Radar (FMCW) level transmitter for liquids in storage and process applications

  • Continuous, non-contact level measurement in storage and process tanks
  • 10 GHz radar, Horn and Wave Horn antennas
  • Measuring range: 0…30 m / 98 ft
  • -60…+250°C / -76…+482°F; -1…40 barg / -14.5…580 psig (higher on request)
  • Icon/Logo Security Integrity Level 2 (SIL 2)

OPTIWAVE 5200 with PP Wave Horn antenna and PP thread protection

OPTIWAVE 5200 C –  10 GHz radar (FMCW) level transmitter for aggressive liquids in storage and process applications

The OPTIWAVE 5200 is a 2-wire 10 GHz radar (FMCW) level transmitter for liquids, pastes and slurries. It is particularly suited for continuous, non-contact level measurement in storage or process tanks with small process connections or where it is difficult to access the tank roof (remote version recommended).

The OPTIWAVE 5200 is SIL2-compliant according to IEC 61508-2 for Safety Instrumented Systems (SIS). Its PP or PTFE Wave Horn antenna options make it ideal for measuring the level of corrosive liquids. Additional ease of use comes from the quick coupling system which permits 360° rotation of the housing or its removal under process conditions.

Product highlights

  • PP or PTFE Wave Horn antennas (without gasket) for corrosive media
  • Metallic Horn antennas:
    • METAGLAS® second sealing barrier for toxic and dangerous liquids
    • Purging system for antenna cleaning
    • Antenna extensions up to 1 m / 3.28 ft
    • Bent antenna extensions for tanks with internal obstructions
    • Heating / cooling systems prevent crystallization or build-up
  • Metallic Wave Guide antenna for clean liquids
  • Quick coupling system: converter is rotatable and removable under process conditions
  • Converter compatible with all BM 70x process connections
  • Horizontal or vertical housing position
  • Remote converter up to 100 m / 328 ft away from the antenna
  • 2-wire: 4…20 mA/HART®6, PROFIBUS PA, FOUNDATION™ Fieldbus
  • ±5 mm / ±0.2” accuracy
  • Keypad accessible without opening the housing cover
  • PACTware™, HART® DD and DTM provided free of charge with full functionality
  • SIL2 certified

Typical applications


  • Level measurement in storage and process tanks:
    • with difficult access to the tank roof (remote version)
    • where readings are eased by horizontal or vertical housing positions
    • in hazardous areas with temperatures up to +250°C / +482°F
    • where FOUNDATIONTM fieldbus or PROFIBUS PA communication is required
  • Standard applications or applications with corrosive products where a cost-effective solution is required
  • Converter replacement in applications using the previous KROHNE BM 70x generation of level transmitters (e.g. BM 702 A)

Chemical industry

  • Fertilizers, solvents, alcohols, bases, acids, ferric chloride

Power industry

  • Condensates, cooling water

Oil and gas industry

  • Hydrocarbons

Water and wastewater industry

  • Flocculent, sludge

Accessories for this product

Wall-mounted bracket

Wall-mounted bracket

Antenna aiming kit for OPTIWAVE level transmitters

  • L-shaped bracket to attach radar level transmitters firmly to a wall
  • Only suitable for radars with G1 or G1½ process connection
  • Material: Stainless steel (1.4404 / 316L)
  • Bracket length: 250mm / 9.84”


General information

Measurement principleRadar
Level measurement typeContinuous measurement
Measured mediaLiquids, Pastes, Slurries
Contact to measured mediumNo
Interface measurementNo
Measuring range (liquids)1…30 m/
3.3…98 ft
Process pressure-1…40 barg/
-14.5…580 psig
Process temperature-60…+250°C/
Wetted partsAustenitic stainless steel (1.4404/316L), Polypropylene (PP), Polytetrafluoroethylene (PTFE)
GasketsEthylene propylene diene monomer (EPDM), Fluoroelastomer rubber (FKM/FPM), Kalrez® 6375, PFA
Accuracy (liquids)±5 mm/
±0.2 in


Certificates/Approvals ExATEX, cFMus, EAC Ex, IECEx, INMETRO, NEPSI
Certificates/Approvals SafetySIL 2
Certificates/Approvals OthersCRN, NACE
Ingress protectionIP66/67, NEMA4X/6P


Digital outputsFOUNDATION™ fieldbus, HART®, Profibus-PA
Analogue outputs4…20 mA

Process connections

Flange connectionsEN (1092-1): DN50…200
ASME (B 16.5): 2…8"
Thread connectionsMale:
G1½, G2
1½ NPT, 2 NPT

Related products

SU 600

Digital panel indicator for level transmitters

  • Digital indication and power supply for 4…20 mA/HART® level transmitters
  • With 2 integrated relays for pump control or other actuators
  • Wide-range power supply unit with 20…253 V AC/DC
  • Carrier rail, panel or wall mounting

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