Technical Data
CompareContinuous / Liquids
| Measuring Principle | Differential pressure |
| Characteristic / Application | Smart differential pressure transmitter with one or two capillaries, full range of certifications and Heartbeat Technology. Intuitive and clear wizards for commissioning, proof tests and verification. |
| Specialities | Heartbeat Technology, Bluetooth® Operation and maintenance SmartBlue App, LED Module, RFID TAG for easy identification, Plug and play functionalities HistoROM |
| Supply / Communication | Ex d, Ex e, non-Ex:: 10.5...35V DC Ex i: 10.5...30V DC |
| Accuracy | Standard: up to 0.1 % |
| Long term stability | 0.025 % of URL/ year 0.05 % of URL/ 5 years 0.10 % of URL/ 10 years |
| Ambient temperature | -54°C...+85°C (-65°F...+185°F) |
| Process temperature | -40°C...+400°C (-40°F...+752°F) |
| Process pressure / max. overpressure limit | 160 bar (2.400 psi) |
| Pressure measuring range | 100 mbar...40 bar (1.5psi...600 psi) |
| Main wetted parts | 316L, AlloyC, Tantal, Monel PTFE, Gold |
| Process connection | Thread: MNPT1/2, G1/2 Flange: NPS 2"...4", DN50...100 |
| Max. measurement distance | 160 m (525 ft) H2O |
| Communication | 4...20 mA HART PROFIBUS PA PROFINET with Ethernet-APL Bluetooth® wireless technology and app (optional) |
| Certificates / Approvals | ATEX, CSA, IECEx, JPN Ex, INMETRO, NEPSI, UK Ex |
| Safety approvals | SIL |
| Design approvals | EN 10204-3.1, NACE MR0175, NACE MR0103 |
| Options | Touch control display |
| Application limits | Keine |
Pressure
| Measuring Principle | Differential pressure |
| Characteristic | Specialist with one or two capillaries for accurate differential pressure measurement. Intuitive and clear wizards for commissioning, proof tests and verification. |
| Supply voltage | Ex d, Ex e, non-Ex: 10.5...35V DC Ex i: 10.5...30V DC |
| Reference Accuracy | Standard: up to 0.1 % |
| Long term stability | 0.025 % of URL/ year 0.05 % of URL/ 5 years 0.10 % of URL/ 10 years |
| Process temperature | -70°C...+400°C (-94°F...+752°F) |
| Ambient temperature | -40°C...+85°C (-40°F...+185°F) |
| Measuring cell | 100 mbar...40 bar (1.5 psi...600 psi) |
| Smallest calibratable span | 5 mbar (0.075 psi) |
| Vacuum resistance | 50 mbar (0.73 psi) |
| Max. Turn down | 100:1 |
| Max. overpressure limit | 240 bar (3600 psi) |
| Process connection | Thread: MNPT1/2, G1/2 Flange: NPS 2"...4", DN50...100 |
| Material process membrane | 316L, AlloyC, Tantal, Monel PTFE Gold |
| Material gasket | PTFE, FKM, EPDM, FFKM |
| Fill fluid | Silicone oil, inert oil, vegetable oil, low- / high temperature oil |
| Material housing | Aluminium, 316L |
| Communication | 4...20 mA HART PROFIBUS PA PROFINET with Ethernet-APL Bluetooth® wireless technology and app (optional) |
| Certificates / Approvals | ATEX, CSA, IECEx, JPN Ex, INMETRO, NEPSI, UK Ex |
| Safety approvals | SIL |
| Design approvals | EN10204-3.1, NACE MR0175, NACE MR0103 |
| Specialities | Heartbeat Technology, Bluetooth® Operation and maintenance SmartBlue App, LED Module, RFID TAG for easy identification, Plug and play functionalities, HistoROM |
PMD78B is a member of the new generation of Deltabar transmitters. The transmitter is robust and features a secure Bluetooth connection, allowing remote operation of the instrument via a mobile device with the app installed. It supports on-demand maintenance and increases plant availability.
The software is equally easy to use. The intuitive operating wizard guides the user step by step through instrument setup, functional safety tests and verification tests.
Heartbeat Technology provides self-verification and self-monitoring functions that can detect process anomalies, such as blocked impulse lines.
Benefits
Wireless remote control of devices in hard-to-reach areas using the SmartBlue App
Reduced risk of system failure, error-free SIL commissioning and guided functional safety testing of the instrument
Heartbeat Technology verifies instrument health without interrupting the process. Increases plant availability.
Clear instrument status indication: the instrument immediately switches from green to red display as soon as a diagnostic message occurs
Applications
Maximum working pressure 40 bar (600 psi)
Maximum temperature of 400°C (752 °F) for instruments with diaphragm seal systems
Maximum working static pressure 160 bar (2400 psi)
Highest measurement accuracy of +/- 0.075%
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Technical documentation
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Source: Endress+Hauserpublic information from the website
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Differential Pressure Measurement Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of Differential Pressure Measurement.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Differential Pressure Measurement for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · Differential Pressure Measurement Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of Differential Pressure Measurement.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Differential Pressure Measurement for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · Differential Pressure Measurement Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of Differential Pressure Measurement.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Differential Pressure Measurement for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · Differential Pressure Measurement Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of Differential Pressure Measurement.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Differential Pressure Measurement for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
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