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Gelidus Research Split Single Phase Power Meter 1

Gelidus Research Split Single Phase Power Meter 1

Device Type: sensor
Electrical Standard: us
Board: esp8266

Product Image

The PM1 board runs on an ESP12F WIFI module and is powered with 115-240V AC using an integrated isolation transformer.

Voltage

The PM1 integrates an ATM90E32 IC and is configured to measure single split phase AC lines and up to 2 AC voltages. The default configuration isolates one AC phase voltage to the ATM90E32 chip. An optional 6V AC isolation transfomer can be used to monitor both Split AC line voltages.

The Gelidus Split Single Phase Power Meter https://www.gelidus.ca/product/esphome-power-meter-1 is ideal for most home power distributions in North America.

This sensor is pre calibrated for the SCT013-100-50ma or SCT023-200-100ma current transformers and the integrated AC mains isolation transformer.

Note: The PM1 and two 100A/50ma SCT013's supports any 200A service, the SCT023 supports larger conductors and up to a 400A service.

Current

Calibrations for the Split Single Phase Energy Meter require gain_pga at 2X

  • 100A/50mA SCT-013
  • 200A/100mA SCT-023

A typical current_cal for the 100A/50ma SCT013 and the 200A/100ma SCT023 is ~15270.

There are some variables in the manufacturing of CT's, if the highest level precision is desired then the current should be calculated and adjusted and the use of an option AC line transfomer is nessesary.

Formula: Amps Measured / Amps Reported * current_cal value in the running yaml file = adjusted value to use. This also applies to AC voltages, however it should not normally be required.

Active Energy

The ATM90E32 chip has a high-precision built-in ability to count the amount of consumed energy on a per-current transformer basis. For each current transformer both the Forward and Reverse active energy is counted in watt-hours. Forward Active Energy is used to count consumed energy, whereas Reverse Active Energy is used to count exported energy (e.g. with solar pv installations). The counters are reset every time a given active energy value is read from the ATM90E32 chip.

Example

sensor:
    - platform: atm90e32
      cs_pin: 5
      phase_a:
        forward_active_energy:
          name: ${disp_name} ct1 FAWattHours
          id: ct1FAWattHours
          state_topic: ${disp_name}/ct1/forward_active_energy
        reverse_active_energy:
          name: ${disp_name} ct1 RAWattHours
          id: ct1RAWattHours
          state_topic: ${disp_name}/ct1/reverse_active_energy

Default config

web_server:
    port: 80


  spi:
    clk_pin: 14
    miso_pin: 12
    mosi_pin: 13


  substitutions:
  # Change the disp_name to something you want
    disp_name: PM1
  # Interval of how often the power is updated
    update_time: 15s
  # Current transformer calibrations:
  # 100A/50mA SCT-013 with 2x gain: 15270
  # 200A/100mA SCT-023 with 2x gain: 15270
  # Integrated Block AVB 2,0/2/6 Transformer: 4425
    current_cal: '15270'
    voltage_cal: '4425'


  sensor:
    - platform: wifi_signal
      name: ${disp_name} WiFi Signal
      update_interval: 15s
    - platform: atm90e32
      cs_pin: 5
      phase_a:
        voltage:
          name: ${disp_name} Volts
          accuracy_decimals: 1
        current:
          name: ${disp_name} CT1 Amps
          id: "ct1Amps"
        power:
          name: ${disp_name} CT1 Watts
          accuracy_decimals: 1
          id: "ct1Watts"
        gain_voltage: ${voltage_cal}
        gain_ct: ${current_cal}
      phase_c:
        current:
          name: ${disp_name} CT2 Amps
          id: "ct2Amps"
        power:
          name: ${disp_name} CT2 Watts
          accuracy_decimals: 1
          id: "ct2Watts"
        gain_voltage: ${voltage_cal}
        gain_ct: ${current_cal}
      frequency:
        name: ${disp_name} Freq
      line_frequency: 60Hz
      gain_pga: 2x
      chip_temperature:
        name: ${disp_name} IC Temperature
      update_interval: ${update_time}
    - platform: template
      name: ${disp_name} Total Amps
      id: "totalAmps"
      lambda: return id(ct1Amps).state + id(ct2Amps).state;
      accuracy_decimals: 2
      unit_of_measurement: A
      update_interval: ${update_time}
      device_class: current
    - platform: template
      name: ${disp_name} Total Watts
      id: "totalWatts"
      lambda: return id(ct1Watts).state + id(ct2Watts).state;
      accuracy_decimals: 0
      unit_of_measurement: W
      device_class: power
      update_interval: ${update_time}
    - platform: total_daily_energy
      name: ${disp_name} Total kWh
      power_id: totalWatts
      filters:
        - multiply: 0.001
      unit_of_measurement: kWh
      device_class: energy
      state_class: total_increasing
  time:
    - platform: sntp
      id: sntp_time
      servers: pool.ntp.org


  switch:
    - platform: restart
      name: ${disp_name} Restart
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