The Proline Prosonic Flow 90P and 93P series are ultrasonic flow meters that measure volumetric flow by detecting the time‑difference of sound waves traveling upstream and downstream. The system consists of a transmitter and one or two sensor pairs, which can be installed in various pipe sizes and materials.
The manual covers sensor arrangement, installation guidelines, electrical specifications, communication options (PROFIBUS PA/DP), and ordering information. It also provides data on supported fluids, temperature ranges, protection ratings, and output signal configurations. This manual is written in Chinese.
| Sensor nominal diameter range (2‑channel) | DN 80…600 |
|---|---|
| Sensor nominal diameter range (1‑channel) | DN 650…4000 |
| Protection rating (sensor) | IP 68 |
| Measurement velocity range | 0 m/s … 15 m/s |
| Output signal (active) | 0/4.20 mA, RL < 700 Ω |
| Output signal (passive) | 4.20 mA, 18.3 VDC supply |
| PROFIBUS PA current consumption | 11 mA |
| PROFIBUS PA data rate | 31.25 kBit/s |
| PROFIBUS DP data rate | 9.6 kBaud … 12 MBaud |
They operate on the ultrasonic time‑difference principle, measuring the delay between sound signals traveling upstream and downstream.
The Prosonic Flow 93 has two independent measurement channels that can work simultaneously.