Key Specifications
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Accuracy
Rod probe: ±2 mm (0.08 in)
Cable probe ≤15 m (49 ft): ±2 mm (0.08 in)
Cable probe >15 m (49 ft): ±10 mm (0.39 in)
Coaxial probe: ±2 mm (0.08 in) -
Operating Temperature
-50…+200 °C
(-58…+392 °F) -
Operating Pressure / Maximum Overpressure Limit
Vacuum…40 bar
(Vacuum…580 psi) -
Maximum Measuring Range
Rod: 10 m (33 ft) Min DK>1.6
Cable: 25-30 m (82-98 ft) Min DK>1.6;
30-45 m (98-148 ft) Min DK>1.9
Coaxial probe: 6 m (20 ft) Min DK>1.4 -
Primary Contact Materials
Rod probe:
316L, Alloy C, Ceramic
Cable probe:
316, 316L, Alloy C, Ceramic
Coaxial probe:
316L, Alloy C, Ceramic, PFA
Application Area
The Levelflex FMP51 is designed for level measurement in extreme conditions, including high temperatures and pressures in industrial processes. It delivers reliable measurements even with surface turbulence, foam, or multiple tank baffles. Suitable for continuous level monitoring of liquids, pastes, and slurries, as well as interface detection. Measurements remain unaffected by medium variations, temperature fluctuations, gas blankets, or vapors.
Available with rod, cable, or coaxial probe configurations.
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Connection types: Threaded or flanged
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Temperature range: -50 to +200°C (-58 to +392°F)
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Pressure range: -1 to +40 bar (-14.5 to +580 psi)
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Maximum measuring range: Rod 10m (33ft), Cable 45m (148ft), Coaxial 6m (20ft)
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Accuracy: ±2mm (0.08″)
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International explosion protection certifications, WHG overfill protection, SIL, marine approval, 5-point linearity protocol
Advantages
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Consistent measurements despite changing process and product conditions
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HistoROM data management concept for quick commissioning, maintenance, and diagnostics
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Maximum reliability through Multi-Echo Tracking technology
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Hardware and software developed in compliance with IEC 61508 up to SIL3
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Heartbeat Technology for cost-effective and safe operation throughout the product lifecycle
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Seamless integration with control or asset monitoring systems through intuitive menus (local or via control system)
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World’s simplest verification test for SIL and WHG, saving time and costs
