krohne OPTIWAVE 6400 Radar level transmitter
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NG # 006625-HW-KROHNE-025
Manufactured by:
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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.
Specification
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 |
Description
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.