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OPTIWAVEModel 6500 -2-Wire 80 Ghz Radar (FMCW) Level Transmitter for Powders and Dusty Atmosphere

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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.

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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.

Radar (FMCW) level transmitter for powders and dusty atmosphere
  • Continuous, non-contact level measurement in high and narrow silos, hoppers or containers
  • 80 GHz radar, flush-mounted Lens antenna
  • Measuring range: 0…100 m / 328 ft
  • -50…+200°C / -58…+392°F; -1…40 barg / -14.5…580 psig
  • 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
  • ±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

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

Depending on selected device configuration

General information

  • Product type: Level transmitter
  • Product family name: OPTIWAVE
  • Product positioning: For powders and dusty atmospheres
  • Measurement variables: Distance, Level, Mass, Reflection, Volume
  • Measurement principle: Radar
  • Level measurement type: Continuous measurement
  • Contact to measured medium: No
  • Interface measurement: No
  • Redundancy: No
  • Measured media: Granulates, Powders, Solids
  • Measuring range (solids):
    • 0…100 m/
    • 0…328 ft
  • Ambient temperature:
    • -40…+80°C/
    • -40…+176°F
  • Operating conditions
  • Process pressure:
    • -1…40 barg/
    • -14.5…580 psig
  • Materials
  • Gaskets: Ethylene propylene diene monomer (EPDM), Fluoroelastomer rubber (FKM/FPM), Kalrez® 6375
  • Wetted parts: Austenitic stainless steel (1.4404/316L), Polyetheretherketone (PEEK), Polytetrafluoroethylene (PTFE)
  • Process connections
  • Flange connections:
    • EN (1092-1): DN50…200
    • ASME (B 16.5): 2…8"
    • JIS (B 2220): 50…200A
  • Pressure ratings:
    • EN (1092-1): PN40
    • ASME (B 16.5): Cl 300#
    • JIS (B 2220): 10k
  • Pressure rating (EN 1092-1): PN40
  • Pressure rating (JIS B 2220): 10k
  • Pressure rating (ASME B 16.5): Cl 300#
  • Thread connections:
    • Male:
      • G1½, G3
      • 1 ½ NPT, 3 NPT

Approvals/Standards

  • Certificates/Approvals Safety: SIL 2/3
  • NAMUR compliance: NE 107, NE 21, NE 43, NE 53
  • Ingress protection: IP66/68, NEMA4X/6P
  • Certificates/Approvals Ex: ATEX, cQPSus, EAC Ex, IECEx, KCs, NEPSI
  • Certificates/Approvals Marine: DNV
  • Certificates/Approvals Others: CRN / ASME B31.3, WHG

Communication

  • Analogue outputs: 4…20 mA
  • Digital outputs: FOUNDATION™ fieldbus, HART®, Profibus-PA

Accuracy

  • Accuracy (solids):
    • ±2 mm/
    • ±0.08 in