Krohne OPTIWAVE-M 7500 Radar (FMCW) Level Transmitter

Made in Japan
Manufacturer: KROHNE Japan KK
Model: OPTIWAVE-M 7500

Features

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
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
Accuracy: ±2 mm / 0.08″
Optimised for use with the CARGOMASTER^® solution for liquid cargo monitoring and alarm

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)

General Information
Product type	Level transmitter
Product family name	OPTIWAVE
Product positioning	For liquids and solids in the marine industry
Measurement variables	Distance, Level, Mass, Reflection, Volume
Measurement principle	Radar
Level measurement type	Continuous measurement
Contact to measured medium	No
Interface measurement	No
Measured media	Liquids, Slurries, Pastes, Solids
Measuring range (liquids)	0…40 m / 0…132 ft
Measuring range (solids)	0…40 m / 0…132 ft
Ambient temperature	-40…+70°C / -40…+160°F
Measuring point	Pressurised tank, Open tank, Silo, Bunker
Operating conditions
Process temperature	-40…+150°C / -58…+302°F optional: -60…+250°C / -75…+480°F
Materials
Gaskets	Fluoroelastomer rubber (FKM/FPM), Kalrez® 6375
Wetted parts	Polyetheretherketone (PEEK)
Process connections
Flange connections	EN (1092-1): DN125
Approvals/Standards
Ingress protection	IP66/67
Certificates/Approvals Ex	ATEX, IECEx
Certificates/Approvals Marine	ABS, BV, CCS, DNV, GL, KR, LR, NK, RINA
Communication
Analogue outputs	4…20 mA
Digital outputs	HART^®
Accuracy
Accuracy (liquids)	±2 mm / ±0.08 in
Accuracy (solids)	±2 mm / ±0.08 in