Technical Data
CompareContinuous / Liquids
| Measuring Principle | Absolute and gauge pressure |
| Characteristic / Application | Digital transmitter with piezoresistive sensor and welded metallic membrane Modular transmitter Long term stability Enhanced safety via self diagnostic functions Secondary process barrier |
| Specialities | diagnostic functionalities different languages in software |
| Supply / Communication | 4...20mA HART: 10,5...45V DC Ex ia: 10,5...30V DC PROFIBUS PA / FOUNDATION Fieldbus: 9...32V DC |
| Accuracy | Standard: 0.05% Platinum: up to 0.025% |
| Long term stability | 0,05% of URL/year |
| Ambient temperature | -50°C...85°C (-58°F...185°F) |
| Process temperature | -40°C...125°C (-40°F...257°F) |
| Process pressure / max. overpressure limit | 1050bar (15,750psi) |
| Pressure measuring range | 400 mbar...700 bar (5.8 psi...10.500 psi) |
| Main wetted parts | Alloy C276 316L Rhodium |
| Process connection | Threads Flanges (DIN, ASME, ...) with flush membrane |
| Max. measurement distance | 7000m (22.966ft) H2O |
| Communication | 4...20 mA HART 1- 5V DC Low Power PROFIBUS PA FOUNDATION Fieldbus |
| Certificates / Approvals | ATEX, FM, CSA, CSA C/US, IEC Ex, JPN Ex, INMETRO, NEPSI, EAC |
| Safety approvals | SIL |
| Design approvals | EN 10204-3.1 NACE MR0175, MR0103 |
| Marine approval | GL/ ABS |
| Drinking water approvals | NSF |
| Options | HistoROM/M-Dat 4-line digital display SS- or Aluminiumhousing Separate housing |
| Successor | PMP71B |
| Application limits | Measuring cell: Metal welded If pressurized, possibly use differential pressure meas-urement with two pressure transmitters (electronic dp). Observe ratio head pressure : hydrostatic pressure |
Pressure
| Measuring Principle | Absolute and gauge pressure |
| Characteristic | Digital transmitter with piezoresistive sensor and welded metallic membrane Modular transmitter Long term stability Enhanced safety via self diagnostic functionsSecondary process barrier |
| Supply voltage | 4...20 mA HART 10,5...45V DC (Non Ex): Ex ia: 10,5...30V DC PROFIBUS PA: 9...32 V DC (Non Ex) FOUNDATION Fieldbus: 9...32 V DC (Non Ex) |
| Reference Accuracy | Standard: 0.05% Platinum: up to 0.025% |
| Long term stability | 0.05 % of URL/ year 0.07 % of URL/ 5 years 0.1 % of URL/ 10 years |
| Process temperature | -40°C...125°C (-40°F...257°F) |
| Ambient temperature | -50°C...85°C (-58°F...185°F) |
| Measuring cell | 400 mbar...700 bar (5.8 psi...10.500 psi) relative/ absolute |
| Smallest calibratable span | 5 mbar (0.075 psi) |
| Vacuum resistance | 10 mbar (0.15 psi) |
| Max. Turn down | 100:1 |
| Max. overpressure limit | 1050 bar (15.750 psi) |
| Process connection | Thread: G1/2...G2, R1/2, MNPT1/2...MNPT2, R1/2 Flange: DN25...DN80, ASME 1"...4", JIS 10K...20K |
| Material process membrane | 316L, AlloyC, Rhodium> Gold |
| Material gasket | None, measuring cell welded |
| Fill fluid | Silicone oil, Inert oil |
| Material housing | Die-cast aluminum, AISI 316L |
| Communication | 4...20 mA HART 1- 5V DC Low Power PROFIBUS PA FOUNDATION Fieldbus |
| Certificates / Approvals | ATEX, FM, CSA, CSA C/US, IEC Ex, JPN Ex, INMETRO, NEPSI, EAC, UK Ex |
| Safety approvals | SIL |
| Design approvals | EN10204-3.1 NACE MR0175 |
| Marine approvals | GL/ABS |
| Drinking water approvals | NSF |
| Specialities | Diagnostic functions |
| Successor | PMP71B |
The Cerabar PMP71 digital pressure measuring transmitter uses a metal diaphragm and is mainly used in the process industry to measure the pressure, level, volume and mass of liquids and gases. The PMP71 is designed for high-pressure measurement applications with a maximum working pressure of up to 700bar. It features a quick setup function and an adjustable measuring range. The design complies with IEC 61508 and meets SIL2/3 functional safety requirements. It is available with a MID custody transfer certificate and is suitable for custody transfer.
Advantages
Precise measurement even under changing process temperature conditions
HistoROM®/M-DAT memory unit enables traceability of device settings and measured values
IEC 61508 certified by TÜV SÜD, suitable for SIL2/SIL3 functional safety process monitoring (max.…min.…range)
Overload protection and function monitoring from the measuring diaphragm to the electronics
Quick setup menu for fast setting of basic commissioning parameters, menu-guided operation with advanced fault diagnostics
Optional manifold: also pressure-tested
Seamless, independent system integration (HART/PA/FF)
Areas of application
Dual-compartment aluminum or stainless steel (316L) housing
Process connection: thread, flange
Temperature range: -40 to +125°C (-40 to +257°F)
Pressure range: +100mbar to +700bar (+1.5 to +10,500psi)
Accuracy: ±0.05%, "platinum version" ±0.025%
International explosion protection approval, WHG overflow protection, hygienic approval, marine approval, SIL
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Technical documentation
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Source:Endress+Hauserwebsite public information
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Gauge and Absolute Pressure 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 Gauge and Absolute Pressure.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Gauge and Absolute Pressure 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 · Gauge and Absolute Pressure 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 Gauge and Absolute Pressure.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Gauge and Absolute Pressure 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 · Gauge and Absolute Pressure 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 Gauge and Absolute Pressure.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Gauge and Absolute Pressure 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 · Gauge and Absolute Pressure 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 Gauge and Absolute Pressure.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Gauge and Absolute Pressure 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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