Flowmeter Calibration

Unless otherwise specified all of our flowmeters are calibrated on our positive displacement oil or water flow rigs, these have an overall uncertainty of ±0.25% (95% CL). The maximum flow range on water is 190 litres per minute and on oil 40 litres per minute (depending on viscosity). The flow rigs are checked annually against certified weigh scales that are traceable to national standards.