Combined Sewer Overflow (CSO)
Level measurement in the stormwater overflow chamber
Application
Large Combined Sewer Overflows (CSO’s) protect the wastewater treatment plant from a capacity overload during heavy rain. The precipitation is temporarily stored and then delivered to the treatment plant at a reduced rate. If the stormwater basin cannot hold the accumulating quantities of water, part of it will be discharged. Due to legal requirements, such operational events and discharged water quantities have to be measured and documented.
Recommended Products
VEGAPULS WL 61
Non-contact level measurement provides basis for documentation of impounding and discharging events
- Non-contact, maintenance-free measurement
- Small dead band allows measurement up to the ceiling
- High accuracy allows measurement of discharge volume with one sensor
- Reliable full signal even if sensor is inundated
Measuring range - Distance
15 m
Process temperature
-40 ... 80 °C
Process pressure
-1 ... 2 bar
VEGAMET 391
Signal conditioning and display instrument for level and discharge volume
- Display and storage of the impounded volume
- Calculation of the discharge volume
- Data transmission over Ethernet or analogue 4 ... 20 mA
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
Hydrostatic level measurement as an alternative: VEGAWELL 52
Hydrostatic level measurement for continuous monitoring of impounding and discharging events
- High accuracy and operational reliability
- Long-term stability thanks to ceramic measuring cell
- Very simple setup and commissioning
Measuring range - Pressure
0 ... 60 bar
Process temperature
-20 ... 80 °C
Process pressure
-
US 9827 
BR 3522 
TR 1949 
AU 1564 
CA 1505 
TH 1405 
JP 1391 
SG 1081 
