Products Description

The E+H Cerabar PMP71B is a high-performance pressure transmitter utilizing ceramic capacitive sensor technology, specifically designed for demanding process pressure measurement applications in industries such as chemicals, oil & gas, power generation, and water treatment. Renowned for its exceptional long-term stability, high accuracy, and superior overpressure resistance, it delivers reliable pressure monitoring in harsh industrial environments and is a key instrument for ensuring process safety and optimized control.

Core Technical Features

Feature	Details
PlanarTEC™ Ceramic Technology	• Monolithic planar ceramic measuring diaphragm with smooth, inert surface, resistant to corrosion and abrasion. • Oil-free design eliminates temperature effects from fill fluid, ensuring long-term stability. • Excellent resistance to crystallization and adhesion for complex media like slurries and polymers.
Extreme Overpressure Resistance	• Symmetrical sensor design withstands very high overpressure (up to 40 MPa) on both sides of the diaphragm. • Effectively resists water hammer, pressure shocks, and vacuum conditions.
High Accuracy & Superior Long-term Stability	• Measurement accuracy up to ±0.075%. • Excellent long-term stability with minimal annual drift, typically better than ±0.1%/10 years. • Excellent temperature effect compensation ensures reliability across a wide temperature range.
Integrated Smart Diagnostics (Heartbeat Technology)	• Provides online self-diagnostics and predictive maintenance support (NAMUR NE107 compliant). • Sensor In-situ Test (SIT) function verifies sensor performance without process interruption. • Clear device health information via status LED and digital interface.
Wide Process Compatibility & Safety	• Multiple wetted part options: Ceramic, Hastelloy, Tantalum, Platinum coating, etc. • SIL 2/3 certified for Safety Instrumented Systems. • Comprehensive explosion-proof certifications: ATEX, IECEx, FM, CSA.
Flexible Communication & Configuration	• Supports multiple protocols: 4…20 mA HART, PROFIBUS PA, FOUNDATION Fieldbus. • Easy setup via local operator interface (with backlit display) or handheld/software. • Modular design facilitates field maintenance and upgrades.
Robust Construction & Mounting Flexibility	• Enclosure rating IP66/67, NEMA 4X for harsh environments. • Various process connections (threaded, flange, hygienic) and mounting brackets available. • Wide operating temperature range: -40℃ to +100℃ (ambient).

Industry Application Advantages

1. Unmatched Reliability & Process Safety:

· "Wear-free" ceramic sensor and extreme overpressure capability make it ideal for safety-critical applications, significantly reducing production risks from instrument failure.

2. Lowest Total Cost of Ownership (TCO):

· Extended calibration intervals (due to excellent long-term stability) drastically reduce maintenance costs and downtime.

· Predictive maintenance helps avoid unplanned shutdowns and optimizes maintenance schedules.

3. Simplifies Complex Applications:

· With top-tier material options and sensor technology, it can directly measure highly corrosive, clogging, or viscous media that challenge traditional metal diaphragm transmitters, eliminating complex isolation systems.

4. Enhanced Operational Efficiency:

· High-accuracy measurement provides a reliable data foundation for Advanced Process Control (APC) and optimization, improving yield, reducing energy consumption, and minimizing product variation.

· Intelligent diagnostics enable maintenance staff to quickly pinpoint issues, reducing troubleshooting time.

Suitable Application Scenarios

The Cerabar PMP71B is particularly suited for pressure measurement applications with extremely high demands for measurement stability, safety, and media compatibility.

1. Chemical & Petrochemical Industry

· Applications: Process pressure monitoring in reactors, polymerizers, hydrogenation reactors; pressure measurement in tanks and pipes for aggressive media (chlor-alkali, sulfuric acid, nitric acid); steam system pressure control.

· Value: Premium corrosion-resistant materials ensure long-term reliable operation; high accuracy and stability are key to reaction safety and efficiency.

2. Oil & Gas

· Applications: Separator pressure; pressure monitoring and custody transfer in gas transmission/distribution lines; pressure protection for LNG pumps and heat exchangers; pressure control for downhole safety valves.

· Value: Suitable for hazardous areas (explosion-proof certified); withstands high-pressure shocks; SIL certification meets safety interlock requirements.

3. Power Generation

· Applications: Boiler main steam pressure, feedwater pressure monitoring; fuel gas pressure control for gas turbines; deaerator pressure; slurry pump pressure in Flue Gas Desulfurization (FGD) systems.

· Value: Wide temperature stability and overpressure resistance adapt to plant start-up/shutdown conditions; high accuracy aids unit efficiency optimization.

4. Water Treatment & Environmental

· Applications: Inlet pressure and differential pressure monitoring for high-pressure Reverse Osmosis (RO) membranes; feed pump pressure for sludge dewaterers; deep well pump discharge pressure; water distribution network pressure.

· Value: Ceramic diaphragm resists corrosion and scaling; IP67 rating suits wet environments.

5. Pharmaceutical & Food

· Applications: Bioreactor vessel pressure control; distillation column pressure; CIP system pressure verification; pressure holding in sterile tanks.

· Value: Hygienic connections available; smooth, dead-zone-free surface for easy cleaning and sterilization; complies with relevant industry regulations.