T7CS consistency transmitter measure the shear force caused by the interaction between blade sensor and fibers/fillers contained into the pulp (all consistency transmitters using a static or moving blade are based on shear force working principle) and linearly converts the shear force into a 4÷20 mA or HART ® signal. According to the type of pulp flowing into the pipe (waste paper [many different types], short or long fibre cellulose etc; fillers types and content, etc.) the output signal, proportional to shear force, will change and the results will set the measuring span. The T7CS have two types of blade sensors: LS, typical for consistency values 1,5…5% and HS, typical for consistency values 3…8%.
