Master meters are meters that have extremely good repeatability and have high precision to be used as a reference during the calibration of a flow meter.
The calibration of flowmeters using master meter method is an efficient way for calibration as it can be done in-situ (meter under test does not need to be removed). They can also be installed on trolleys to move them around easily.
CCIC E&M has a range of master meters to suit the different needs of each client. They are different in sizes, minimum and maximum flowrates and are also used for different applications.