Electronic Differential Pressure
Deltabar FMD71
High-purity Ceramic Sensor System for Reliable Level Measurement
Goodbye Capillary Issues
Traditional DP systems with oil-filled capillaries often suffer from temperature drift and leaks. The Deltabar FMD71 uses a dual-sensor electronic architecture to eliminate these problems, ensuring maximum process safety and zero temperature-induced errors.
Technical Specifications
| System Accuracy |
Standard ±0.07% | Platinum ±0.05% |
| Sensor Material |
Ceraphire® Ceramic (99.9% Al2O3) - Abrasion & Corrosion Resistant |
| Process Temperature |
–25°C to +150°C (–13°F to +302°F) |
| Vacuum Resistance |
Down to 0 mbar (Full Vacuum Resistant) |
| Max Overpressure |
Up to 60 bar (900 psi) |
| Communication |
4...20 mA HART Multivariable (Head Pressure + Level + Temp) |
Key System Benefits
Ultimate Reliability Eliminates mechanical impulse lines. No freezing, no clogging, no leaking.
Ceramic Toughness Ceramic cells handle extreme vacuum and abrasive media better than any metal membrane.
Reduced TCO Fast installation and minimal maintenance requirements significantly lower the Total Cost of Ownership.
Smart Diagnostics Continuous health monitoring via HART ensures the entire system is performing optimally 24/7.
Frequently Asked Questions
Q: Why use Electronic DP for distillation columns? A: Vacuum conditions in distillation columns can cause metal membranes to "buckle." The ceramic sensors in the FMD71 are rigid and immune to vacuum damage. Q: Can I monitor pressure and level at the same time? A: Yes, the FMD71 provides multivariable data including differential pressure, head pressure, and sensor temperatures via one HART signal. Q: What is the benefit of Ceraphire® sensors? A: It is an ultra-pure (99.9%) ceramic that is second only to diamond in hardness, providing superior long-term stability and chemical resistance.
