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Updated Power monitoring calibration (markdown)

blakadder 2019-02-22 23:29:27 +01:00
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Power-monitoring-calibration.md

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You might need to calibrate your power monitoring device as correct measurements are influenced by hardware and timing differences. You might need to calibrate your power monitoring device as correct measurements are influenced by hardware and timing differences.
## What you need ## What you need
- your power monitoring capable device flashed with Tasmota and configured to a correct module/template that supports power monitoring - Your power monitoring capable device flashed with Tasmota and configured to a correct module/template that supports power monitoring
- calibrated multimeter (AC capable) - Calibrated multimeter (AC capable)
- A resistive load device (we use a 60 W incandescent light bulb in the example) - A resistive load device (we use a 60 W incandescent light bulb in the example)
- resistive load device is any device which draws a constant amount of power such as an incadescent or halogen light bulb (best choice since their power draw is declared on them), electric kettle or electric heater can also be used but it is recommended to use a power meter in conjunction since the load could vary - Resistive load device is any device which draws a constant amount of power such as an incadescent or halogen light bulb (best choice since their power draw is declared on them). Electric kettle or electric heater can also be used but it is recommended to use a power meter in conjunction since the load *could* vary
- **Do not** use switch mode driven devices such as LED lamps, computer equipment or inductive/capacitive devices such as motors - **Do not** use switch mode driven devices such as LED lamps, computer equipment or inductive/capacitive devices such as motors!
- *(optional)* calibrated power meter (aka Kill A Watt) - *(optional)* Calibrated power meter (aka Kill A Watt)
### Step 1 ### Step 1
Connect the light bulb to your device. Connect the light bulb to your device.
* *Optional: Plug your device into the power meter* * *Optional: Plug your device into the power meter*
Turn power on and wait a few seconds for the power metering to settle on a stable power reading Turn power on and wait a few seconds for the power metering to settle on a stable power reading.
### Step 2 ### Step 2
Open the web UI to your device in one window and open another window to that same devices Console Open the web UI to your device in one window and open another window to that same devices Console.
### Step 3 ### 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: <BR>&nbsp;&nbsp;&nbsp;&nbsp;`PowerSet 60.0`<BR>&nbsp;&nbsp;&nbsp;&nbsp;*(if you're using something with different power draw enter the appropriate number)* 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: <BR>&nbsp;&nbsp;&nbsp;&nbsp;`PowerSet 60.0`<BR>&nbsp;&nbsp;&nbsp;&nbsp;*(if you're using something with different power draw enter the appropriate number)*
### Step 4 ### Step 4