In the world of chemical processing and mineral extraction, lining failure is the leading cause of downtime. The KROHNE OPTIFLUX 3400 overcomes this with its premier ceramic measuring tube (ZrO2 or Al2O3). Unlike conventional PTFE or PFA liners, the ceramic sensor provides extreme surface hardness and is completely vacuum resistant. It withstands rapid temperature shocks and the most abrasive suspensions, maintaining a long-term zero-point stability that makes it the industry benchmark for Master Meter applications.
Process disturbances like gas entrainment or high solid content often cause "signal jumping" in standard electromagnetic flowmeters. The OPTIFLUX 5400 features innovative Multi Phase Operation (MPO). This advanced signal processing algorithm filters out noise from entrained air or solid particles, ensuring stable and repeatable readings. This makes it the preferred choice for hydrocyclone feed lines and inorganic mass production where process consistency is critical.
| Category / Feature | Detailed Engineering Specification |
| Measurement Accuracy | ±0.15% of Measured Value (MV) ±1 mm/s |
| Repeatability | ±0.1% of MV; Minimum 1 mm/s |
| Measuring Tube Material | High-Tech Ceramic (Zirconium Oxide or Aluminium Oxide) |
| Electrode Design | Platinum or Fused in-place Cermet |
| Nominal Diameters | Flange: DN15–300 (1/2"–12"); Wafer: DN2.5–100 (1/10"–4") |
| Process Temperature | -40°C to +180°C (-40°F to +356°F) |
| Max Process Pressure | 40 bar / 580 psi (Burst pressure up to 160 bar) |
| Vacuum Resistance | 0 mbar absolute (Fully vacuum-proof) |
| Minimum Conductivity | >1 μS/cm (Ideal for low-conductive aggressive chemicals) |
| Protection Class | IP66/67 (NEMA 4/4X/6); IP68 (Remote version optional) |
| Communication | Bluetooth® 5.0, HART® 7, Modbus, Foundation Fieldbus |
| Compliance | NAMUR NE 107, NE 21, NE 43, NE 53, NE 131 |
When specifying the OPTIFLUX 5400, consider the Chemical Compatibility. While ceramic is nearly universal, certain concentrations of Hydrofluoric Acid (HF) or highly concentrated hot alkalis can affect the material. For high-vibration environments or extreme heat, we recommend the Field-mounted (5400 F) version to protect the electronics from thermal stress.
Gasket Integrity: Due to the brittle nature of ceramic, do not use hard gaskets. Use soft, high-quality elastomers and follow a strict cross-pattern torque sequence to prevent cracking the tube during flange tightening.
Virtual Reference: Leverage the Virtual Reference grounding method to eliminate the need for expensive grounding rings in non-conductive piping systems, reducing leak points and hardware costs.
With Bluetooth® integration, technicians can now conduct a Wireless On-site Verification using the [KROHNE OPTICHECK Flow Mobile App]. This allows for a full health check of the magnetic field, electrodes, and electronics without opening the housing or interrupting the process. This "digital footprint" is vital for ISO quality audits and predictive maintenance schedules.
Q: Why choose ceramic over PTFE lining for abrasive slurries?
A: Ceramic (ZrO2/Al2O3) offers significantly higher surface hardness and abrasion resistance compared to PTFE. It prevents the "peeling" effect seen in soft liners when handling high-solid-content suspensions or sharp mineral particles.
Q: Is the OPTIFLUX 5400 resistant to thermal shocks?
A: Yes. The high-tech ceramic sensor used in the OPTIFLUX 5400 is specifically engineered to withstand rapid temperature changes and high thermal stress (up to +180°C), making it ideal for SIP/CIP processes in the chemical and food industries.
Q: Can I verify the meter's accuracy without removing it from the pipeline?
A: Absolutely. With integrated OPTICHECK technology and Bluetooth® connectivity, you can perform a full wireless verification using the KROHNE OPTICHECK Flow Mobile App to generate a health report without process interruption.
Q: What is the benefit of the Virtual Reference grounding method?
A: Virtual Reference allows the meter to operate accurately without grounding rings, even in non-conductive piping. This reduces costs, eliminates potential leak points, and simplifies installation in corrosive chemical lines.
