E&H PMD75 pressure transmitter

E&H PMD75 pressure transmitter

1. Product Overview

The E&H PMD75 pressure transmitter features a piezoresistive sensor with a welded metallic membrane, delivering exceptional accuracy, long-term stability, and overload resistance-13. The E&H PMD75-ABB7CC2ECAB belongs to the Deltabar S platform, a modular transmitter family that supports seamless integration with HART, PROFIBUS PA, and FOUNDATION Fieldbus communication protocols-7.

A three-key pushbutton interface enables straightforward commissioning and operation, while the integrated HistoROM data module facilitates efficient management of process and device parameters. The device is certified for functional safety up to SIL2/SIL3 according to IEC 61508-1.

2. Complete Technical Specifications

3. Order Code Breakdown: E&H PMD75-ABB7CC2ECAB

The E&H PMD75-ABB7CC2ECAB represents a fully configured differential pressure transmitter with specific selections for approval, output, housing, nominal range, calibration, and process connection. Below is the decoded configuration:

This configuration is well-suited for low-differential pressure applications requiring 4-20 mA HART communication, local display, and 316L wetted parts for compatibility with mildly corrosive media-12-7.

4. Performance Characteristics

The E&H PMD75 pressure transmitter achieves a reference accuracy of up to 0.035% when ordered with the Platinum option, making it suitable for custody transfer and high-precision flow measurement applications-7. The long-term stability of 0.05% of URL per year ensures sustained measurement reliability over extended operational periods-1.

For dynamic response, the dead time of the E&H PMD75-ABB7CC2ECAB is typically under 100 milliseconds for the HART output variant, with adjustable damping from 0 to 999 seconds to accommodate process noise and pulsation-7. The device supports a turn-down ratio of 100:1, allowing a single transmitter to cover a wide range of operating conditions without recalibration-13.

5. Communication and Integration

The E&H PMD75 pressure transmitter supports three primary communication protocols:

4-20 mA HART — Universal analog output with digital HART communication for parameterization and diagnostics. Supply voltage range: 10.5–45 V DC (non-Ex)-1.

PROFIBUS PA — Digital fieldbus communication compliant with IEC 61158-2, enabling integration into process automation systems. Supply: 9–32 V DC-1.

FOUNDATION Fieldbus — Same electrical layer as PROFIBUS PA, supporting device description and function block-based control strategies-1.

The modular design of the E&H PMD75-ABB7CC2ECAB allows field replacement of sensor, electronics, or display modules without recalibration, reducing downtime and maintenance costs-1.

6. Applications

The E&H PMD75 pressure transmitter is deployed in the following primary applications:

Flow measurement — Volume or mass flow measurement in conjunction with differential pressure primary elements (orifice plates, pitot tubes, Venturi tubes) for gases, vapors, and liquids-7.

Level measurement — Level, volume, or mass measurement in liquids, including interface detection and density compensation-7.

Differential pressure monitoring — Filter monitoring, pump differential pressure surveillance, and heat exchanger pressure drop tracking-7.

High-temperature applications — When paired with diaphragm seals, the E&H PMD75-ABB7CC2ECAB can support process temperatures up to 400°C (752°F)-7.

7. Safety and Compliance

The E&H PMD75 pressure transmitter is designed to IEC 61508 and certified by TÜV SÜD for functional safety applications up to SIL3-13. Key safety features include:

Gas-tight feedthrough providing a secondary process barrier

Continuous function monitoring from measuring cell to electronics

Self-diagnostic functions for early fault detection

Overload resistance up to 420 bar with function-monitored design-1

International explosion protection approvals include ATEX, FM, CSA, IECEx, INMETRO, NEPSI, and TIIS, ensuring global deployment capability in hazardous areas-1. Additional certifications include WHG overfill prevention, marine approvals, and NACE compliance for sour service environments-46.

8. Ordering Information

For additional order code variants or custom configurations, please consult the official Endress+Hauser product configurator or contact our technical sales team with your specific application requirements.