Producto
E+H Cerabar PMC51 Gauge and Absolute Pressure Transmitter
PMC51
The PMC51 High-Precision Digital Pressure Transmitter is a versatile, heavy-duty instrument equipped with an advanced dry, oil-free Ceraphire® ceramic sensor for highly reliable gauge and absolute pressure measurements in liquids, gases, and vapors. Engineered to excel under demanding process conditions, vacuum environments, and aggressive media, it delivers exceptional long-term stability and reference accuracy up to ±0.075%. Featuring integrated membrane breakage detection, robust overload resistance up to 60 bar, and versatile protocol integration including 4-20mA HART, PROFIBUS PA, and FOUNDATION Fieldbus, this smart pressure transmitter provides an unbeatable combination of operational safety, reduced downtime, and seamless system integration for modern industrial automation and level monitoring applications.
The PMC51 Digital Pressure Transmitter represents a cutting-edge solution for industrial pressure, level, volume, and mass measurements, specifically optimized to handle challenging applications across process and hygienic industries. Built with a high-purity, oil-free capacitive ceramic diaphragm, the sensor completely eliminates the risk of oil contamination in sensitive fluids while offering supreme resistance against abrasive particles and highly corrosive chemical media.
Its ultra-durable Ceraphire ceramic construction ensures zero thermal creep and superior immunity to mechanical shocks and vacuum pressure down to complete vacuum. To ensure ultimate operational safety, the device incorporates self-monitoring technology with real-time ceramic membrane breakage detection, allowing immediate system notification and automatic safety shutdown in critical event scenarios.
Designed for global industrial standards, the modular transmitter platform allows easy interchangeability of electronic modules and display units without recalibration. Commissioning is exceptionally fast and efficient via a user-friendly local graphic display with intuitive menu guidance or through standard HART and bus communication interfaces. With functional safety certification up to SIL2 according to IEC 61508, the PMC51 transmitter serves as a benchmark instrument for high-reliability process automation and safety-instrumented systems.
FAQ
Q1: What are the main advantages of an oil-free ceramic sensor over a traditional metallic diaphragm sensor?
A1: An oil-free ceramic sensor eliminates any possibility of system contamination caused by fill-fluid leakage, making it extremely safe for hygienic and ultrapure chemical processes. Additionally, high-purity ceramic (99.9% Al2O3) offers vastly superior hardness, scratch resistance, chemical compatibility, and exceptional vacuum durability compared to thin metallic foils.
Q2: Can the PMC51 pressure transmitter be used for level measurement in open and closed tanks?
A2: Yes. By configuring the zero point and span according to the medium density and tank height, the PMC51 can precisely measure hydrostatic level, volume, and mass in vented or atmospheric liquid tanks.
Q3: Is this pressure transmitter suitable for applications involving vacuum or severe pressure surges?
A3: Absolutely. The Ceraphire ceramic measuring cell is 100% vacuum-proof (down to 0 mbar absolute) and features high overload resistance up to 60 bar, protecting the instrument against water hammer and sudden pressure peaks.
Q4: Do you offer OEM customization, custom process connections, and private labeling for international buyers?
A4: Yes, as a professional automation instrument manufacturer, we provide comprehensive OEM/ODM services, including customized process connection dimensions, personalized laser marking, local language packaging, and pre-configured pressure ranges tailored to your specific project requirements.
Especificaciones técnicas
| Measuring Principle | Capacitive pressure sensor with dry ceramic diaphragm (Ceraphire®) |
|---|---|
| Measurement Type | Absolute Pressure and Gauge Pressure |
| Features | Smart, reliable pressure transmitter with capacitive sensor and high-purity ceramic diaphragm (Ceraphire®) |
| Supply Voltage | 4...20mA HART: • Non-Ex: 11.5...45V DC • Ex ia: 11.5...30V DC PROFIBUS PA: • Non-Ex: 9...32 V DC FOUNDATION Fieldbus: • Non-Ex: 9...32 V DC |
| Reference Measurement Accuracy | Standard: ±0.15% Platinum: ±0.075% |
| Long-Term Stability | • < 0.1% URL / year • 0.25% URL / 5 years • 0.4% URL / 10 years |
| Process Temperature | -40...+130 °C (-40...+266 °F) 150 °C for 1 hour (302 °F for 1 hour) |
| Ambient Temperature | -40...+85 °C (-40...+185 °F) |
| Measuring Range / Sensor | 100 mbar...40 bar (1.5 psi...600 psi) Gauge/Absolute |
| Min. Calibratable Span | 10 mbar (1.45 psi) |
| Vacuum Resistance | 0 mbar abs. (Full vacuum resistant) |
| Turndown Ratio | Up to 20:1 |
| Max. Overpressure Limit | Up to 60 bar (900 psi) |
| Process Connections | Threaded: G1/2...G2, R1/2, MNPT1/2... Flanged: DN25...DN80, ASME 1"...4", JIS 10K |
| Hygienic Process Connections | Tri-Clamp, DIN11851, DIN11864-1, NEUMO, Varivent N, SMS, DRD |
| Diaphragm Material | Ceramic (Ceraphire®) |
| Gasket Material | Viton (FKM), EPDM, NBR, Kalrez (FFKM) |
| Fill Fluid | None (Dry sensor cell) |
| Housing Material | Cast Aluminum, AISI 316L Stainless Steel |
| Communication / Protocols | 4...20 mA, 4...20 mA HART, PROFIBUS PA, FOUNDATION Fieldbus |
| Certificates & Approvals | ATEX, FM, CSA, CSA C/US, IEC Ex, TIIS, INMETRO, NEPSI |
| Functional Safety | SIL |
| Design / Material Certificates | EN10204-3.1, NACE MR0175 |
| Hygienic Approvals | CoC ASME-BPE, 3-A, EHEDG |
| Marine Approvals | GL / ABS / LR / BV / DNV |
| Drinking Water Approvals | NSF |
| Successor / Replacement Product | PMC51B |
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