Electromagnetic flow meter with GPRS output under calibration

In my factory, we could produce electormagnetic flow meter from DN3- DN3000.

And we have calibration equipment in this size range.

To measure the accuracy for each flow meter, every product will be calibration correctly on the rig.

Normally, we use master meter and weighting method to calibration flow meters.

The best accuracy could reach 0.2% after calibration.

In last year, my company also finished the production for DN65- DN800 calibration equipemnt

It have weighting with 0.03% accuracy.