A Differential Pressure Transmitter Built for More Than Measurement
The Endress+Hauser Deltabar PMD75B is designed for differential pressure measurement in demanding industrial processes, with applications extending to level and flow measurement.
What makes the PMD75B particularly interesting is the additional information it can provide about the measurement point itself. Its Heartbeat Technology includes verification and monitoring functions that can help identify process anomalies such as plugged impulse lines.
High Accuracy Across a Wide Measuring Range
The PMD75B covers differential pressure measuring ranges from 10 mbar to 250 bar. Standard versions offer reference accuracy of up to 0.05%, while the Platinum version can achieve up to 0.035%.
This combination gives the instrument enough flexibility for applications ranging from relatively low differential pressures to high-pressure industrial processes.
Key measurement values:
- Measuring range: 10 mbar…250 bar
- Standard accuracy: up to 0.05%
- Platinum accuracy: up to 0.035%
- Long-term stability: 0.025% of URL/year
- Maximum process pressure: 420 bar
Smart Diagnostics for the Process Connection
A differential pressure transmitter can only provide useful process information when the pressure reaches the measuring cell correctly. The PMD75B addresses this with Heartbeat Technology, which provides monitoring and verification functions and can detect unwanted anomalies such as plugged impulse lines.
This gives the PMD75B a practical advantage in processes where a changing measurement may not always be caused by the process itself.
Easier Commissioning and Maintenance
The PMD75B belongs to Endress+Hauser's newer Deltabar generation and is designed to simplify device handling.
Intuitive wizards guide users through commissioning, proof tests and verification, while the optional Bluetooth connection and SmartBlue App allow operation and maintenance from a mobile device.
The transmitter also includes features such as an LED module, RFID tag, plug-and-play functionality and HistoROM, depending on configuration.
Ready for Different Process Requirements
The PMD75B is available with wetted materials including 316L, Alloy C, Tantal, Monel and Gold, allowing different configurations to be selected according to the process medium and application requirements.
The transmitter supports process temperatures from -40°C to +110°C and a maximum process pressure of 420 bar.
Flexible Communication for Plant Integration
Depending on the selected version, the PMD75B can be supplied with 4–20 mA HART, PROFIBUS PA or PROFINET with Ethernet-APL. Optional Bluetooth communication is available for wireless operation and maintenance through the SmartBlue App.
This makes the PMD75B suitable for both conventional instrumentation systems and newer digital plant architectures.
One Transmitter, Several Measurement Tasks
Although the PMD75B is primarily a differential pressure transmitter, its application range extends to level and flow measurement.
It can therefore be considered when a project requires differential pressure measurement as part of a broader process measurement system, rather than as an isolated pressure instrument.
Key Features
- Differential pressure measurement
- Suitable for pressure, level and flow applications
- Reference accuracy up to 0.035% with Platinum version
- Measuring range 10 mbar…250 bar
- Maximum process pressure 420 bar
- Process temperature -40…+110°C
- Heartbeat Technology for verification and process monitoring
- Detection of process anomalies such as plugged impulse lines
- Bluetooth and SmartBlue App for operation and maintenance
- Guided wizards for commissioning, proof tests and verification
- 4–20 mA HART, PROFIBUS PA and PROFINET with Ethernet-APL
- Wetted materials including 316L, Alloy C, Tantal, Monel and Gold
- SIL and international hazardous-area approvals available
- RFID identification, LED module, HistoROM and plug-and-play functionality
Typical Applications
Differential Pressure Measurement
For monitoring pressure differences between two points in industrial process systems.
Level Measurement
Differential pressure measurement can be used for level applications where hydrostatic pressure is related to liquid level.
Flow Measurement
Suitable for differential-pressure-based flow measurement applications when used with the appropriate primary element.
Process Monitoring
Heartbeat Technology provides additional verification and monitoring functions that can help identify anomalies affecting the measurement.
High-Pressure Industrial Processes
With a maximum process pressure of 420 bar, the PMD75B can be configured for demanding pressure environments.
FAQ
What is the Endress+Hauser Deltabar PMD75B used for?
The PMD75B is a differential pressure transmitter designed for differential pressure, level and flow measurement applications.
How accurate is the Deltabar PMD75B?
The standard version offers reference accuracy of up to 0.05%, while the Platinum version offers accuracy of up to 0.035%.
What is the measuring range of the PMD75B?
The specified differential pressure measuring range is 10 mbar to 250 bar.
What is the maximum process pressure?
The PMD75B has a maximum process pressure of 420 bar (6300 psi).
Can the PMD75B detect plugged impulse lines?
Yes. Endress+Hauser specifically describes the PMD75B as a differential pressure transmitter that can detect process anomalies such as plugged impulse lines, using its Heartbeat Technology.
Can the PMD75B be operated wirelessly?
Yes. An optional Bluetooth connection enables operation and maintenance through the SmartBlue App.
What communication protocols are available?
Depending on the selected configuration, the PMD75B supports 4–20 mA HART, PROFIBUS PA and PROFINET with Ethernet-APL. Optional Bluetooth is available for wireless operation and maintenance.
What materials are available for the wetted parts?
Depending on the configuration, Endress+Hauser lists 316L, Alloy C, Tantal, Monel and Gold as wetted materials.
