
Flow measurement
Understand what flows
Explore technologies for liquid, gas and steam measurement

A velocity-based meter for the volumetric flow of low-viscosity liquids.
Select the measurement range, process connection and output configuration for your application.
The LWGY uses a turbine sensing element within a closed pipe. Its straightforward mechanical arrangement supports repeatable flow monitoring with pulse, analog or communication outputs. Fluid viscosity affects performance; liquids above the stated viscosity threshold require calibration before use.
Values below describe the listed product family. Optional ranges and functions depend on the selected configuration.
| Parameter | Specification |
|---|---|
| Nominal diameter | DN4–DN200 |
| Accuracy options | 0.5%R; 1.0%R |
| Medium viscosity | Below 5 × 10⁻⁶ m²/s; higher viscosity requires calibration |
| Medium temperature | −20 to 120 °C |
| Output options | Pulse, 4–20 mA, Modbus, HART |
| Power supply options | 3.6 V lithium battery; 220 VAC; 24 VDC |
| Ingress protection | IP65; IP67/IP68 by agreement; pulse converter probe IP00 |
| Atmospheric pressure | 86–106 kPa |
Confirm the final measuring range, material compatibility, operating limits and applicable approvals for the exact configuration before ordering. Product appearance may vary by version.