantly improving service efficiency. The software is also easy to use. Intuitive operation guides help users complete instrument configuration, functional safety tests, and verification tests step by step, minimizing the risk of operational errors.
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Jiangsu Pinyi instrument Co., Ltd.
Shanghai Ruiyingda measurement and control technology Co., Ltd.
We specialize in instruments and process control.
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