Radar (FMCW) level transmitter for liquids in the marine industry

  • Continuous, non-contact cargo level measurement of liquids
  • 24 GHz radar, Horn or Drop antennas
  • Measuring range: 1…40 m / 3.3…131 ft (liquids)
  • -40…+200°C / +390°F; -1…40 barg / -14.5…580 psig

OPTIWAVE 8300 Marine C – Version with Horn antenna and ball valve

Radar (FMCW) level transmitter OPTIWAVE 8300 Marine C – Version with Horn antenna and ball valve
The OPTIWAVE 8300 Marine is a 2-wire 24 GHz radar (FMCW) level transmitter for non-contact level measurement in liquid cargo applications. The radar is a highly accurate and reliable instrument for measuring liquids, pastes and slurries. With its heavy-duty stainless steel housing, the level transmitter is designed to withstand the roughest weather conditions on ships.

Product highlights

  • Rugged stainless steel (1.4404 / 316L) housing and display protection
  • Accuracy: ±2 mm / 0.1" uncertainty
  • Drop antenna for applications with heavy condensation
  • Metallic Horn antenna for high temperatures
  • Built-in purging system (metallic Horn antenna)
  • Quick coupling system: converter is rotatable and removable under process conditions
  • Integrated pressure transmitter
  • Marine approvals: DNV, GL, BV, RINA, ABS, LR, NK
  • Weather protection lid for display and keypad
  • Keypad accessible without opening the housing cover
  • Closed tank cleaning connection for service of all internal components

Typical applications

  • Marine and offshore applications
  • Level measurement in liquid cargo tanks containing hydrocarbons, chemical solutions etc.
  • Redundant ullage indications

Related products

Technical data

Product type Level transmitter
Measurement principles Radar
Level measurement type Continuous measurement
Measured media Liquids, Pastes, Solids, Granulates, Powders, Slurries, Bulk solids
Contact to measured medium No
Interface measurement No
Measuring range (liquids) 0.2…40 m/
0.7…131 ft
Measuring range (solids) 0.2…80 m/
0.7…263 ft
Process pressure (relative) -1…40 barg/
-14.5…580 psig
Process temperature -40…200°C/
Wetted parts Molybdenum (Mo) 3%, Austenitic stainless steel (1.4404/316L)
Process seals EPDM, FKM/FPM, PFA, Kalrez® 6375
Accuracy (liquids) ±2 mm/
±0.08 in
Accuracy (solids) ±3 mm/
±0.12 in


Certificates/Approvals Ex ATEX
Certificates/Approvals Marine DNV, LR, NK, BV, ABS, GL, CCS, RINA, KR
Ingress protection IP66/67, NEMA4X/6P


Digital outputs HART®
Analogue outputs Current (mA)

Process connections

Flange connections EN (1092-1): DN125
ASME (B 16.5): 5"

Download Center

  • Technical datasheets and handbooks
  • Flyers and brochures
  • Certificates and approvals
  • Software and driver
View OPTIWAVE 8300 Marine related downloads