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All >> Pressure measurement >> Differential pressure Deltabar PMD75
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*Picture for reference only !
Product name:
Differential pressure Deltabar PMD75
Product series:

PMD75

Product brand:
E+H/Endress+Hauser
Product feature:
• Best accuracy, reproducibility, and long-term stability • Highest safety with gas-tight feedthrough, supporting SIL2/3 and certified to IEC 61508 • Easy menu-guided commissioning via local display, 4 to 20 mA with HART, PROFIBUS PA, and FOUNDATION Fieldbus • HistoROM data management concept for fast and easy commissioning, maintenance, and diagnostics • Cost savings with modular design for easy replacement of the sensor, display, or electronics • Overload-resistant up to 420 bar / 42 MPa / 6,300 psi, with function monitoring • Seamless and independent system integration via HART, PROFIBUS PA, and FOUNDATION Fieldbus
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Measuring principle:
The measurement principle of a differential pressure transmitter is based on measuring the pressure difference between two process points. The transmitter is connected to different points in the process through two pressure ports: the high-pressure side (HP) and low-pressure side (LP). When gas or liquid acts on the two sides, the resulting differential pressure (ΔP) causes mechanical deformation of the internal sensing element, such as a metal diaphragm. This deformation is converted into an electrical signal using capacitive or resistive strain-gauge technology. The signal is then processed by signal-conditioning circuitry for amplification, linearization, temperature compensation, and other corrections, ultimately producing an industry-standard 4–20 mA analog output or a digital signal such as HART.
Product positioning:
Foundamental
Using scenario:
The Deltabar PMD75 Differential Pressure Transmitter features a piezoresistive sensor with a welded metal diaphragm, designed for continuous measurement of liquids, steam, and gases in process industries. Three-button operation enables simple and reliable commissioning and operation. The integrated HistoROM data module facilitates convenient management of process and device parameters. The transmitter complies with IEC 61508 and meets SIL 2/3 functional safety requirements.
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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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