Endress+Hauser Deltabar PMD55-BA21BA77GGBHAJA1A+AA Differential Pressure Transmitter
- Product Name：Endress+Hauser Deltabar PMD55-BA21BA77GGBHAJA1A+AA Differential Pressure Transmitter
- Product Number：PMD55-BA21BA77GGBHAJA1A+AA
- Brand：Endress+Hauser
- Views：0
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Endress+Hauser Deltabar PMD55-BA21BA77GGBHAJA1A+AA Differential Pressure Transmitter
的详细介绍
Endress+Hauser Deltabar PMD55-BA21BA77GGBHAJA1A+AA
Differential Pressure Transmitter
The Endress+Hauser PMD55-BA21BA77GGBHAJA1A+AA is a reliable differential pressure transmitter from the Deltabar PMD55 series, featuring a piezoresistive sensor with a welded metallic membrane. It is designed for continuous measurement of pressure differences in liquids, vapors, and gases across process and environmental applications .
This device is ideal for level, volume, or mass measurement in liquids, differential pressure monitoring (e.g., of filters and pumps), and flow measurement in conjunction with primary elements .
Order Code Interpretation: PMD55-BA21BA77GGBHAJA1A+AA
Based on Endress+Hauser's ordering structure for the Deltabar PMD55 series:
| Position | Code | Interpretation |
|---|---|---|
| Approval | B | ATEX/IECEx hazardous area approval (Ex ia IIC T4) |
| Power Supply; Output | A2 | 4-20 mA HART, 2-wire |
| Housing | 1B | Aluminum housing, IP66/IP67, NEMA 4X |
| Sensor Range | A7 | Measuring cell: 10 mbar...40 bar (0.15...580 psi) |
| Process Connection | 7G | Thread 1/4-18 NPT, 316L stainless steel |
| Calibration Unit | G | Calibration in mbar/bar |
| Additional Options | BHAJA1A+AA | Custom hardware/software configuration |
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Endress+Hauser |
| Product Series | Deltabar PMD55 |
| Measuring Principle | Differential pressure, piezoresistive sensor with welded metallic membrane |
| Pressure Measuring Range | 10 mbar to 40 bar (0.15 to 580 psi) |
| Reference Accuracy | Standard: ±0.1%; Platinum: up to ±0.075% (optional) |
| Long-term Stability | 0.05% of URL/year, 0.13% of URL/5 years |
| Turn Down | Up to 20:1 |
| Smallest Calibratable Span | 10 mbar (0.15 psi) |
| Max. Overpressure Limit | 160 bar (2300 psi) on one side |
| Process Temperature | -40°C to +85°C (-40°F to +185°F) |
| Ambient Temperature | -40°C to +85°C (-40°F to +185°F) |
| Output Signal | 4-20 mA HART (2-wire) |
| Supply Voltage (Non-Ex) | 11.5 to 45 V DC |
| Supply Voltage (Ex ia) | 11.5 to 30 V DC |
| Main Wetted Parts | 316L stainless steel |
| Process Membrane Material | 316L, AlloyC |
| Material Gasket | Viton, PTFE, EPDM, NBR |
| Fill Fluid | Silicone oil, inert oil |
| Housing Material | Die-cast aluminum, epoxy coated |
| Ingress Protection | IP66/IP67, NEMA 4X |
| Display | Optional 4-line digital display |
| Certifications | ATEX, FM, CSA, IECEx, NEPSI, NACE, SIL2 |
Applications
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Flow Measurement: Volume or mass flow measurement in conjunction with primary elements (orifice plates, pitot tubes) in gases, vapors, and liquids .
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Level Measurement: Level, volume, or mass measurement in liquids in tanks and vessels .
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Differential Pressure Monitoring: Monitoring of filters, pumps, and other equipment .
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Utilities Applications: Compressed air, steam, water generation and distribution systems, heating and cooling systems .
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Hazardous Areas: ATEX/IECEx certified for use in explosive environments .
Deltabar PMD55-BA21BA77GGBHAJA1A+AA
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Proven Reliability: ±0.1% standard accuracy with excellent long-term stability of 0.05% of URL/year .
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Process Safety: SIL2 certification ensures reliable operation in safety instrumented systems .
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Easy Commissioning: Menu-guided configuration via local display or HART communicator reduces setup time .
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Compact & Modular: Space-saving design with modular electronics for easy maintenance .
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Global Acceptance: Wide range of international approvals including ATEX, FM, CSA, and NACE .
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Cost-Effective: Excellent price-performance ratio for demanding process applications .
Q&A
Q1: What is the accuracy of the Deltabar PMD55-BA21BA77GGBHAJA1A+AA?
A: The Deltabar PMD55 offers a standard reference accuracy of ±0.1%. An optional "Platinum" version with up to ±0.075% accuracy is available for applications requiring higher precision . The device also features excellent long-term stability of 0.05% of URL per year .
Q2: Is the PMD55 suitable for use in safety instrumented systems?
A: Yes. The Deltabar PMD55 is SIL2 certified according to IEC 61508 / IEC 61511, making it suitable for use in safety instrumented systems for critical applications such as overfill prevention and emergency shutdown .
Q3: What communication protocols does this version support?
A: The PMD55-BA21BA77GGBHAJA1A+AA with "A2" output code supports 4-20 mA HART communication . The Deltabar PMD55 series also offers options for PROFIBUS PA and FOUNDATION Fieldbus protocols for flexible system integration .
