OPTIWAVE 6400

Radar (FMCW) level transmitter for solids from granulates to rocks

  • Continuous, non-contact level measurement in/on silos, stockpiles, conveyor belts etc.
  • 24 GHz radar, Horn or Drop antennas
  • Measuring range: 0…100 m / 328 ft
  • -50…+130°C / +266°F; -1…16 barg / -14.5…232 psig
  • Icon/Logo Security Integrity Level 2/3 (SIL 2/3)

OPTIWAVE 6400 with DN150 / 6" PP Drop antenna and low-pressure flange connection

OPTIWAVE 6400 C – 24 GHz radar (FMCW) level transmitter for solids from granulates to rocks

The OPTIWAVE 6400 is a 2-wire 24 GHz radar (FMCW) level transmitter for basic applications with solids. This radar is designed for continuous, non-contact level measurement of stones, plastic granulates, coffee beans and other products in solids processing of various industries. The level transmitter features a Metallic Horn antenna as well as PP and PTFE Drop antennas. The Drop antenna design minimises scaling and is unaffected by the angle of repose. Hence no need for expensive antenna aiming kits or purging systems.

The OPTIWAVE 6400 provides accurate and reliable readings, despite uneven product surfaces or dusty atmospheres. Due to its small beam angle and high dynamic range, the 24 GHz radar can measure distances up to 100 m / 328 ft. This makes it a cost-effective, yet more powerful alternative to pulse radar transmitters. It comes with approvals for hazardous areas and can be used to upgrade radars in basic applications requiring higher accuracy. The radar transmitter offers a large range of flange and thread connections including low-cost disc flanges for low-pressure applications. Optional antenna extensions can be selected to suit any nozzle length. It features extensive device diagnostics (acc. to NE 107) and HART®7 communication.

Product highlights

  • 2-wire, loop-powered, with HART®7
  • Built-in configurations for different surface profiles
  • PP or PTFE Drop antennas:
    • Insensitive to product build-up
    • Small beam angle (4° with DN150 /6″ PTFE Drop antenna)
    • Ellipsoidal shape and smooth surface to prevent scaling
    • Unaffected by angle of repose – no need for antenna aiming kits
    • New DN100 / 4" for distances up to 40 m / 131.2 ft
  • 316L Metallic Horn antenna with optional purging system
  • ±2 mm / ±0.08″ accuracy
  • Spare converter compatible with all OPTIWAVE 6300 C process connections
  • Low-cost 316L low-pressure flange discs
  • Antenna extensions to suit any nozzle length
  • Large choice of flange and thread connections
  • 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
  • SIL 2/3 certified for safety-related applications
  • 3-year warranty

Typical applications

General

  • Level measurement in/on buffer silos, hoppers, stockpiles, bulk storage containers, rock crushers, ore pass, conveyor belts etc.
  • Processes with fast changing levels (≤60 m/min / 196.85 ft/min)

Minerals and mining industry

  • Rock products of different sizes, e.g. stone, gravel, grid
  • Aggregates, e.g. recycled concrete, slag
  • Iron ore
  • Coal, coke
  • Limestone
  • Salt chunks

Chemical industry

  • Fertilisers
  • Plastic shapes and granulates (PE, PP, PVC)

Food and beverage industry

  • Cereals
  • Coffee beans
  • Dry yeast
  • Pet food

Iron, steel and metal industry

  • Iron ore (blast furnace)

Power industry

  • Coke and coal

Pulp and paper industry

  • Woodchips

Accessories for this product

OPTICHECK Master

Handheld for in-depth verification, device commissioning and monitoring

  • On-site performance check and verification (level 0,1,2) without process interruption
  • Convenient commissioning of field devices, e.g. zero calibration
  • Detailed reports for proof test documentation of safety loops acc. to IEC 61508/61511, and for quality management systems (ISO 9001)

View product details
Slanted flange

Slanted flange

Antenna aiming kit for OPTIWAVE 6400 and OPTIWAVE 6500 level transmitters

  • With slight slope (2° angle) for antenna or lens adjustment
  • To direct the beam angle of the radar into the optimal correct part of a silo
  • Material: PP (max. +100°C / +212°F) or PTFE (max. +150°C / +392°F)
  • Available in different sizes: DN80…150 / 3…8”

Wall-mounted bracket

Wall-mounted bracket

Antenna aiming kit for OPTIWAVE level transmitters

  • L-shaped bracket to attach radar level transmitters firmly to a wall
  • Only suitable for radars with G1 or G1½ process connection
  • Material: Stainless steel (1.4404 / 316L)
  • Bracket length: 250mm / 9.84”

Hanging bracket

Hanging bracket

Antenna aiming kit for OPTIWAVE level transmitters

  • Orientable bracket to position a radar level transmitter at any angle up to a 45° angle
  • To direct the beam angle of the radar into the correct part of a tank, silo or stockpile
  • Material: stainless steel (1.4404 / 316L)
  • EPDM sleeve for increased grip of the radar

Orientation system

Orientation system

Antenna aiming kit for OPTIWAVE level transmitters

  • Orientable system with low pressure flange disc
  • To direct the beam angle of the radar into the optimal part of a tank, silo or stock pile
  • Material: stainless steel (1.4404 / 316L)
  • Various sizes for G1½, G3, 1½ NPT and 3 NPT process connections

Low pressure flange disc

Low pressure flange disc

Process connection for OPTIWAVE level transmitters

  • Stainless steel disc to enable firm and even installation of level radars into onto tanks and silos
  • Suitable for radars with G1, G1½, G3, 1 NPT, 1½ NPT or 3 NPT process connections
  • Available in sizes DN50…DN200 / 2…8”
  • Low pressure conditions only: max. 1 barg at 20°C / 14.50 psig at +68° F

Applications

General information

Measurement principleRadar
Level measurement typeContinuous measurement
Measured mediaBulk solids, Granulates, Solids
Contact to measured mediumNo
Interface measurementNo
Measuring range (solids)0…100 m/
0…328 ft
Process pressure-1…16 barg/
-14.5…232 psig
Pressure ratingsEN (1092-1): PN40
ASME (B 16.5): Cl 300#
JIS (B 2220): 10k
Process temperature-50…+130°C/
-58…+266°F
Ambient temperature-40…+80°C/
-40…+176°F
Wetted partsAustenitic stainless steel (1.4404/316L), Polypropylene (PP), Polytetrafluoroethylene (PTFE)
GasketsEthylene propylene diene monomer (EPDM), Fluoroelastomer rubber (FKM/FPM), Kalrez® 6375
Accuracy (solids)±2 mm/
±0.08 in

Approvals/Standards

Certificates/Approvals ExATEX, cQPSus, EAC Ex, IECEx, NEPSI
Certificates/Approvals SafetySIL 2/3
Certificates/Approvals OthersCRN / ASME B31.3, WHG
Ingress protectionIP66/68, NEMA4X/6P
NAMUR complianceNE 107, NE 21, NE 43, NE 53

Communication

Digital outputsFOUNDATION™ fieldbus, HART®, Profibus-PA
Analogue outputs4…20 mA

Process connections

Flange connectionsEN (1092-1): DN80…200
ASME (B 16.5): 3…8"
JIS (B 2220): 80…200A
Thread connectionsMale:
G1, G1½″
1 NPT, 1 ½ NPT

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