OPTIWAVE 6500

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.

The OPTIWAVE 6500 provides accurate and reliable readings in process conditions with temperatures up to +200°C / +392°F and pressures up to 40 barg / 580 psig. It offers flange or thread connections as well as an optional 112 mm / 4.4" antenna extension for the DN40 / 1.5″ antenna. Approvals for use in hazardous areas are also available. It comes with extensive device diagnostics (acc. to NE 107) and HART®7 communication.

Features & Options

• 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:
  • 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
• ±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

Typical 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
• Coke and coal dust

Pulp and paper industry

• Saw dust