PMD75 High Accuracy Process Control Unit Endress Hauser Pressure Transmitter

The Endress+Hauser PMD75 High Accuracy Process Control Differential Pressure Transmitter is engineered for precision measurement in demanding industrial environments. Designed with advanced sensor technology, it delivers reliable differential, level, and flow measurements across a wide range of process applications. Its robust stainless-steel construction, digital display interface, and compliance with international standards ensure long-term stability, safety, and ease of integration. The PMD75 is ideal for industries such as oil and gas, chemical processing, water treatment, and power generation, where accuracy and reliability are critical to operational efficiency.

Applications

The PMD75 High Accuracy Differential Pressure Transmitter is designed for critical process control tasks across a wide range of industries. Typical applications include:

• Flow Measurement Used with primary elements such as orifice plates, Venturi tubes, or pitot tubes to provide accurate flow calculations in liquids, gases, and steam.
• Level Monitoring Applied in pressurized or sealed tanks to measure liquid levels by detecting hydrostatic pressure differences.
• Filter and Pump Monitoring Tracks pressure drops across filters, membranes, or pumps to optimize maintenance schedules and ensure system efficiency.
• Energy and Utility Systems Supports steam distribution, boiler monitoring, and compressed air networks with high accuracy and long-term stability.
• Oil, Gas, and Petrochemical Processes Ensures reliable measurement under harsh conditions, supporting custody transfer, refining, and chemical production.
• Water and Wastewater Treatment Provides dependable monitoring of filtration systems, clarifiers, and pumping stations.

Frequently Asked Questions (FAQ)

Q1: What is the PMD75 used for?

The PMD75 is a high-accuracy differential pressure transmitter designed for flow, level, and filter monitoring in demanding process industries such as oil & gas, chemical, power, and water treatment.

Q2: What makes the PMD75 different from standard transmitters?

It offers superior accuracy (up to ±0.035%), long-term stability, and robust material options (316L, Alloy C, Monel, Tantalum, Gold-Rhodium), making it suitable for harsh and corrosive environments.

Q3: Can the PMD75 be used for safety-critical applications?

Yes. The PMD75 is SIL2/3 capable, making it suitable for safety instrumented systems (SIS) where reliability and compliance are essential.

Q4: What communication protocols are supported?

The PMD75 supports HART as standard, with options for Profibus PA and Foundation Fieldbus, ensuring seamless integration into modern control systems.

Q5: What industries benefit most from the PMD75?

It is widely applied in oil & gas, petrochemical, chemical processing, power generation, and water/wastewater treatment, where precise and reliable measurement is critical.

Q6: How is the PMD75 installed?

It is typically mounted with process flanges or manifolds, connected to high- and low-pressure process lines. Endress+Hauser provides a range of accessories for easy installation and calibration.

Q7: Does the PMD75 require frequent recalibration?

No. Thanks to its advanced sensor design, the PMD75 offers excellent long-term stability, reducing the need for frequent recalibration and lowering lifecycle costs.

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