Configuration : CircuitSetup 6ch Energy Meter running ESPHome

ESPHome
1

Hi folks,

Thanks @CircuitSetup for this great product and help with questions in this forum. I recently received the board and I am in the process of setting it up. I read the documentation and have a few additional question.

I purchased this AC Transformer(12V) and use this configuration

  1. Do I need to change anything in the config YAML file to use the 12V (instead of 9V) AC transformer? I only see option to do it later in EMONESP - want to double confirm
  2. I purchased a few 30A , 50A and two 100A 1V CT Clamp. I could see the 30A and 50A options in the substitution section , but I don’t see any option for 100AM 1V - is it supported by this board?
  3. Since I have different type of CT Clamp , do I need to add new lines in the YAML file for each one and change CT1 and CT2 configuration?
  4. I want to make sure I install the CT clamp in the correct orientation - the arrow should point to the opposite side of the electric panel? basically the red cable and arrow toward the outlet that power my dryer (for example)?
2

Sorry I didn’t see this sooner. I think I answered some of your questions previously, but I’ll answer them here too in case others have the same questions.

  1. Yes, gain_voltage (or voltage_cal) in the config needs to be changed. I would recommend calibrating the meter according to the procedure here
    VOLTAGE_GAIN is what the value currently is for gain_voltage in your config, which should be 7305.
    Either way, you should end up with a value close to 9500

  2. For all CTs that output a voltage, you need to cut the corresponding jumper on the back of the board to disable the on-board burden resistor. The 100A will work, it just needs to be calibrated. The value should be around 30,800

  3. Yes, current_cal just substitutes gain_ct, so you can either change to a different substitution for each type of CT or fill in gain_ct for each phase directly.

  4. The direction of the CT depends if the voltage you’re measuring is on the same phase as the circuit’s current you’re measuring. If you get a negative value, flip the CT around (unless you’re seeing outgoing power from a solar inverter). For 2 pole circuits, you can have 1 CT with both wires going through it in opposite directions, or 2 CTs on each wire with the CT arrow pointing in opposite directions.