#$%^&*AU2013228018A120140403.pdf#####Abstract of the Disclosure SYSTEM AND METHOD OF CALIBRATING THE METER 5 OF A PRODUCT DISTRIBUTION MACHINE A system and method of calibrating a meter of a product distribution machine, such as an agricultural air seeder is shown The system uses one or both of optical and mass flow sensors to measure the product flow rate, The sensors are used to 10 measure mass flow rate during a calibration process while the machine is in use, To improve sensor accuracy during the calibration process, the meter speed is changed to change the product flow rate to a rate at which the sensor accuracy is increased.1/3 Ln CC) H LL C) I crco NN
