Critical Technical Advantages
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Extreme Temperature Versatility: Utilizing a variety of fill fluids and diaphragm seal designs, the PMP55 can handle process temperatures from cryogenic levels (-70°C) up to intense heat (+400°C). This protects the transmitter electronics from thermal damage while maintaining measurement integrity.
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Innovative TempC Membrane: The PMP55 can be equipped with the patented TempC Membrane. This technology drastically minimizes measurement errors caused by ambient and process temperature fluctuations, offering much faster recovery times and higher accuracy compared to conventional diaphragms.
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High-Pressure Durability: Designed for heavy-duty service, the PMP55 supports measuring ranges up to 400 bar (6,000 psi). The metallic diaphragm provides the necessary mechanical strength to withstand high-pressure spikes and challenging process cycles.
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Broad Material Compatibility: To handle aggressive or corrosive media, the diaphragm seals are available in a large variety of materials beyond standard 316L stainless steel, including Alloy C276, Tantalum, and Monel.
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Safety and System Integrity: The device is certified to SIL2 (IEC 61508 / IEC 61511), ensuring it meets the rigorous standards required for safety instrumented systems. It also carries a wide range of international explosion protection and hygienic approvals.
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Modular and User-Friendly: The transmitter follows a modular concept, allowing for the easy exchange of the display or electronics module. Commissioning is simplified through menu-guided operation on the local display or via digital protocols like HART, PROFIBUS PA, and FOUNDATION Fieldbus.
Technical Performance Matrix
| Feature | 세부 정보 |
| Measuring Principle | Piezoresistive with Diaphragm Seal |
| Measurement Type | Absolute or Gauge Pressure |
| Accuracy | ±0.15% (Standard) / ±0.075% (Platinum) |
| Measuring Range | -1/0 to +400 bar (-15/0 to +6,000 psi) |
| Process Temperature | -70 to +400°C (-94 to +752°F) |
| Safety Rating | SIL2 / IEC 61508 |
| Housing Material | Aluminum or 316L Stainless Steel |
Primary Applications
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Refining and Petrochemical: Measuring the pressure of hot bitumen, heavy crude, or refined products in high-temperature distillation units.
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Chemical Processing: Handling highly corrosive acids or bases using specialized diaphragm materials like Tantalum or Gold coating.
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Food and Life Sciences: Level and pressure measurement in hygienic tanks that undergo high-temperature SIP sterilization or contain viscous ingredients.
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Oil & Gas Production: Monitoring high-pressure separators and pipelines where the process media is at extreme temperatures.
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Power Generation: Measuring steam pressure and boiler feed water in utility circuits.
