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The OPTIWAVE 6500 is a 2-wire 80 GHz radar (FMCW) level transmitter for demanding applications with powders in very dusty atmospheres. With its small beam angle, this radar is particularly suited for continuous, non-contact level measurement in high and narrow silos, hoppers or buffer storage containers up to 100 m / 328 ft. Due to specific algorithms and the high signal dynamics of the FMCW radar, the level transmitter is ideal for low-reflective media, dust, uneven surfaces or silos with internal obstructions. As it features flush-mounted PEEK and PTFE Lens antennas, there is no intrusion into the tank.

Highlights:

• 2-wire, loop-powered, with HART®7

• High dynamics for clear vision despite dusty atmospheres or low reflective media

• Empty tank spectrum function eliminates false reflections caused by tank internals

• Flush-mounted PEEK or PTFE Lens antennas (no tank intrusion):DN70 / 2¾″ with 4° beam angle for distances up to 100 m / 328 ft

• 112 mm / 4.4" antenna extension for long nozzles

• Unaffected by angle of repose

• Purging system for antenna cleaning

• TBM (Tank Bottom Management) ensures reliable measurement even in empty tanks:

1. Dedicated algorithms to filter and compensate for irregular radar wave reflections that occur at tank bottom when the vessel is empty

2. Allows for quick and easy commissioning of tanks regardless of their size, material or geometry

• ±2 mm / ±0.08″ accuracy

• Large choice of flange and thread connections

• Low-cost 316L low-pressure flange discs

• Large, backlit LCD screen with 4-button keypad for operation with bar magnet; no need to open the housing cover

• PACTware™, HART® DD and DTM provided free of charge with full functionality

• Extensive device diagnostics acc. to NAMUR NE 107

• SIL 2/3 certified for safety-related applications

• 3-year warranty

Applications:

General

• Level measurement in high and narrow silos with internal obstructions, buffer silos, bulk storage containers, hoppers

• Processes with fast changing levels (≤60 m/min / 196.85 ft/min)

Minerals and mining industry

• Fine powders (e.g. building materials)

• Sand

• Cement

• Gypsum

• Lime

• Filler

• Fly ash

• Coal dust

Chemical industry

• Plastic powder

• Silica

• Soap powder

Food and beverage industry

• Milk powder

• Coffee powder

• Chocolate powder

• Flour

• Starch

• Salt, sugar

Power industry, iron, steel and metal industry

• Coke and coal dust

Pulp and paper industry

• Saw dust