Levelflex FMP51 guided wave radar level transmitter for extreme high temperature & pressure conditions. Supports level & interface measurement, certified SIL3, WHG, explosion proof & marine.
Levelflex FMP51 is a high‑precision guided wave radar level transmitter designed for extreme process conditions with high temperature and high pressure.
It provides stable continuous level measurement and liquid‑liquid interface measurement for liquids, slurries and mud, unaffected by level fluctuations, foam, medium changes, temperature, steam or internal obstacles.
Equipped with HistoROM data storage, multi‑echo tracking, Heartbeat Technology and SIL3 safety rating, it supports Bluetooth and SmartBlue App for easy commissioning and seamless integration into control systems. Widely used in chemical, petrochemical, oil & gas, marine and other demanding industries.
Measuring Principle
Guided Wave Radar
Measuring Mode
Continuous level measurement
Liquid‑liquid interface measurement
Accuracy
Rod probe: ±2 mm
Cable probe ≤15 m: ±2 mm
Cable probe ＞15 m: ±10 mm
Coaxial probe: ±2 mm
Process Temperature
-50 … +200 °C
Ambient Temperature
-50 … +80 °C
Process Pressure
Vacuum … 40 bar
Probe Types
Rod, Cable, Coaxial
Max Measuring Length
Rod: 10 m
Cable: 45 m
Coaxial: 6 m
Min. Dielectric Constant
Rod: DK＞1.6
Cable ≤30 m: DK＞1.6
Cable 30–45 m: DK＞1.9
Coaxial: DK＞1.4
Wetted Parts
316L, Alloy C, Ceramic, PFA (depending on probe)
Process Connections
Thread: G 3/4"…1 1/2", MNPT
Flange: ASME / DN / JIS
Output / Communication
4…20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus
Certifications
Ex: ATEX, FM, CSA, IECEx, NEPSI, EAC
Safety: WHG, SIL3
Design: EN 10204‑3.1, NACE, ASME, AD2000
Marine: GL, ABS, LR, BV, DNV
