- Flow sensor in T-type
- To be mounted in the pipe
- Various materials available
- Easy flow measurement
- Rugged construction
- Reliable
Water
from 12 up to 1000 l/min
from 0 up to 100 °C
from 0 up to 20 bar
Water & waste water industry, Chemical industry
General information
The series 228 flow sensors feature a six bladed impeller design with a proprietary non-magnetic sensing mechanism. The forward swept impeller shape provides higher, more consistent torque than four bladed impeller designs and is less prone to be fouled by water borne debris. The forward curved shape coupled with the absence of magnetic drag provides improved operation and repeatability even at lower flow rates. This is especially true where the impeller is exposed to metallic or rust particles found in steel or iron pipes.
As the liquid flow turns the impeller, a low impedance square wave signal is transmitted with a frequency proportional to the flow rate. The signal can travel up to 600 m between the flow sensor and the display unit without the need for amplification.
All sensors except irrigation versions are supplied with 6 m of 2-conductor 20 AWG shielded U.L. type PTLC 105°C cable.
The tee mounted flow sensors consist of a standard 220 BR or 220 SS mounted in a 2" or 2.5" tee.
Technical data
| Mounting in pipe sizes DN | 50 – 65 / 2 – 2,5“ |
| Flow range in m/s (standard) | 0,15 – 9 |
| Flow range in m/s (low flow) | - |
| Accuracy (full scale / Qmax.) | ±1 % |
| Accuracy (of reading) | - |
| Repeatability (full scale / Qmax.) | ±0,3 % |
Measuring principle
Impeller meters
The series feature a six-bladed impeller design with a proprietary, non-magnetic sensing mechanism. The impeller shape coupled with the absence of magnetic drag provides accuracy and repeatability throughout the flow range of the sensors. As the liquid flow turns the impeller, a low impedance square wave signal is transmitted with a frequency proportional to the flow rate.
Accessories
- Scaled pulse output: 2 analog outputs or 2 frequency outputs available
- 1 relay output
- Communication via EIA-485 ModBus®...
- Control panel mounted
- Pump control based on flow and pressure
- Pump control based on level and pressure
- Water feature...
