Overview
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.
Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.
- 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
-
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
- 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
Specifications
Depending on selected device configuration
General information
| Product type | Level transmitter |
| Product family name | OPTIWAVE |
| Product positioning | For solids from granulates to rocks |
| Measurement variables | Distance, Level, Mass, Reflection, Volume |
| Measurement principle | Radar (FMCW) |
| Level measurement type | Continuous measurement |
| Contact to measured medium | No |
| Interface measurement | No |
| Redundancy | No |
| Measured media | Solids, Bulk solids, Granulates |
| Measuring range (solids) |
0…100 m/ 0…328 ft |
| Ambient temperature |
-40…+80°C/ -40…+176°F |
| Measuring point | Silo, Stockpile, Conveyor belt, Shaft, Bunker, Crusher |
Operating conditions
| Process pressure |
-1…16 barg/ -14.5…232 psig |
| Process temperature |
-50…+130°C/ -58…+266°F |
Materials
| Antenna | Polypropylene (PP), Polytetrafluoroethylene (PTFE) |
| Gaskets | Ethylene propylene diene monomer (EPDM), Fluoroelastomer rubber (FKM/FPM), Kalrez® 6375 |
Process connections
| Flange connections |
EN (1092-1): DN80…200 ASME (B 16.5): 3…8'' JIS (B 2220): 80…200A |
| Pressure ratings |
EN (1092-1): PN40 ASME (B 16.5): Cl 300# JIS (B 2220): 10k |
| Thread connections |
Male: G1, G1½″ 1 NPT, 1½ NPT |
Approvals/Standards
| Certificates/Approvals Others | WHG, CRN / ASME B31.3 |
| Certificates/Approvals Ex | ATEX, cQPSus, IECEx, NEPSI, EAC Ex |
| Certificates/Approvals Safety | SIL 2/3 |
| Ingress protection | IP66/68, NEMA4X/6P |
| NAMUR compliance | NE 107, NE 21, NE 43, NE 53 |
Communication
| Analogue outputs | 4…20 mA |
| Digital outputs | FOUNDATION™ fieldbus, HART®, Profibus-PA |
Accuracy
| Accuracy (solids) |
±2 mm/ ±0.08 in |
US 7673 
BR 3210 
VN 2337 
CN 1010 
GB 892 
IN 761 
AU 743 
CA 732 
