diff --git a/Power-monitoring-calibration.md b/Power-monitoring-calibration.md index 6a596bc0..eda1104c 100644 --- a/Power-monitoring-calibration.md +++ b/Power-monitoring-calibration.md @@ -1,18 +1,24 @@ You might need to calibrate your power monitoring device as correct measurements are influenced by hardware and timing differences. -For proper calibration you will need: +## What you need - your power monitoring capable device flashed with Tasmota and configured to a correct module/template that supports power monitoring - calibrated multimeter (AC capable) - incandescent light bulb (we use a 60 W one in the example) -- (optional) power meter (aka Kill A Watt) +- *(optional)* calibrated power meter (aka Kill A Watt) -1. Connect the light bulb to your device. +### Step 1 +Connect the light bulb to your device. * *Optional: Plug your device into the power meter* -2. Open the web UI for your device in one window and another window to that same devices Console -3. Turn power on and wait a few seconds for the power metering to settle on a stable power reading -4. Verify the **Power** reading in the web UI (optionally with the power meter as well) for the expected 60 W and if needed change the power offset with command:
    `PowerSet 60.0`
    *(if you're using something with different power draw enter the appropriate number)* -5. Verify the **Voltage** reading with the multimeter and if needed change the voltage offset in V with command:
    `VoltageSet 235.5`
    *(235.5 would be replaced with your measurement which varies depending on the electrical standards and your electrical grid)* -6. Verify the **Current** reading by calculating current value (amperage) using formula **P(W)/I(V)=I(A)** and if needed change the current offset in *mA* (mA=A\*1000) with command:
    `CurrentSet 254.777`
    *(instead of 254.777 enter your calculation value of ***A multiplied by 1000***)* + +Turn power on and wait a few seconds for the power metering to settle on a stable power reading +### Step 2 +Open the web UI to your device in one window and open another window to that same devices Console +### Step 3 +Verify the **Power** reading in the web UI (optionally with the power meter as well) for the expected 60 W and if needed change the power offset with command:
    `PowerSet 60.0`
    *(if you're using something with different power draw enter the appropriate number)* +### Step 4 +Verify the **Voltage** reading with the multimeter and if needed change the voltage offset in V with command:
    `VoltageSet 235.5`
    *(235.5 would be replaced with your measurement which varies depending on the electrical standards and your electrical grid)* +### Step 5 +Verify the **Current** reading by calculating current value (amperage) using formula **P(W)/I(V)=I(A)** and if needed change the current offset in *mA* (mA=A\*1000) with command:
    `CurrentSet 254.777`
    *(instead of 254.777 enter your calculation value of ***A multiplied by 1000***)* Current calculation: ``` @@ -22,3 +28,5 @@ W(atts)/(V)oltage=(A)mperes watts/volts *1000=CurrentSet value (60.0/235.5)*1000=254.777 ``` +### End +Congratulations!!! Your device can now reliably monitor power consumption! \ No newline at end of file