KROHNE OPTIWAVE 7400
Radar level transmitter for advanced applications with agitated and corrosive liquids
- Continuous, non-contact level measurement in harsh environments
- 24 GHz radar, Horn or Drop antennas
- Measuring range: 0…100 m / 328 ft
- -50…+200°C / -58…+392°F, up to +700°C / +1292°F in non-ex applications; -1…100 barg / -14.5…1450 psig (higher on request)
Specifications
General information
| Product type | Level transmitter |
| Product family name | OPTIWAVE |
| Product positioning | For agitated and corrosive liquids |
| 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 | Liquids, Slurries, Pastes |
| Measuring range (liquids) | 0…100 m/ 0…328 ft |
| Ambient temperature | -40…+80°C/ -40…+176°F |
| Measuring point | Pressurised tank, Open tank, Stilling well |
Operating conditions
| Process pressure | -1…100 barg/ -14.5…1450 psig |
| Process temperature | -50…200°C/ -58…+390°F Special version (on request): |
Materials
| Antenna | Polyetheretherketone (PEEK), Polytetrafluoroethylene (PTFE) |
| Gaskets | Ethylene propylene diene monomer (EPDM), Fluoroelastomer rubber (FKM/FPM), Kalrez® 6375 |
Process connections
| Flange connections | EN (1092-1): DN40…200 ASME (B 16.5): 1½…8″ JIS (B 2220): 40…200A |
| Pressure ratings | EN (1092-1): PN100 ASME (B 16.5): Cl 1500# JIS (B 2220): 10k |
| Thread connections | Male: G1½ 1½ NPT |
Approvals/Standards
| Certificates/Approvals Others | NACE, WHG, CRN / ASME B31.3 |
| Certificates/Approvals Ex | ATEX, cQPSus, IECEx, NEPSI, EAC Ex |
| Certificates/Approvals Marine | DNV, NK |
| 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 (liquids) | ±2 mm/ ±0.08 in |
