How to start ?

Hello,

I ordered my openenergymonitor setup a long while ago and never succeeded to understand how to use it and start monitoring my power consumption.

 

Could someone please help me out ?

These are the data that I succeed to retrieve, What kind of feeds am I supposed to build? I'd like to have Kw in live: http://imgur.com/gNyuPc7

I need to mention that I wrapped my sensors around the red wire only ...

Thank you for your help,

it is going to be much appreciated.

 

Julien

TrystanLea's picture

Re: How to start ?

Hello Julien,

Looks like your almost there, the inputs that you see in emontx are as follows:

10:1 is CT1 Power

10:2 is CT2 Power

10:3 is CT3 Power

10:4 is CT4 Power

10:5 is Mains Voltage

10:6 is Temperature

It looks like your CT sensor for CT1 is the wrong way around as its reading negative, you might want to turn that around. Then I would start by adding a 'log to feed' input process for each of the inputs you wish to record. There more on setting this up in the EmonTx v3 quick start guide here http://openenergymonitor.org/emon/modules/emonTxV3

Good work so far!

rapidos's picture

Re: How to start ?

Hello TrystanLea,

thank you very much for your kind response.

I did read somewhere about the inputs (even though I read that 5 should be temperature ...)

It also took me while to figure out that my Port 2 is not working ...

 

Anyways, I now have a value that seems legit: 350 with Tv, one light bulb, laptop charging and a small appliance runnig ... Yay!

 

Now, I'd like to move one step further and send all those nice inputs into a feed in order to be able to collect and visualize them.

I selected Power to kWh -> Create new feed > Main > FIxed interval no avering -> 10 seconds

This is the tricky part to me, I cannot find a valid combination that produces a valid graph, when I go to visualisation, it looks like it's summing up all the values and keeps going up minutes after minutes ... Any idea ?

THank you for your time,
it's really appreciated !

rapidos's picture

Re: How to start ?

OK,
I finally started to read over every start guide and think I've got something interesting on the track:

http://imgur.com/nf3MZFd

This way I have instant kW consumption and also day after day consumption. Am I right ?

Thanks for your time,
julien

pb66's picture

Re: How to start ?

Hi Julien,

Using "Power to kWh -> Create new feed > Main > FIxed interval no avering -> 10 seconds" will, as you see, convert the power value to energy used and keep accumulating. You need to log the power before the "Power to kWh" for example

Input 1 =     Log to feed "CT1 PowerNow"   ->   kWh to kwh/d "CT1 EnergyToday"    ->   Power to kWh "CT1 EnergyTotal" etc

Usually only the values that need scaling eg voltage would have processes before being initially logged eg

Input 5 =    x "0.01"   ->    log to feed "VoltsAC"

Paul

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