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Drinking water flow monitoring

Installation & commissioning of an AVI-Mag with measurement compared to a reference flowmeter
Drinking water flow monitoring

Installation and commissioning was done in 90 min

CUSTOMER

Our customer collects water from water wells, fountains & springs and distributes this drinking water to ±2.000.000 inhabitants in large area located in central Germany. Amongst the delivered cities are Frankfurt, Wiesbaden and Darmstadt.

 

TASK DEFINITION

  • Installation & commissioning has to be done in existing pipe and valve without flow shut down
  • Installation shall be quick and easy
  • Pipe size: 1000 mm
  • Very accurate flowrate needed
  • Measurements are compared to a full bore electromagnetic flowmeter located in the same waterline

 

SOLUTION

  • Installation of one AVI-MagTM 1,5” full pipe multi-point electromagnetic flowmeter allowing installation through a 2” ball valve without shutting down the flow
  • The AVI-MagTM is connected to a stationary converter, the ML210, displaying all information on a LCD screen and transmitting the data via 4-20 mA to the SCADA system of the customer
  • No calibration on site necessary

 

INSTALLATION

  • The total duration for the installation and commissioning including tests for data transmission and cabling of the outputs was around 90 minutes

 

MEASURING POINT

  • 4 m downstream of a 90° pipe elbow with diameter reduction

 

SENSOR

  • Sensor for a DN1000 pipe with 5 pairs of electrodes
  • Total sensor length is 1800mm

 

FIRST VALUES

  • Measuring data from AVI-MAG and full bore mag meter show very little differences
  • For the total test duration, the average difference between meters is 1,14%
  • The performance of the AVI-MAG is outstanding, taking in consideration that the sensor is installed close to a pipe elbow
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