Logging accumulating Gas usage

Hi All,

I have trouble setting up the right logging method for my smart gas meter. The meter itself is read by a box that produces an xml with an ever incrementing value for the cubic metres used.

The set-up I have now is like this (see attachment)

  • Total pulse count to pulse increment
  • Log to feed
  • kWh to kWh/d

But that does not produce the correct feed data for hourly and daily usage. Can anyone show me a screen dump of their setting in emoncms?

 

pb66's picture

Re: Logging accumulating Gas usage

I don't log gas use so don't have a screenshot for you, but I expect you need to convert the m³ into kwh using the calorific value (found on the bill or website). once you have an ever increasing energy value in kwh's you can use "kwh to kwh/d" for daily total and "kwh to power" for a current rate of use in kw's . something like

​log to feed in m³

x calorific value etc

log to feed in kwh's

kwh to kwh/d

kwh to power

Paul

jonrescca's picture

Re: Logging accumulating Gas usage

Hi Paul,

That did not work out for me. Let me try to explain a bit better.

I had a input that reads the total use of m3 gas every hour, as an two decimal value, like this:

11:50:19    258.79
10:49:29    258,13
09:50:38    257,29
08:49:48    257,29

This is an ever increasing value. Now I want to log the difference every hour, so I can visualize the hourly use, and make also an feed for the daily use. The main objective is show the data in the zoom visualization, so I can see the associated costs.

I tried some input processors already, but I did not get the expected feed values.

lovechoco's picture

Re: Logging accumulating Gas usage

Hello,

I would like made the same think. I have draw a little image. For this moment, I don't have found the good method. In this picture, it's not in minute or hours, but if you can made for a hours, I think it's the same idea.

If it's not possible to do that, maybe I can write this function. I have already look the php code and I think it's not a big job to add this function.

Best regards

Jonathan Dreyer

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