CO boiler operation recorder - I am looking for the above mentioned device.

Hello,
Colleagues, please help - has anyone come across something like a CO boiler logger - I'm just concerned with monitoring the frequency of feeder and blower activation. So that this can be visualised in the form of a graphical chart.
Is it possible to monitor the two 230 V signals (on/off) and save them e.g. on an SD card?
If there is no such "ready-made" solution, can this be done on an ... Arduino.
To be honest, I used to play with electronics in the full sense of the word when I was in technical school, and then a little after the army, about a quarter of a century ago.
I discovered Arduino when my daughter had classes at the Polytechnic and something had to be done...
I'll put something together and solder something ready made, so I'm more of a complete amateur and I'm looking for simple answers.
Regards.

If the powers of the supply and feeder motors are quite different, I would use a power meter (e.g.: Voltcraft Energy Logger 4000). A recording period of approximately 3msc. Then the data can be copied to an SD card and viewed as a graph or in an Excel file.

MARCIN.SLASK wrote:

If the powers of the blower and feeder motors are quite different, I would use a power meter

As far as I can tell, the powers of the blower and feeder motors are the same order of magnitude (something around 100 watts) - so the possible power difference between the two will be small.

http://www.kotrem.pl/pdf/KWMP2%20-%20karta%20katalogowa.pdf
fan power 80-200W, feeder power 250-550W.
A 230V voltage sensor alone would be sufficient

Products can be used: Link .
Like doing a reading every 30s, it would last about 4 msc. But cheap it won't be.
It would be cheaper to give a cheap laptop, make an input interface (just a two-channel logic state readout) and some simple application that would write the logs to a file.

It is possible to do something like this on an Arduino in a simple way.

Markov65 wrote:

A 230V voltage sensor alone would be sufficient

In this role it could be the most ordinary relay with a 230 VAC coil wired in parallel to the motor. Or a suitable circuit on an optocoupler (it is important that the sensor provides galvanic separation). The relay contacts would feed the appropriate signal to the uP input - and the processor itself would count the duration of the pulse. It would then record this on a memory card.
Hardware-wise, this circuit would be simple - it would be more difficult to write the program. Unless, of course, you have access to a clever programmer, in which case the whole circuit will not be too difficult.

For the collection itself the Arduino is sufficient. Instead of writing a program, it can also be done on the R-PI, with some monitoring system (e.g. Zabbix) for data collection and visualisation. For the operation detection, you can use the circuits described above (even with a relay that will short-circuit the corresponding GPIO of the R-PI) or e.g. an AC current flow sensor like in a clamp meter with a corresponding circuit to control the GPIO. With this approach, you don't need to bury the controller electronics almost completely (except for taking out the 2 wires to the sensors).

Maybe a plc with a small hmi up to £1000 and problem solved.

Check out the PVmonitor.co.uk website. You can create an account there and send load temperature data via LanKontroler 2.0. Creating and maintaining an account is free of charge. You can view current and historical data as well as statistical graphs etc.
See my graphs "ostanislaw" http://pvmonitor.pl/user.php?idinst=10020 The second link shows data from the boiler room http://pvmonitor.pl/user_pc.php?r=2&idinst=10020
The cost of the equipment about 300zł and the possibilities are great. If you need more data ask.
kind regards
ostanislaw

Hi. I've come up with the same idea, I've been looking for a similar program on an arduino for a while, as I've been tinkering with something on an arduino but programmer I won't call myself.... I have a schematic of my controller (pioneer electronics 310) and I can hook up to the feeder switching output and that's it. I want the controller to count the time the feeder is switched on and display it in various intervals, e.g. for 24 hours or for 7 days, and on the basis of this, by trial and error, I will set the amount of burnt pellets and I will attach information about an empty hopper. Does anyone have a simple program I could use? Thank you and I will pass on my findings. Best regards

RPI and Domoticz can be used. Domoticz will draw the graph itself once you supply it with data.