
Level measurement
Know the level of your process
Non-contact and hydrostatic measurement for tanks and vessels

76–81 GHz FMCW radar for liquid and solid level applications.
Select the measurement range, process connection and output configuration for your application.
The WSR550 offers multiple range and antenna configurations for vessel and open-water measurement. A narrow beam helps direct the signal toward the target surface. Two-wire and four-wire versions, together with HART or Modbus options, allow the instrument to be matched to the installation.
Values below describe the listed product family. Optional ranges and functions depend on the selected configuration.
| Parameter | Specification |
|---|---|
| Frequency | 76–81 GHz; 5 GHz FMCW bandwidth |
| Range options | 0.08–10 m, 0.08–20 m, 0.08–30 m or 0.3–60 m |
| Accuracy | ±1 mm |
| Beam angle options | 3° or 8° |
| Medium temperature | −40 to 80 °C; customized high-temperature option to 150 °C |
| Process pressure | −0.1 to 2 MPa |
| Signal outputs | 4–20 mA; RS485 |
| Communication | Modbus or HART |
| Power supply | 15–28 VDC or 220 VAC |
| Ingress protection | IP67 |
| Enclosure materials | Aluminum alloy or stainless steel |
| Minimum dielectric constant | 2 |
Confirm the final measuring range, material compatibility, operating limits and applicable approvals for the exact configuration before ordering. Product appearance may vary by version.