Overview
The OPTIFLEX 6200 is a 2-wire guided radar level transmitter based on the Time Domain Reflectometry (TDR) technology. It is designed for the level measurement of solids in bulk storage and other silos up to a height of 40 m / 131.2 ft. The single rod or single cable probes withstand high traction loads, making the level transmitter suitable for use in a wide range of applications with solids of different grain sizes – from fly ash and cement to gypsum and plastic granulates to tobacco and starch. This guided radar is equally suitable for applications involving milk, sugar, chocolate or coffee powder.
Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.
- Designed to withstand high traction loads (<3.6 t)
- Specific algorithm for low-reflective media
- ESD protection (24 kV) for increased resistance to electrostatic discharges
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Various converter and electronic versions to facilitate access to the device:
- Available as compact version (C) or with remote converter (F) up to 100 m / 328 ft
- Horizontal or vertical housing to suit every installation
- Converter is rotatable and removable under process conditions and compatible with all previous Guided Radar (TDR) level transmitters made by KROHNE
- Weather protection – protects the converter in extreme weather events
- Stainless-steel housing for corrosive environment
- SIL 2/3
- ±2 mm /±0.08'' accuracy
- Real-time clock for event logging
- 3-year warranty
Specifications
Depending on selected device configuration
General information
| Product type | Level transmitter |
| Product family name | OPTIFLEX |
| Product positioning | For solids from granulates to powders |
| Measurement variables | Distance, Level, Mass, Volume, Dielectric constant |
| Measurement principle | Guided radar (TDR) |
| Level measurement type | Continuous measurement |
| Contact to measured medium | Yes |
| Interface measurement | No |
| Measured media | Solids, Bulk solids, Granulates, Powders |
| Measuring range (solids) |
0.6…40 m 1.97…131.23 ft |
| Probe length units to display | m/ft |
| Probe length |
0.6…40 m 1.97…131.23 ft |
| Probe diameter |
|
| Measuring point | Silo |
Operating conditions
| Process pressure |
-1…40 barg -14.5… 580 psig |
| Process temperature |
-50…+200°C -58…+392°F |
Materials
| Gaskets | Ethylene propylene diene monomer (EPDM), Fluoroelastomer rubber (FKM/FPM), Kalrez® 6375, PEEK, Polytetrafluoroethylene (PTFE) |
| Wetted parts | Austenitic stainless steel (1.4404/316L), Polytetrafluoroethylene (PTFE) |
Process connections
| Flange connections |
EN (1092-1): DN40…150 ASME (B 16.5): 11⁄2…8'' JIS (B 2220): 40…200A50…100A |
| Thread connections |
Male: G1½ 1½ NPT |
Approvals/Standards
| Certificates/Approvals Others | NACE |
| Certificates/Approvals Ex | ATEX, cQPSus, IECEx, NEPSI, INMETRO |
| 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 |
| Discrete outputs | Relay |
| Digital outputs | HART® |
Accuracy
| Accuracy (solids) |
±2 mm ±0.08 |
US 10983 
GB 8252 
CA 7482 
AU 7061 
IE 4942 
VN 2843 
NZ 2791 
BR 1287 
