E&H PMP55 pressure transmitter

E&H PMP55 pressure transmitter

Product Overview

The Endress+Hauser Cerabar PMP55 is a digital pressure transmitter engineered with a fully welded metal diaphragm seal, specifically designed for demanding process and hygienic applications requiring extreme temperature and pressure measurement capabilities. As a member of the Cerabar M series, the E&H PMP55 pressure transmitter excels in measuring absolute and gauge pressure, level, volume, and mass in gases, steam, and liquids across process engineering industries-1.

What distinguishes the PMP55 from its Cerabar M counterparts is its exceptional temperature tolerance. While the PMP51 handles process temperatures up to 130°C, the PMP55 extends that range dramatically to 400°C (752°F) on the low end and withstands extreme cold down to -70°C (-94°F)-42-1. This makes the Cerabar PMP55 the preferred choice for high-temperature process applications such as steam lines, thermal oil systems, chemical reactors, and industrial furnaces where other transmitters would fail.

The transmitter operates on a piezoresistive measuring cell with a metal welded process isolating diaphragm, delivering smart and reliable performance across a pressure measuring range from 1 bar to 400 bar (15 psi to 6000 psi)-4. With an overpressure limit of 600 bar (9000 psi), the device offers substantial safety margins for fluctuating process conditions-4.

Key Technical Specifications

Sources: Compiled from Endress+Hauser technical documentation and manufacturer specifications-4-42.

Model Code Breakdown: PMP55-AA11JB1HGBAEJB2B

The complete product designation PMP55-AA11JB1HGBAEJB2B encodes all device configuration choices through a structured alphanumeric ordering system. Each position corresponds to a specific feature selection. Endress+Hauser provides full code breakdowns via their online Device Viewer (www.endress.com/deviceviewer) or on delivery notes-.

Below is the detailed interpretation:

Interpretation Summary: The PMP55-AA11JB1HGBAEJB2B is a non-hazardous area pressure transmitter with basic 4-20 mA analog output, no local display, F31 aluminum housing, G1/2 thread connection, 316L wetted parts and membrane, silicone oil fill, and standard reference accuracy. This configuration is ideal for general industrial high-temperature applications where HART communication and explosion protection are not required, offering a cost-effective solution for straightforward pressure monitoring tasks up to 400°C process temperature.

Functional Capabilities and Applications

The Cerabar PMP55 is engineered for extreme operating conditions:

High-temperature pressure measurement in steam systems, thermal oil circuits, chemical reactors, and industrial furnaces, with process temperatures reaching 400°C (752°F)

Low-temperature applications down to -70°C (-94°F) for cryogenic processes and cold climate installations

Absolute and gauge pressure measurement in gases, steam, or liquids across all areas of process engineering

Level measurement in open or closed tanks via hydrostatic pressure原理

Volume and mass measurement in process vessels and storage tanks

Hygienic applications with flush-mounted process connections and 3A/EHEDG certifications for food, beverage, and pharmaceutical industries-42

Marine and offshore environments with GL/ABS/LR/DNV marine approvals-42

Process pressure monitoring up to SIL2 in safety instrumented systems (SIS), certified to IEC 61508 Edition 2.0 and IEC 61511 by TÜV NORD-2

The optional TempC Membrane technology minimizes the influence of ambient and process temperature fluctuations, reducing recovery time and enhancing measurement stability in thermally dynamic environments-4.

Performance and Accuracy

The PMP55 delivers outstanding measurement integrity through its piezoresistive sensor technology. The Platinum version achieves reference accuracy of ±0.075%, suitable for custody transfer and critical process control applications-2. Long-term stability remains within 0.1% of URL per year, minimizing recalibration frequency and maintenance costs-4.

Key accuracy considerations:

Standard version: ±0.15% of URL

Platinum version: ±0.075% of URL

Turn down ratio: 100:1 enables flexible span adjustment without compromising performance

Smallest calibratable span: 20 mbar (2.9 psi) for precise low-pressure measurements

Vacuum capability: Suitable for vacuum applications down to -1 bar-4

Electrical Interfaces and Communication

The E&H PMP55 pressure transmitter supports multiple communication protocols for seamless integration into existing control architectures:

IO-Link communication enables seamless integration into automation systems for efficient process monitoring and control, supporting digital transformation initiatives-.

Installation and Commissioning

The PMP55 features a modular concept for straightforward maintenance:

Interchangeable electronics and display modules reduce spare parts inventory

Quick Setup with adjustable measuring range allows simple commissioning, reduces costs and saves time-42

On-site display (optional) provides 8-digit measured value display with bar graph for current indication

Diagnostic functions deliver fault and warning messages for proactive maintenance

Easy menu-guided operation via local display module or remotely via 4-20 mA HART, PROFIBUS PA, or FOUNDATION Fieldbus-42

Quality and Compliance

The PMP55 is manufactured under strict quality management systems and carries numerous global certifications:

For process pressure monitoring up to SIL2, the PMP55 is certified for use in safety instrumented systems (SIS), enhancing plant safety and regulatory compliance-2-4.

Common Stock Configurations

Several PMP55 configurations are regularly stocked by distributors:

Availability varies by region; lead times for non-stock configurations typically range from 2-4 working days-11.