Do you have a question about the Endress+Hauser prowirl 77 and is the answer not in the manual?
Proper usage, safety warnings, and operational safety requirements.
Inlet and outlet piping requirements for optimal flow profile and accuracy.
Instructions for mounting the flowmeter, including face-to-face lengths.
Steps for connecting the transmitter, emphasizing safety regulations.
Diagram showing connection of PROFIBUS-PA devices to a network.
Setting the device address using DIP switches or software for recognition.
Lists system errors and warnings with causes and remedies.
Troubleshooting no flow signal, vibration effects, and poor signal quality.
| Device Type | Vortex flowmeter |
|---|---|
| Process Temperature | -200 to +400 °C (-328 to +752 °F) |
| Application | Liquids, gases |
| Measured Variables | Mass flow, temperature |
| Nominal Diameter | DN 15 to DN 300 |
| Process Connection | Flange, threaded |
| Wetted Materials | Stainless steel, Hastelloy |
| Output Signal | 4-20 mA, pulse output |
| Power Supply | 24 V DC |
| Ingress Protection | IP66 |
| Approvals | ATEX, IECEx |
| Measurement Principle | Vortex shedding principle |
| Accuracy | ±0.75% of reading (liquids), ±1% of reading (gases and steam) |











