Technical Data
CompareContinuous / Liquids
| Measuring Principle | Differential pressure |
| Characteristic / Application | Differential pressure transmitter which detects process anomalies like plugged impulse lines. Intuitive and clear wizards for commissioning, proof tests and verification. |
| Specialities | Heartbeat Technology, Bluetooth® Operation and maintenance with 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 0.05 % Platinum: up to 0.035 % |
| 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...+110°C (-40°F...+230°F) |
| Process pressure / max. overpressure limit | 420 bar (6300 psi) |
| Pressure measuring range | 10 mbar...250 bar (0.15 psi...3750 psi) |
| Main wetted parts | 316L, AlloyC, Tantal, Monel, Gold |
| Process connection | NPT1/4-18, RC1/4" |
| Max. measurement distance | 400 m (1,312 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 |
| Drinking water approvals | NSF, KTW |
| Options | Touch control display |
| Application limits | None |
Gas
| Measuring Principle | Differential pressure |
| Product headline | Differential pressure transmitter which detects process anomalies like plugged impulse lines, Intuitive and clear wizards for commissioning, proof tests and verification |
| Sensor features | Fill fluid: Silicone oil, Inert oil |
| Transmitter features | LED Module, RFID TAG for easy identification, Plug and play functionalities, HistoROM |
| Wetted materials | 316L, AlloyC, Tantal, Monel, Gold |
| Measured variables | Differential pressure |
| Max. measurement error | Standard: up to 0.05 % Platinum: up to 0.035 % |
| Measuring range | 10 mbar...250 bar (0.15 psi...3750 psi) |
| Max. process pressure | 420 bar (6300 psi) |
| Ambient temperature range | -40°C...+85°C (-40°F...+185°F) |
| Transmitter housing material | Aluminium, 316L |
| Display/Operation | 4-line backlit display with touch control (operation from outside) Bluetooth® Operation and maintenance SmartBlue App, Configuration via local display and operating tools possible |
| Outputs | 4...20 mA HART |
| Digital communication | HART |
| Hazardous area approvals | ATEX, CSA, IECEx, JPN Ex, INMETRO, NEPSI, UK Ex |
| Functional safety | SIL |
| Metrological approvals and certificates | Heartbeat Technology |
| Pressure approvals and certificates | CRN |
| Material certificates | EN10204-3.1, NACE MR0175, NACE MR0103 |
Liquids
| Measuring Principle | Differential pressure |
| Product headline | Differential pressure transmitter which detects process anomalies like plugged impulse lines, Intuitive and clear wizards for commissioning, proof tests and verification |
| Sensor features | Fill fluid: Silicone oil, Inert oil |
| Transmitter features | LED Module, RFID TAG for easy identification, Plug and play functionalities, HistoROM |
| Wetted materials | 316L, AlloyC, Tantal, Monel, Gold |
| Measured variables | Differential pressure |
| Max. measurement error | Standard: up to 0.05 % Platinum: up to 0.035 % |
| Measuring range | 10 mbar...250 bar (0.15 psi...3750 psi) |
| Max. process pressure | 420 bar (6300 psi) |
| Ambient temperature range | -40°C...+85°C (-40°F...+185°F) |
| Transmitter housing material | Aluminium, 316L |
| Display/Operation | 4-line backlit display with touch control (operation from outside) Bluetooth® Operation and maintenance SmartBlue App, Configuration via local display and operating tools possible |
| Outputs | 4...20 mA HART |
| Digital communication | HART |
| Hazardous area approvals | ATEX, CSA, IECEx, JPN Ex, INMETRO, NEPSI, UK Ex |
| Functional safety | SIL |
| Metrological approvals and certificates | Heartbeat Technology |
| Pressure approvals and certificates | CRN |
| Material certificates | EN10204-3.1, NACE MR0175, NACE MR0103 |
Pressure
| Measuring Principle | Differential pressure |
| Characteristic | Differential pressure transmitter which detects process anomalies like plugged impulse lines. 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 0.05 % Platinum: up to 0.035 % |
| Long term stability | 0.025 % of URL/ year 0.05 % of URL/ 5 years 0.10 % of URL/ 10 years |
| Process temperature | -40°C...+110°C (-40°F...+230°F) |
| Ambient temperature | -40°C...+85°C (-40°F...+185°F) |
| Measuring cell | 10 mbar...250 bar (0.15 psi...3750 psi) |
| Smallest calibratable span | 0.25 mbar (0.00375 psi) |
| Vacuum resistance | 25 mbar (0.0375 psi) |
| Max. Turn down | 100:1 |
| Max. overpressure limit | 630 bar (9,450 psi) |
| Process connection | NPT1/4-18 RC1/4" |
| Material process membrane | 316L, AlloyC, Tantal, Monel, Gold |
| Material gasket | PTFE, FKM, EPDM, FFKM |
| Fill fluid | Silicone oil, Inert 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 MR0103, NACE MR0175 |
| Drinking water approvals | NSF, KTW |
| Specialities | Heartbeat Technology, Bluetooth® Operation and maintenance SmartBlue App, LED Module, RFID TAG for easy identification, Plug and play functionalities, HistoROM |
Steam
| Measuring Principle | Differential pressure |
| Product headline | Differential pressure transmitter which detects process anomalies like plugged impulse lines, Intuitive and clear wizards for commissioning, proof tests and verification |
| Sensor features | Fill fluid: Silicone oil, Inert oil |
| Transmitter features | LED Module, RFID TAG for easy identification, Plug and play functionalities, HistoROM |
| Wetted materials | 316L, AlloyC, Tantal, Monel, Gold |
| Measured variables | Differential pressure |
| Max. measurement error | Standard: up to 0.05 % Platinum: up to 0.035 % |
| Measuring range | 10 mbar...250 bar (0.15 psi...3750 psi) |
| Max. process pressure | 420 bar (6300 psi) |
| Ambient temperature range | -40°C...+85°C (-40°F...+185°F) |
| Transmitter housing material | Aluminium, 316L |
| Display/Operation | 4-line backlit display with touch control (operation from outside) Bluetooth® Operation and maintenance SmartBlue App, Configuration via local display and operating tools possible |
| Outputs | 4...20 mA HART |
| Digital communication | HART |
| Hazardous area approvals | ATEX, CSA, IECEx, JPN Ex, INMETRO, NEPSI, UK Ex |
| Functional safety | SIL |
| Metrological approvals and certificates | Heartbeat Technology |
| Pressure approvals and certificates | CRN |
| Material certificates | EN10204-3.1, NACE MR0175, NACE MR0103 |
Applications
PMD75B 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 very 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.
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Maximum working pressure 250 bar (3750 psi) (gauge/absolute) and 40 bar (600 psi) (differential)
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Maximum working static pressure 420 bar (6300 psi)
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Highest measurement accuracy of +/- 0.035%
Benefits
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Heartbeat Technology verifies instrument health without interrupting the process. Increases plant availability.
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Clear instrument status indication: the instrument immediately switches from green to red display as soon as a diagnostic message occurs
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Reduced risk of system failure, error-free SIL commissioning and guided functional safety testing of the instrument
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Wireless remote control of devices in hard-to-reach areas using the SmartBlue App
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Technical documentation
Technical data
Documents/Manuals/Software
Accessories/Spare parts
Orifice plate flowmeter measurement principle video
Pitot tube measurement principle video
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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