Product Overview
The Siemens SITRANS LR250 is a two-wire, non-contact radar level transmitter for continuous measurement of liquids and slurries. Its 25 GHz pulse-radar technology provides reliable level measurement in storage tanks and process vessels, including installations involving vapour, pressure, temperature changes and corrosive media.
It is widely installed in marine, offshore, chemical, petrochemical, pharmaceutical and industrial processing applications.
Key Features
✔ 25 GHz pulse-radar technology
✔ Non-contact continuous measurement
✔ Measuring range up to 20 m
✔ Accuracy up to ±3 mm
✔ Suitable for liquids and slurries
✔ 4–20 mA HART communication
✔ PROFIBUS PA option
✔ Graphical local display
✔ Intrinsically safe and explosion-proof versions
✔ SIL-rated configurations available
✔ Various horn and encapsulated antennas
✔ Suitable for corrosive and hygienic applications
✔ Easy configuration using Siemens SIMATIC PDM
✔ Low-maintenance measuring principle
Technical Specifications
| Specification | Details |
|---|---|
| Measuring principle | 25 GHz pulse radar |
| Measuring range | Up to 20 m |
| Accuracy | Up to ±3 mm |
| Output | 4–20 mA HART |
| Alternative communication | PROFIBUS PA |
| Process temperature | –40°C to +200°C, configuration dependent |
| Process pressure | Vacuum to 40 bar, configuration dependent |
| Antenna options | Threaded PVDF, stainless-steel horn and encapsulated antenna |
| Display | Graphical local display with push-button programming |
| Wetted materials | 316L stainless steel, PTFE or PVDF |
| Protection | Up to IP68, configuration dependent |
| Approvals | Hazardous-area and SIL options available |
Typical Applications
- Fuel-oil tanks
- Diesel-oil tanks
- Lubricating-oil tanks
- Chemical tanks
- Slop tanks
- Process vessels
- Storage tanks
- Day tanks
- Slurry vessels
- Corrosive-liquid tanks
- Pharmaceutical and hygienic vessels
Industries
✔ Marine
✔ Offshore
✔ Oil and gas
✔ FPSO
✔ Chemical
✔ Petrochemical
✔ Pharmaceutical
✔ Food and beverage
✔ Power generation
✔ Water treatment
