Troubleshooting Remote Energy Meters

  • Run all CT tests with at least 1 kW of power flowing
  • For each site CT, follow steps to ensure it is in the correct location and orientation:
    • Compare the CT current readings in the Device Setup with a digital clamp-on amp meter
    • Ensure the power flow value displayed for each site CT currently indicates import or export
  • Negative power flow may indicate one of the following:
    • Voltage reference and current reference are not the same phase of the service (e.g. CT is measuring L1 but is plugged in to a CT port with voltage reference of L2
    • CT is installed on the wrong phase
      • Physically move the CT to the correct phase with the label facing the correct direction
    • CT is flipped
      • If the “toward source” CT label is correctly facing the utility meter, but power flow is negative, a voltage-current mismatch is likely

Chime Indication

When powered on, the Neurio W2 will play the following tones to indicate its status in sequential order.

Tone Indication Description
Short Beeps
 Voltage check One beep for each voltage wire that is connected.
Short Chime
 Neurio Wi-Fi network started Neurio has started hosting its own Wi-Fi network. You can join this network to configure Neurio and connect it to your own Wi-Fi network.
Long beep
 Voltage warning (conditional) Indicates that two wires are connected to the same phase.
Long Chimes
 Neurio joined network successfully Neurio successfully joined your Wi-Fi network.
Failing tone
 Neurio failed to join network Neurio was unable to join your Wi-Fi network. Neurio will now start hosting its own Wi-Fi network again to allow you to re-connect to Neurio and re-enter the Wi-Fi credentials.

LED Indication

The LED on the meter housing will also indicate the current state of the meter.

Figure 1. Neurio W2 Meter LED Location
State LED Behavior
Powered Solid Red
Wi-Fi Connected Solid Blue
Normal Operation "Breathing" Blue
Wi-Fi Network Lost Slow Flashing Blue (2s/2s)
Attempting to join Wi-Fi Network Fast Flashing Blue (0.5s/0.5s)
Configuration Network Up (Ready to Pair) Solid Green
Configuration Data Transfer (Pairing in Process) Blinking Purple
Firmware Update in Progress Solid Yellow

Pairing Behavior

How long can a Neurio meter remain powered on to accept pairing requests?

If the meter has never been paired, or if it was previously paired and then unpaired gracefully via the Device Setup, the meter will remain on and accept pairing requests indefinitely. It will reboot every 30 minutes.

If the meter has been previously paired and was not unpaired gracefully via the Device Setup, the pairing process must begin within 1 minute of bootup (audible chime).