E+H FMP55 Interface Procurement Guide
E+H FMP55 Interface Procurement Guide
Endress+Hauser Levelflex FMP55 is a multiparameter interface instrument combining guided radar and capacitance measurement. When purchasing FMP55-BAACBACAATK +AAEHF4I7JBJDOEPBZ1 CA=2750MM, treat the full order code and 2750 mm configured length as one engineered package: probe construction, interface conditions, process connection, wetted materials, temperature, pressure, communication, approvals and documentation all require confirmation.
Order code: FMP55-BAACBACAATK +AAEHF4I7JBJDOEPBZ1 CA=2750MM
Measurement: simultaneous overall level and liquid/liquid interface measurement, including applications with emulsion layers
Buying priority: exact 2750 mm configuration, interface and emulsion data, delivery control and engineered replacement
Where FMP55 fits best
Endress+Hauser positions the FMP55 Multiparameter for interface measurement in oil and gas, chemical and petrochemical processes. SensorFusion combines capacitance and guided-radar principles so the device can acquire overall level and interface signals simultaneously, including challenging emulsion layers.
Published family specifications list ±2 mm accuracy for rod, rope and coaxial probes, process temperature up to +200 °C and pressure from vacuum to 40 bar. Maximum measuring distance depends on probe type: up to 4 m for rod probes, 10 m for rope probes and 6 m for coaxial probes. These are family limits—not proof that every option is included in the quoted order code.
Procurement decision checklist
- Define both liquids: product names, dielectric constants, conductivities, densities, temperature range and chemical compatibility.
- Describe the interface: normal interface position, emulsion thickness, phase changes, foam, turbulence, coating and expected total-level range.
- Lock the 2750 mm configuration: verify the meaning of CA, probe type, active length, reference point, insertion depth, nozzle geometry and bottom clearance.
- Match the mechanics: process connection, seal concept, wetted materials, pressure rating and installation clearance must suit the vessel.
- Confirm integration: power, 4–20 mA HART, PROFIBUS PA or FOUNDATION Fieldbus, housing, cable entry, display, hazardous-area and SIL requirements.
- Approve the exact code: release FMP55-BAACBACAATK +AAEHF4I7JBJDOEPBZ1 CA=2750MM only after the complete configured datasheet matches the approved purchase specification.
Lead-time management for interface projects
The 2750 mm probe configuration, flange or thread, wetted materials, electronics, protocol, approvals, inspection and material certificates can each affect production time. Request written availability against the complete FMP55 order code.
Freeze the process and interface data early, allow time for technical review and reserve schedule for factory release, logistics, customs, installation and tuning. If delivery risk appears, compare only approved alternatives; do not change probe construction, length, material, connection, electronics or approvals merely to shorten lead time without written engineering acceptance.
Replacing an old or discontinued interface instrument
Begin with the installed nameplate, full order code and serial number. Record the probe, connection, vessel geometry, both liquid properties, emulsion behavior, temperature and pressure, approvals, output, DCS scaling, parameters and alarm logic before choosing a successor.
- Confirm lifecycle status and collect the original datasheet, drawings, certificates and parameter backup.
- Compare interface principle, overall-level duty, probe geometry, mechanical fit, electrical interface and approvals line by line.
- Check whether the replacement can handle the real emulsion layer and changing media—not only a clean laboratory interface.
- Plan installation, parameter migration, empty/full reference checks, loop tests, interface verification and alarm testing.
- Retain the old device and rollback plan until both total level and interface signals pass process acceptance.
Important: FMP51, FMP54, FMP55 and other Levelflex variants are not automatically interchangeable. Guided radar alone does not guarantee the same multiparameter interface capability, probe construction, materials, connection, approvals or communication.
E+H Level Instruments in Demand
The following configured models are currently receiving strong purchasing interest. Availability and replacement suitability should be checked against the complete code:
