Anderson-Negele FWS-141 / FWA-141
Ultrasonic Flow Switch | Food, Beverage and Dairy
Flow Sensors
Flow monitoring in pipes from DN25 on of media with particles > 50 µm, like drinking water, milk, etc...
- Reliable dry-run protection and monitoring of pumps, filtres or agitators.
- Monitoring of filters or valves.
- Very short response time < 1 s
- Not influenced by temperature fluctuations and conductivity.
- Easy “Teach-In”.
- Adjustable switching point.
- Optional analog output for the rough measurement of flow rates.
- Measurment unafffected by temperature changes.
Reliable flow control for all media
FWS/FWA – The temperature independent problem solver
Flow switches are used in almost all processes to monitor the technical safety of the plant and the correct operation of the processes.
A possible malfunction of a pump, a closed valve or a misdirected medium are reliably detected and reported.
A possible malfunction of a pump, a closed valve or a misdirected medium are reliably detected and reported.
FWS/FWA ultrasonic flow monitor for aqueous and non-aqueous media
Many flow monitors are only suitable for aqueous media
In contrast, the FWS, thanks to its ultrasonic Doppler measuring principle, is ideal for all media displaying the slightest turbidity or air bubbles.
- For media where other flow switches do not work: e.g. dough, glycol, oils and oil-based media, adhesive or viscous media, creams, but also drinking water, milk, juice (unfiltered) and CIP media.
For all media with turbidity > 1 NTU or particle size > 50μ - Extremely fast: The response time of < 1 second provides maximum system security through error signals in real time.
Measuring range 0,1…2,5 m/s, Response time < 1s - Temperature independent: Temperature changes as for example cold product – hot water – CIP solutions have no influence on the measurement.
Long-life Technology for process temperatures and CIP / SIP up to 100 °C (212°F) continuously - Versatile: Ideal for monitoring pump systems, filters, agitators, cooling circuits, CIP return flow…
- With type FWS the switching output is adjustable in % of the flow rate.
- The type FWA offers with 4…20 mA an analogue output for the flow rate (measuring accuracy ±10%). In many applications this accuracy is sufficient to economise a highly accurate and expensive flowmeter.
