Critical Technical Advantages
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Unmatched Precision: The PMP71 offers a standard accuracy of ±0.05%, with the “Platinum” version reaching an elite ±0.025%. This high level of reproducibility and long-term stability is essential for accurate mass and volume calculations in high-value liquid storage.
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Highest Safety Standards (SIL 2/3): Designed according to IEC 61508, the PMP71 is suitable for use in safety instrumented systems. It features a gastight feedthrough as a secondary containment layer, protecting the electronics and environment even if the primary sensor is compromised.
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Extreme Pressure Capability: While most transmitters cap out at 400 bar, the PMP71 is built for high-pressure service up to 700 bar, making it the standard for high-pressure injection and deep-well oil and gas applications.
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HistoROM Data Management: This concept ensures maximum plant availability. All device parameters and event logs are stored on a removable memory module, allowing for “plug-and-play” replacement of electronics without the need for manual re-configuration.
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Custody Transfer Ready: With its MID Parts Certificate, the PMP71 meets the rigorous requirements for fiscal measurement and legal metrology in commercial transactions involving liquids or gases.
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Robust Dual-Chamber Housing: The two-chamber design separates the terminal compartment from the electronics, providing superior protection against moisture and corrosive atmospheres during field wiring.
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Intelligent Diagnostics: The device is function-monitored from the measuring cell all the way to the electronics, ensuring that any internal anomalies are detected before they impact process safety.
Technical Performance Matrix
| Feature | Details |
| Measuring Principle | Piezoresistive (Metallic diaphragm) |
| Measurement Type | Absolute or Gauge Pressure |
| Accuracy | ±0.05% (Standard) / ±0.025% (Platinum) |
| Measuring Range | -1/0 up to 700 bar (-15/0 to +10,500 psi) |
| Process Temperature | -40 to +125°C (-40 to +257°F) |
| Safety Rating | SIL 2/3 (IEC 61508) |
| Housing Material | Aluminum or 316L Stainless Steel |
Primary Applications
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Custody Transfer: Precise pressure and level measurement for the commercial exchange of fuels, chemicals, and industrial gases.
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High-Pressure Injection: Monitoring chemical injection or water flooding in oil and gas production up to 700 bar.
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Overfill Prevention (WHG): Serving as the primary safety sensor for hazardous liquid storage tanks.
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Safety Instrumented Systems (SIS): Critical pressure monitoring in chemical reactors where SIL 2 or SIL 3 reliability is mandated.
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Marine and Offshore: Monitoring fuel and cargo tanks on ships and offshore platforms where marine certification and extreme durability are required.
