Product overview
The Siemens SITRANS LR110 is a compact 80 GHz FMCW radar transmitter designed for continuous, non-contact measurement of liquids, slurries and bulk solids.
Its narrow radar beam, compact PVDF housing and high measurement accuracy make it suitable for smaller tanks, confined installation areas and demanding marine or industrial environments.
Key features
- Non-contact continuous level measurement
- 80 GHz FMCW radar technology
- Up to 20-metre measuring range, depending on configuration
- Approximately ±2 mm measurement accuracy
- Narrow 8° beam angle
- Bluetooth commissioning using SITRANS Mobile IQ
- Chemically resistant PVDF enclosure
- Compact design for restricted installation areas
- 4–20 mA with HART 7 communication
- Optional Modbus RTU communication
- Hazardous-area versions available
- Suitable for measurement through non-metallic tank covers
- No moving components and minimal maintenance
Technical specifications
| Parameter | Specification |
|---|---|
| Measuring principle | 80 GHz W-band FMCW radar |
| Measuring medium | Liquids, slurries and bulk solids |
| Measuring range | Up to 20 m, configuration dependent |
| Accuracy | Approximately ±2 mm |
| Beam angle | Approximately 8° |
| Output | 4–20 mA |
| Communication | HART 7 or optional Modbus RTU |
| HART power supply | 12–35 V DC |
| Process pressure | Approximately −1 to +3 bar |
| Process temperature | −40°C to +80°C |
| Ambient temperature | −40°C to +80°C |
| Housing material | PVDF |
| Process connections | 1½-inch NPT, BSPT or BSPP |
| Protection rating | IP66/IP68 |
| Configuration | Bluetooth or remote configuration |
| Hazardous-area options | ATEX, IECEx and other Ex variants |
Marine approvals
Available configurations carry major marine classification approvals, including:
- ABS
- CCS
- DNV
- Lloyd’s Register
- ClassNK
- RINA
The required marine certificate must be confirmed when ordering.
Marine and industrial applications
- Ballast-water tanks
- Freshwater and wastewater tanks
- Fuel and lubricating-oil storage tanks
- Chemical and dosing tanks
- Sludge and slurry tanks
- Bilge-water collection tanks
- Pump wells and sumps
- Offshore process skids
- Water-treatment systems
- Bulk-solid storage vessels
