The OPTIWAVE-M 7500 is a highly accurate and reliable 2-wire 80 GHz radar (FMCW) level transmitter for measuring ullage. Equipped with a heavy-duty stainless steel housing, this marine level radar is designed to withstand the roughest conditions on deck. Due to its flush-mounted PEEK Lens antenna with a very small beam angle, this FMCW radar is the optimal choice for continuous, non-contact level measurement involving narrow small or high tanks with internal obstructions. Insensitive to deposits or corrosive environments, this marine level transmitter is equally suited for oil or other liquids, slurries and pastes as well as solids.
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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 7500 level transmitter is part of the CARGOMASTER® solution for onboard tank monitoring and alarm. It holds IEC (Ex ia IIC) intrinsic safety certification as well as approvals of all major marine classification societies.
Product highlights
- 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
- Flush-mounted PEEK Lens antenna (no tank intrusion):
- DN70 / 2¾″ with extremely focussed beam angle of only 4° for use in narrow tanks
- DN40 / 1½″ with narrow beam angle of 8° for small to large tanks
- Accuracy: ±2 mm / 0.08″
- Optimised 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
- Cargo level measurement on large oil and product tankers
- Redundant ullage indication on ships
- Level measurement as part of a complete solution for liquid cargo monitoring and alarm (CARGOMASTER)
Technical data
Measurement principles | Radar |
Level measurement type | Continuous measurement |
Measured media | Liquids, Pastes, Slurries, Solids |
Contact to measured medium | No |
Interface measurement | No |
Measuring range (liquids) | 0…40 m/ 0…132 ft |
Measuring range (solids) | 0…40 m/ 0…132 ft |
Process temperature |
-40…+150°C/ optional: |
Ambient temperature | -40…+70°C/ -40…+160°F |
Wetted parts | Polyetheretherketone (PEEK) |
Process seals | Fluorocarbon-based synthetic rubber (FKM/FPM), Kalrez® 6375 |
Accuracy (liquids) | ±2 mm/ ±0.08 in |
Accuracy (solids) | ±2 mm/ ±0.08 in |
Approvals/Standards
Certificates/Approvals Ex | ATEX, IECEx |
Certificates/Approvals Marine | ABS, BV, CCS, DNV, GL, KR, LR, NK, RINA |
Ingress protection | IP66/67 |
Communication
Digital outputs | HART® |
Analogue outputs | 4…20 mA |