The time and cost which requires the adjustment of a load cell in case of manufacturing the multi-point type weighing equipment using a plurality of load cells are fully reduced.
Four strain gauges comprise a Wheatstone bridge circuit for every load cell, and it has composition that these were connected in parallel.
When all the load cells are not loaded, in order to make small the variation of the load cell of the output voltage depending on temperature between CD in case of input voltage being applied between AB as much as possible, temperature compensator (182) which is the first resistance for adjustment is provided in the Wheatstone bridge circuit corresponding to load cell (10).
Also, when all the load cells are not loaded, in order to make minimum the absolute value of the output voltage between CD in case of input voltage being applied between AB as much as possible, zero balance adjustment resistance (183), which is the second resistance for adjustment, is also provided in this Wheatstone bridge circuit.