OPTIWAVE-M 7400

The OPTIWAVE-M 7400 C is a 2-wire 24 GHz radar (FMCW) level transmitter for non-contact cargo level measurement. This marine level radar is a highly accurate and reliable instrument for ullage indication. Equipped with heavy-duty stainless steel housing, it is designed to withstand the roughest conditions on ships. If necessary, the signal converter of the level transmitter can be replaced during cargo operations. The Drop antenna option makes it ideal for measuring sticky/contaminating liquids or dust-laden atmospheres where product build-up is likely to occur.

The extremely rugged cargo radar features a backup display for redundant indication. Cargo operations may continue with a man on deck, if level information is lost on the main monitoring station. The OPTIWAVE-M 7400 level transmitter is the perfect fit for applications with the CARGOMASTER® solution for onboard tank monitoring and alarm. It holds IEC (Ex IIC) intrinsic safety certification as well as approvals of all major marine classification societies.

Features & Options

• Cargo radar level gauge designed to operate in the roughest marine conditions
• With rugged stainless steel (1.4404 / 316L) housing and display protection
• Redundant display: ullage/level will always be shown locally
• Inert gas pressure sensor (IGP) integral part of radar flange
• Antennas:
  • Horn antenna (DN100 / 4"): Stainless steel (1.4404 / 316L) or higher Molybdenum (on request)
  • Drop antenna (DN80 /3" or DN100 /4"): PP or PTFE
• Horn antenna option comes with built-in antenna purging system for cleaning without opening the tank
  • TBM (Tank Bottom Management) ensures reliable measurement even in empty tanks:
  • dedicated algorithms to filter and compensate for irregular radar wave reflections that occur at tank bottom when the vessel is empty
• allows for quick and easy commissioning of tanks regardless of their size, material or geometry
• Replacement of the signal converter can be done at any time, even during cargo operations without opening the tank
• Accuracy: ±2 mm / 0.1" uncertainty
• Optimized for use with the CARGOMASTER solution for liquid cargo monitoring and alarm

Typical applications

• Marine industry
• Marine and offshore level applications with liquids and solids
• Level monitoring in liquid cargo tanks containing hydrocarbons, chemical solutions etc.
• Redundant ullage indication on ships
• Level measurement as part of a complete solution for liquid cargo monitoring and alarm (CARGOMASTER)