Control Meter with Safety Deactivation

The control meter of at least one of the preceding claims, wherein the interrupter (11, 11a, 11b) is formed by a pair of flexible metal sheets (11a, 11b) resiliently contacting each other, and the mechanical means being provided with a wing (10) apt to interpose itself between the flexible metal sheets (11a, 11b) in the locking position.

The control meter of at least one of the preceding claims, wherein the interrupter of the safety anchorage is formed by a micro-interrupter (110, 111, 112), the command button (111) of which is actuated by an oscillating arm (112) moved by the mechanical means.

The control meter of at least one of the preceding claims, wherein the interrupter of the safety anchorage is formed by an optical transmitter and an optical receiver, forming a pair of optical devices with a transmitter-receiver coupling, and the mechanical means being provided with a wing apt to interrupt the transmitter-receiver coupling by interposing itself into the path between the optical transmitter and an optical receiver in the locking position.

The control meter of at least one of the preceding claims, wherein the metering group (2) is mountable on the support base (1) by means of a bayonet-type attachment system with which the safety anchorage cooperates.

The control meter of at least one of the preceding claims, wherein the interrupter is arranged to irreversibly command, upon actuation, the opening of a power switch (52) of the subscriber line (50).

The control meter of at least one of the preceding claims, comprising

• an electronic circuit (14) for memorizing the activation signal;
• and
• a local control unit for reading the activation signal from the electronic circuit and for sequentially resetting the electronic circuit (14) a predetermined number of times and for transmitting a tamper signal to an remote central control and/or interrupting the power supply and/or setting a local flag, if after the predetermined number of reset operations the electronic circuit holds the activation signal.

The control meter of at least one of the preceding claims, wherein the electronic circuit (14) is supplied by a battery (15) having the same service life as the meter.

The control meter of at least one of the preceding claims, wherein the metering group includes a measurement apparatus comprising

• translating means for transforming the values of the effected measurements into data to be transmitted via communication lines, and
• communication means associated with the translating means to perform an exchange of measurement data and possible other processing data with a remote central control connected to the control meter by means of a communication line.

The control meter of at least one of the preceding claims, wherein the activation signal commands a remote central control, provided with software for effecting the initiation and interruption of the energy supply, to interrupt the power supply to the customer by opening the power switch (52).