Technical Data
CompareContinuous / Liquids
| Measuring Principle | Absolute and gauge pressure |
| Characteristic / Application | Cost-effective pressure transducer, piezoresistive sensor with metallic measuring diaphragm |
| Supply / Communication | 10…30 VDC |
| Accuracy | 0.3% |
| Long term stability | 0.2% of URL/year |
| Ambient temperature | -40…+85°C (-40…+185°F) |
| Process temperature | -40…+100°C (-40…+212°F) |
| Process pressure / max. overpressure limit | 600 bar (9000 psi) |
| Pressure measuring range | 400 mbar…+400 bar (6...+6000psi) |
| Process connection | Thread: G1/4, G1/2, MNPT1/4, MNPT1/2, DIN13, JIS R1/2 |
| Communication | 4...20 mA, IO-Link |
| Certificates / Approvals | ATEX, FM, CSA, IEC Ex, NEPSI, UK Ex |
| Design approvals | EN 10204-3.1 Final inspection report Cleaned from oil and grease |
| Marine approval | DNV/ GL/ ABS/ LR/ RINA |
Pressure
| Measuring Principle | Absolute and gauge pressure |
| Characteristic | Cost-effective pressure transducer, piezoresistive sensor with metallic measuring diaphragm |
| Supply voltage | 10…30 VDC |
| Reference Accuracy | 0.3 % |
| Long term stability | 0.2 % of URL/year |
| Process temperature | -40 °C…+100 °C (-40 °F…+212 °F) |
| Ambient temperature | -40 °C…+85 °C (-40 °F…+185 °F) |
| Measuring cell | +400 mbar…+400 bar (+6 psi...+6000 psi) |
| Max. overpressure limit | 600 bar (9000 psi) |
| Process connection | Threads: G1/4, G1/2, MNPT1/4, MNPT1/2, DIN13, JIS R1/2 |
| Communication | 4...20 mA, IO-Link |
| Certificates / Approvals | ATEX, FM, CSA, IEC Ex, NEPSI, UK Ex |
| Design approvals | EN 10204-3.1 Final inspection report Cleaned from oil and grease |
| Marine approvals | DNV/ GL/ ABS/ LR/ RINA |
The Cerabar PMP21 is a highly cost-effective ultra-compact pressure transmitter. It uses a piezoresistive sensor with an absolute or gauge pressure measuring range of 400 mbar..100 bar. The PMP21 can measure under demanding conditions in the process industry, with a maximum degree of protection of IP68 and high-quality materials (e.g. 316L). Numerous approvals (e.g. explosion protection approval or marine approval) make it suitable for most measuring applications.
Advantages
Ultra-compact design and user-configurable measuring range allow simple, time-saving instrument installation and setup in the plant
Reference measuring accuracy of 0.3% with high long-term stability and high repeatability, ensuring high-quality process monitoring
Made entirely of 316L for improved process compatibility; versions with IP68 degree of protection can be used submerged in water
The PMP21 has numerous explosion protection and marine approvals, and an EN10204 3.1 material certificate is also available to meet documentation, traceability and device safety requirements
Application areas
Pressure transmitter with piezoresistive metal diaphragm for absolute or gauge pressure measurement of gases or liquids.
Process connection: thread
Process temperature: -40...+100°C (-40...+212°F)
Process pressure: 400 mbar...+100 bar (6...1,500 psi)
Measuring accuracy: ±0.3% of full scale
International explosion protection approval, marine approval
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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 · 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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