Reduced-crosstalk, integrated low-profile current sensor PCB module

An energy monitoring system comprising:

• a trace current sensor configured to monitor an electrical conductor and on a first printed circuit board (PCB) substrate around an opening of the first PCB substrate, the opening configured to receive a portion of the electrical conductor;
• and
• a signal conditioner configured to condition an output signal from the trace current sensor, the output signal corresponding to a measurement of current on the electrical conductor, the signal conditioner being on the first PCB substrate or a second PCB substrate that is separate from the first PCB substrate,
• wherein the signal conditioner is on the first PCB substrate,
• wherein the opening comprises a plurality of sensor openings each configured to receive an electrical conductor to be monitored, each of the sensor openings having associated therewith a current sensor of the trace current sensor and a conditioner of the signal conditioner on the first PCB substrate, and
• wherein each of the sensor openings comprises a notch on a side of the first PCB substrate.

A flow monitoring device comprising:

• an energy monitoring system comprising:
• a trace current sensor configured to monitor an electrical conductor and on a first printed circuit board (PCB) substrate around an opening of the first PCB substrate, the opening configured to receive a portion of the electrical conductor,
• a signal conditioner configured to condition an output signal from the trace current sensor, the output signal corresponding to a measurement of current on the electrical conductor, the signal conditioner being on the first PCB substrate or a second PCB substrate that is separate from the first PCB substrate, and
• a processor, on the first PCB substrate, configured to measure energy usage of one or more loads connected to the conductor based on the measurement of current,
• wherein the signal conditioner is on the first PCB substrate;
• and
• a device processor configured to:
• receive from the energy monitoring system real-time measurement of energy usage of one or more loads connected to the conductor, and
• manage energy usage through the conductor based on the measurement of energy usage,
• wherein the flow monitoring device comprises a multi-pole miniature circuit breaker having N-poles associated with N line conductors where N is a positive integer greater than 1, the flow monitoring device comprising:
• N energy monitoring systems each of which monitors a respective conductor of the N line conductors, each energy monitoring system having a single trace current sensor.