Deltabar PMD55 – Differential Pressure Transmitter for Flow
The Endress+Hauser Deltabar PMD55 is a high-performance differential pressure transmitter specifically designed for flow measurement applications using primary elements such as orifice plates, venturi tubes, and pitot tubes.
Key Features
- DP measuring range: 1 mbar to 100 bar
- Accuracy: ±0.1% of span
- Turn-down ratio: 100:1
- Integrated flow calculation (square root extraction)
- Process temperature: –40 to +120°C
- Static pressure: Up to 420 bar
- Communication: 4–20 mA HART, PROFIBUS PA, Foundation Fieldbus
- SIL 2 capable
Applications
- Orifice plate flow measurement
- Venturi and nozzle flow measurement
- Pitot tube flow measurement
- Steam and gas flow metering
Technical Specifications
| Parameter | Specification |
|---|---|
| DP measuring range | 1 mbar–100 bar |
| Accuracy | ±0.1% of span |
| Turn-down ratio | 100:1 |
| Process temperature | –40 to +120°C |
| Static pressure | Up to 420 bar |
| Wetted materials | 316L SS, Hastelloy C-276, Tantalum, Gold |
| Protection class | IP66/IP67/IP68 |
| Communication | 4–20 mA HART, PROFIBUS PA, Foundation Fieldbus |
| SIL | SIL 2 (IEC 61508) |
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