Differential pressure measurement in a gravel filter
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Gravel bed filter
Differential pressure measurement in a gravel filter
Process data
Measuring task
Differential pressure measurement
Measuring point
Filter tank
Measuring range up to
+3 bar
Medium
Untreated water
Process temperature
+2 … +15 °C
Process pressure
0 … +3 bar
Special challenges
Sand and stone particles in the filter material
Application
The suspended matter is filtered out of the water via the sand and gravel filled filter tank. Pressure is applied to pump water through the filter bed. Dirt particles are retained in the filter material. The electronic differential pressure measurement monitors the level of contamination in the filter. As soon as the threshold contamination is exceeded, an automatic cleaning cycle of the filter is triggered.
Your benefit
Reliable
Approved materials according to FDA and EC 1935/2004, as well as local certification
Cost effective
Optimal flow
User friendly
Function check is possible during operation
Recommended products
VEGABAR 82
Electronic differential pressure measurement for filter monitoring
- Highly abrasion resistant thanks to ceramic CERTEC® measuring cell
- Moisture proof measuring cell for long-term stability and reliability
- Simple installation, since the use of differential pressure tubes is unnecessary
Measuring range - Distance
-
Measuring range - Pressure
-1 ... 100 bar
Process temperature
-40 ... 150 °C
VEGATRENN 141
Separator for optimum supply of power to the connected sensors
- On-site diagnostics for immediate display via LEDs
- Simple parametrization interface with HART sockets for convenient operation
- Galvanic separation between sensors and PLC is secured
Protection rating
IP 20
Input
1 x 4 … 20 mA/HART sensor input
Output
1 x 4 … 20 mA
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