Description: Weighing from 000002 g to 15000 g The scale is inserted into a transport line of objects to be checked of any nature and shape. The passing object takes some time to traverse the entire weighing pan; this time, although small, is sufficient for the scale to settle in a position proportional to the weight of the object. When the object is about to leave the weighing pan, it intercepts a light beam that crosses the conveyor. The phototransistor receiver, thus obscured, provides the electronic circuit with the command to carry out the reading of the weight at that precise moment. This weight value is immediately compared with the two values, lower and upper, set as limits of the allowed tolerance. From this comparison arises the decision of the machine to accept or not the weighing, i.e. whether to let the object go on undisturbed, or to deviate or expel it.