mirrors
/
Tasmota
mirror of https://github.com/arendst/Tasmota.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Updated Power monitoring calibration (markdown)

blakadder 2019-02-22 22:37:01 +01:00
parent eadc522b75
commit a9c1eb48ee
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Power-monitoring-calibration.md

@ -4,13 +4,14 @@ This is how to do it:
You will need a: You will need a:
- calibrated multimeter (AC capable) - calibrated multimeter (AC capable)
- incandescent light bulb (we use a 60W one in the example) - incandescent light bulb (we use a 60 W one in the example)
- (optional) power meter (aka Kill A Watt) - (optional) power meter (aka Kill A Watt)
1. Connect the light bulb to your device. (Optional: plug your device into the power meter) 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 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 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 (optinal: and with the power meter) for the expected 60W 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)* 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: <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)*
5. Verify the **Voltage** reading with the multimeter and if needed change the voltage offset in V with command: <BR>&nbsp;&nbsp;&nbsp;&nbsp;`VoltageSet 235.5`<BR>&nbsp;&nbsp;&nbsp;&nbsp;*(235.5 would be replaced with your measurement which varies depending on the electrical standards and your electrical grid)* 5. Verify the **Voltage** reading with the multimeter and if needed change the voltage offset in V with command: <BR>&nbsp;&nbsp;&nbsp;&nbsp;`VoltageSet 235.5`<BR>&nbsp;&nbsp;&nbsp;&nbsp;*(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<sub>(W)</sub>/I<sub>(V)</sub>=I<sub>(A)</sub>** and if needed change the current offset in *mA* (mA=A\*1000) with command:<BR>&nbsp;&nbsp;&nbsp;&nbsp;`CurrentSet 254.777`<BR>&nbsp;&nbsp;&nbsp;&nbsp;*(instead of 254.777 enter your calculation value of ***A multiplied by 1000***)* 6. Verify the **Current** reading by calculating current value (amperage) using formula **P<sub>(W)</sub>/I<sub>(V)</sub>=I<sub>(A)</sub>** and if needed change the current offset in *mA* (mA=A\*1000) with command:<BR>&nbsp;&nbsp;&nbsp;&nbsp;`CurrentSet 254.777`<BR>&nbsp;&nbsp;&nbsp;&nbsp;*(instead of 254.777 enter your calculation value of ***A multiplied by 1000***)*