Inter-comparison of calibration of a turbine gas meter G6500

Project Description

An axial turbine gas meter G6500 will be used to compare low pressure test facilities over the flow range (1000 ÷ 10000) m³/h. The turbine gas meter G6500 will be calibrated at 8 flow rates: 10000 m³/h, 8000 m³/h, 6500 m³/h, 5000 m³/h, 4000 m³/h, 3000 m³/h, 2000 m³/h, 1000 m³/h.The laboratories should carry out the calibration using their common procedures.The laboratories should use their upstream straightening pipe (at least 5x DN) and the downstream straightening pipe (at least 3x DN) during the calibration of the gas meter. If laboratories are not able to cover all the flow rates, they may calibrate the meter over part of the flow range.Each laboratory will be responsible for the transfer of the meter to the next laboratory. No other costs are expected.
Test conditions:

  • Test gas: air
  • Test pressure: near atmospheric
  • Test temperature: (19,5 ÷ 23,5) ºC

Final Report 2020-02-26

The project has been completed and the final report can be downloaded here>>

Progress Report 2019-04-09

Technical Protocol with the calibration procedure, the procedure of evaluation and time schedule  was issued.
The technical protocol can be downloaded here>>

Flow (F)
Coordinating Institute
CMI (Czechia)