A rain gauge can give first indication of increased surface water entering the sewer network. This provides information to treatment works upon predicted increased water volumes.
Level measurement using ultrasonic sensor
Ultrasonic pulses are reflected by the surface and received at the sensor. A common application is for depth v flow-rate determination on weirs or for monitoring sewer overflows at times of excessive rainfall.
Pump time functioning – current clamp
The current clamp detects when a pump is taking electric power; thus monitoring the functioning time of the pump. The volume of water pumped is calculated from the pump run-time.
The overflow sensor is self-powered and, when submerged, indicates presence of water. The system measures the time an overflow occurs. The sensor has a designed profile to avoid sediment build up.