The SEWER-MAG is an insertable full bore electromagnetic flowmeter sensor. It ensures extremely accurate flow measurements even under difficult flow conditions. The SEWER-MAG is usually temporarily installed in sewer networks to verify or calibrate existing flow meters. 

The inflatable flow-trough plug forces the water through the measuring tube, which is maintained full with specific designed outlet elbow. The flow-through plug creates a straight section (3x the pipe diameter) upstream the measuring point and the outlet has a length of 2x the pipe diameter downstream.  

Specification 

 
Velocity measurement 

Method Electromagnetic full bore 

Range ±0,001 m/s to ±2 m/s 

Accuracy ±2% from reading at minimum at ± 0,2 m/s 

Resolution 0,001 m/s Depth Accuracy Ultrasonic Sensor :Typical ± 1%