Level measurement in a vacuum tank
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Vacuum sewerage system
Level measurement in a vacuum tank
Application
When new developments are opened up, it can be quite expensive to build a sewage network with a suitable downward fall. In such cases, a vacuum sewer network offers an interesting alternative to traditional sewer systems. The wastewater is transported to the pumping station under vacuum, which allows significantly smaller pipes to be used and stretches of upward slope spanned. A central vacuum pumping unit conveys the wastewater from households via a central sewage discharge into the public sewer system. An ultrasonic sensor cannot function in a vacuum.
Recommended Products
VEGAPULS WL 61
To control the system, the level in the vacuum tank must be continuously monitored
- Reliable operation under changing pressure conditions
- Reliable level measurement even when there is foam or an unsteady, agitated surface
- Non-contact measurement allows maintenance-free operation
Measuring range - Distance
15 m
Process temperature
-40 ... 80 °C
Process pressure
-1 ... 2 bar
VEGAMET 391 - Power supply for sensor, measurement data processing and display
Power supply for sensor, measurement data processing and display
- Simple regulation and control of level and pressure measuring instruments
- Analogue and digital outputs for connection to process control systems
- Large measured value display
Protection rating
IP 20/IP 65
Input
1 x 4 … 20 mA/HART sensor input
with transmitter power supply
Output
1 x 0/4 … 20 mA current output
up to 6 x operating relay
1 x fail safe relay
1 x Ethernet or 1 x RS232
Inquiry - Level measurement in a vacuum tank
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Water and wastewater
