An automatic weighing instrument is an instrument that determines the mass of a product without the intervention of an operator.
Its characteristic is to follow a predetermined program of automatic processes.
For commercial use, such instruments must comply with the requirements stated in Directive 2014/32/EU, in particular:
LAUMAS provides weight indicators (W series) and weight transmitters (TLB and TLB4) that comply with the Directive and are certified as “MID transmitters” for gravimetric filling machines (TLB4 also for catchweighers). In order to compose a weighing system certified as a complete MID device, the weight transmitters will have to be connected to other devices and the whole assembly will have to be certified.
Here is a list of the main automatic weighing instruments that must meet the OIML (International Organization of Legal Metrology) requirements and recommendations: