1. Product Overview:The German E+H PMP71 digital intelligent differential pressure transmitter uses a metal diaphragm and is mainly used in process industries to measure the pressure, level, volume, and mass of liquids and gases. The PMP71 is designed for high-pressure measurement applications, with a maximum operating pressure of up to 700 bar. It features a quick setting function and adjustable range. The design complies with IEC61508 standards, meeting SIL2/3 functional safety requirements. It provides MID measurement certification, suitable for measurement handover.

Here are the key features of the Endress+Hauser Cerabar PMP71 digital pressure transmitter:

High Accuracy: Standard accuracy of ±0.05%, with a “Platinum” version offering up to ±0.025% for critical applications.

Wide Measuring Range: Handles pressures from –1/0 up to 700 bar (–15/0 up to 10,500 psi), suitable for both low and ultra-high pressure processes.

Robust Sensor Design: Welded metallic membrane with piezoresistive sensor ensures long-term stability and resistance to harsh media.

Process Compatibility: Works with gases, steam, and liquids; ideal for pressure, level, volume, or mass measurements.

Communication Protocols: Supports 4–20 mA with HART, PROFIBUS PA, and FOUNDATION Fieldbus for seamless integration.

Safety Certifications: SIL2/3 certified per IEC 61508, with explosion protection, hygienic, marine, and custody transfer approvals.

Smart Setup: Quick commissioning via local display and HistoROM data management for easy maintenance and diagnostics.

Housing Options: Two-chamber aluminum or stainless steel (316L) housing for durability and environmental protection.

Overload Protection: Built-in overload resistance and function monitoring from sensor to electronics.

Modular Integration: Available with pre-mounted manifolds, leak-tested and ready for installation.

2. E+H PMP71 Differential Pressure Transmitter Product Features and Specifications:
 

3. Frequently Asked Questions – Cerabar PMP71

1. What is the Cerabar PMP71 used for? 

It’s designed for absolute and gauge pressure measurement in gases, steam, or liquids. Common applications include process pressure, level, volume, and mass measurement in industrial environments.

2. Is the PMP71 suitable for differential pressure measurement? 

No, the PMP71 is not a differential pressure transmitter. For differential applications, Endress+Hauser offers the Deltabar series.

3. What is the maximum pressure it can handle? 

Up to 700 bar (10,500 psi), making it ideal for high-pressure applications.

4. What communication protocols are supported? 

It supports 4–20 mA with HART, PROFIBUS PA, and FOUNDATION Fieldbus, allowing seamless integration into most control systems.

5. What is HistoROM and how does it help? 

HistoROM is a data management system that stores configuration and calibration data. It simplifies device replacement, commissioning, and troubleshooting.

6. What certifications does it carry? 

The PMP71 is certified for SIL2/3 (IEC 61508), explosion protection, hygienic, marine, and custody transfer applications.

7. Can it be used in hygienic or marine environments? 

Yes, it offers hygienic process connections and marine approvals, making it suitable for food, pharma, and offshore applications.

8. What materials are used in the sensor and housing? 

The sensor uses a welded metallic membrane (316L, Alloy C, or Rhodium), and the housing is available in aluminum or stainless steel (316L).

9. Is local configuration possible? 

Yes, it features an optional LCD display with menu-guided setup, allowing local commissioning without external tools.

10. What makes the PMP71 stand out? 

Its high accuracy, robust design, modular integration, and smart diagnostics make it a top-tier choice for demanding process environments.

4. Application Fields:
Dual-chamber aluminum or stainless steel (316L) housing.
Process Connection: Thread, Flange.
Temperature Range: -40 to +125°C (-40 to +257°F).
Pressure Range: +100 mbar to +700 bar (+1.5 to +10,500 psi).
Accuracy Error: ±0.075%, "Platinum type" ±0.05%.
International explosion protection certification, WHG overflow protection, EN 10204-3.1, marine certification.

　　Friendly Reminder:Due to the complex selection parameters of the E+H Cerabar PMP71 digital intelligent differential pressure transmitter, if you would like specific product selection and model quotations, please feel free to consult online.