Dear all,

My company located in Vietnam, we have 16 boiler systems (range of capacity from 6 TPH to 30 TPH) to supply steam to client factory, we used vortex flow meter (brand: Endress Hauser) to measure supplied steam, based on it we make payment to client.

however, after 2 years, the client request us to calibrated and verification all vortex flow meter.

So, anyone can explain to me the procedure to calibrated Vortex flow meter and international standard for calibration vortex flow meter

Thanks a lot.

I am looking forward to hearing from you.