Expansion module for modular meter

A removable expansion module for use in an electronic utility meter, the electronic utility meter including a sensor module and a measurement module, the sensor module including voltage and current sensors operable to receive voltage and current signals from the electrical system and generate measurement signals therefrom, the measurement module including a measurement circuit operable to receive measurement signals and generate energy consumption data therefrom, the measurement module further including a device for communicating information relating to the energy consumption data, the removable expansion module including:

• a first interface configured to be coupled to the sensor module to receive measurement signals therefrom;
• and
• a second interface configured to be coupled to the measurement circuit to provide measurement signals thereto.

A method of servicing an electronic utility meter, said revenue meter operably connected to an electrical system of a facility for the purpose of measuring a power consumption of the facility, said method comprising:

• a) removing a measurement module of the electronic utility meter from a sensor module of the electronic utility meter, said sensor module including voltage and current sensors, said voltage and current sensors operable to receive voltage and current signals from the electrical system and generate measurement signals therefrom, wherein said measurement module includes a measurement circuit operable to receive measurement signals and generate energy consumption data therefrom, said measurement module including a display for displaying information relating to the energy consumption data;
• and
• b) connecting a removable expansion module between the measurement module and the sensor module, the removable expansion module operably coupled to receive the measurement signals and provide the measurement signals to the measurement circuit.