The invention relates to an in-motion scale, in particular, to a conveyor scale with a conveyor belt, with a load cell (9) and a conveying device (5) for goods to be weighed, in particular, packaged goods, for feeding the goods to and leading them away and from the load cell (9), and with a control device (11) for controlling the functions of the in-motion scale. According to the invention, the control device (11) can be changed over to a cleaning mode in which the functions of the in-motion scale (1) are controlled according to a specified cleaning-mode functional model so that danger to operating personnel and/or damage to the in-motion scale (1) is reduced or eliminated.