External consumption-detecting device for meter-equipped users supplied by distribution networks

摘要

The device comprises an optical sensor (17) which is applicable outside of the meter, is responsive to the movement of the index (11a) of the consumption indicator (11) of the meter and is adapted to produce a useful signal (SU) every time the index passes in front of said sensor; the useful signal is amplified and converted from analog to digital by square-wave forming and threshold-­adapting means (20) in order to be sent on a data transmission network (RT), in particular on a telematic network.