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Endress Hauser Cerabar Pressure Transmitter PMP50

Product Overview

The Cerabar PMP50 is a pressure transmitter from Endress+Hauser, designed with a fully welded metal membrane for highly accurate measurement of liquids and gases. It is optimized for standard applications across various industries, providing intuitive operation and robust performance.

Key Features and Benefits

  • High Accuracy: Offers reference accuracy up to ±0.055% (Platinum version) for precise and reliable measurements.

  • Versatile Measuring Range: Capable of measuring pressure up to 400 bar (6000 psi). The measuring cell covers a range from 1 bar to 400 bar with a maximum turndown of 20:1.

  • Wide Temperature Capability: Handles process temperatures from -40°C to +125°C (-40°F to +257°F) in its standard configuration. With a diaphragm seal, this range extends from -70°C to +400°C (-94°F to +752°F).

  • User-Friendly Commissioning: Features a software wizard that enables fast and straightforward setup. On-device operation is supported by intuitive zero/span buttons and an optional color display accessible via magnetic buttons.

  • Robust Safety and Compliance: Developed in accordance with IEC 61508 for functional safety (SIL), offering flexible write protection via hardware or software. It holds numerous international approvals including ATEX, FM, and IECEx for hazardous area use.

  • Durable Construction: The process membrane is available in materials like 316L, AlloyC, and Gold to ensure compatibility with various media. The housing is offered in aluminum or 316L stainless steel for durability in harsh environments.

Technical Specifications (at a Glance)

Specification Detail
Measuring Principle Absolute and Gauge Pressure
Supply Voltage Non-Ex/Ex d/Ex e: 10.5…35 VDC; Ex i: 10.5…30 VDC
Reference Accuracy Standard: up to 0.065 %; Platinum: up to 0.055 %
Long-term Stability 0.05 % of URL/year
Smallest Calibratable Span 20 mbar (0.29 psi)
Process Connections Thread: G1/2, NPT1/2; Flange: DN25…DN80, NPS 1″…3″
Communication 4…20 mA HART
Fill Fluid Silicone oil, high-temperature oil, inert oil

The Cerabar PMP50 is a robust, versatile, and reliable solution for standard pressure measurement applications, combining high performance with ease of use and a strong focus on safety and operational security.

Endress Hauser Cerabar Pressure Transmitter PMP50

 

The Cerabar PMP50 is a pressure transmitter from Endress+Hauser, engineered with a fully welded metal membrane for highly accurate measurement of liquids and gases. It is specifically optimized for standard applications across industries such as chemical and process engineering, offering a balance of robust performance, intuitive operation, and operational safety.

At its core, the PMP50 utilizes a piezoresistive sensor that measures absolute and gauge pressure. The measuring cell covers a range from 1 bar to 400 bar, with a maximum turndown of 20:1, providing flexibility across various pressure measurement tasks. For demanding applications, the device can be equipped with diaphragm seals, enabling process temperature capability up to 400°C (752°F) and compatibility with challenging media.

The transmitter is designed for ease of use and commissioning. A built-in software wizard guides users through the setup process, significantly reducing installation time and the potential for errors. On-device operation is further simplified by intuitive zero/span buttons and an optional color display accessible via magnetic buttons, allowing for local adjustments without opening the housing. Flexible write protection, available via hardware or software, helps prevent unauthorized changes to device configuration.

With a reference accuracy of up to ±0.055% (Platinum version), the PMP50 delivers reliable and repeatable measurements. Its long-term stability is specified at 0.05% of URL per year, ensuring consistent performance over extended periods of operation. The device is developed in accordance with IEC 61508 standards for functional safety (SIL) and holds numerous international approvals including ATEX, FM, and IECEx for hazardous area use.

The PMP50’s construction emphasizes durability and process compatibility. The process membrane is available in 316L, AlloyC, and Gold materials to suit a wide variety of media, while the housing is offered in aluminum or 316L stainless steel for resilience in harsh environments. Communication is handled via a standard 4…20 mA HART protocol, enabling seamless integration with existing control systems.

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