How to Calibrate Water with Digital Flow Meter

Flow calibration is very vital in the industry. It helps to achieve accuracy in readings and aid in making a sensor operate more safely. Have you been stuck on how to calibrate water with a digital water flow meter? Well, you have landed in the right place. Please sit back and relax as we take you through that.

Master Meter Calibration

Master meter is the most used method of Flow calibration. Are you worried about how it works?  The technique works by comparing the gauging of a sensor you are testing and the working flow meter. Master meter has a calibration set either to a local or global standard. If you have issues calibrating water with this method, follow the steps below.

  • First, place the master meter in series with your digital water flow meter.
  • Go ahead and the readings from the master meter with that of the digital water flow meter. You do that by use of a gauged volume of water.
  • Finally, adjust your digital flow meter to hold to that of the master meter calibration.

Piston Prover Calibration

Piston prover is a cylindrical tool that has an internal diameter. Using the piston prover method, you force a weighted water volume in a digital water flow meter.

Piston prover comes with a piston that aids in creating a volume flow using sure excision. This method is suitable for turbine flow calibration and fuel flow meter calibration. It gives a high degree of accuracy. For you to do a piston prover adjusting,  heed to the steps below to the latter.

  • Put a sample of gauged water in the piston prover and the water flow meter.
  • Take the volume of water shifted from the piston prover. You can get that by raising the inner width with the length moved by the piston.
  • Proceed by comparing those figures you got in step two above. After that, you can adjust your digital sensor.

Gravimetric Calibration

When it comes to accuracy, this method is the real deal for water using digital flow meters. It is also very cheap, and that makes it more applicable.

The method is used mostly with water. But, you can also apply when adjusting oil and other fluids. For you to use this method, follow these steps:

  • Start by placing a small amount of process water in a digital water flow meter.
  • Gauge it for about sixty seconds of flow.
  • You can use a set scale to get an accurate calculation of the water that you are testing.
  • Once the set time is over, go ahead and divert the test water into a box.
  • Take the flow rate of the small portion of the water used.
  •  Divide its volumetric value by the time spent in the test.
  • Finally, relate the weighted flow rate to the digital meter’s flow rate. You can adjust it to the recorded flow rate.

Final Word

To get correct readings, you must reset your digital water flow meter daily. That will also help to keep a line or even trace for your sensor. Ensure you follow the above steps on how to adjust water using a digital water flow meter.

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