Premium Ceramic Sensor Technology
Oil-free ceramic pressure transmitters for absolute and gauge pressure measurement with exceptional long-term stability and universal chemical resistance
Standard ceramic pressure transmitter for universal applications
Advanced ceramic pressure transmitter with Heartbeat Technology
Ceramic pressure technology excels in demanding environments
Universal chemical resistance without expensive exotic materials or diaphragm seals
Oil-free design eliminates contamination risk in sterile processes
Hygienic design with CIP/SIP compatibility and FDA-approved materials
No hydrogen permeation issues common with oil-filled sensors
Choose the right ceramic transmitter for your application
| Feature | PMC71 Standard | PMC72 Advanced |
|---|---|---|
| Accuracy | ±0.075% | ±0.075% |
| Heartbeat Technology | No | Yes |
| Diagnostics | Basic | Advanced with predictive maintenance |
| Safety Rating | SIL 2 | SIL 2/3 |
| HistoROM | No | Yes |
| Verification | Manual | Continuous automatic |
| Communication | 4-20mA HART | HART, PROFIBUS PA, FF |
Why choose ceramic pressure measurement technology
Common questions about ceramic pressure transmitters
Ceramic pressure sensors offer several advantages: they're oil-free (no risk of oil leaks or hydrogen permeation), provide exceptional long-term stability (±0.1% over 5 years), resist aggressive chemicals without additional diaphragm seals, and eliminate temperature-induced oil expansion errors. The Cerabar PMC7x series uses 99.9% pure Al2O3 ceramic that's inherently corrosion-resistant.
The Cerabar PMC7x series achieves ±0.075% accuracy of calibrated span, with long-term stability of ±0.1% over 5 years. Temperature compensation ensures ±0.1% per 10°C stability. These specifications exceed requirements for most process control applications and qualify for SIL 2/3 safety systems.
Cerabar PMC7x ceramic sensors measure from 0.4 mbar (ultra-low pressure) up to 400 bar high pressure. This exceptional turndown ratio (1000:1) means a single transmitter can handle multiple applications. Different sensor sizes optimize for specific ranges while maintaining the ceramic advantages.
Yes, ceramic pressure transmitters excel in vacuum applications. The oil-free design eliminates outgassing concerns common with oil-filled sensors. Cerabar PMC7x handles full vacuum to positive pressure without range changes. Absolute pressure versions measure true vacuum referenced to zero absolute pressure.
Heartbeat Technology provides continuous online verification without process interruption. It performs automated diagnostics checking sensor condition, electronics functionality, and configuration integrity. The technology generates traceable verification reports for compliance and enables predictive maintenance.
Ceramic sensors are ideal for hydrogen service because the solid ceramic structure prevents hydrogen permeation that causes drift in oil-filled sensors. No gold plating required unlike metal diaphragms. The PMC7x series maintains stability in hydrogen environments without special modifications.
Chemical processing benefits from ceramic's universal chemical resistance. Pharmaceutical and food industries value the oil-free, contamination-free design. Semiconductor manufacturing requires the ultra-pure, particle-free measurement. Water treatment appreciates the long-term stability in chlorine exposure.
Due to exceptional stability, ceramic sensors typically require calibration every 2-5 years versus annual for conventional transmitters. The PMC72 with Heartbeat Technology can extend intervals further through continuous verification. Many users report 5+ years without measurable drift.