So for the second time in three days the OWL CM160 unit has stopped recording any power. Thankfully this is not the fault of the system, more an issue with the OWL.
I've changed the battery in the sender unit, and reestablished the connection, only for it to cut out again a few days later. I shall have to have a go under the stairs again to try and work our what is happening - but without waking everybody up.
I've also noted another potential issue with the unit - it tends to stop recording internally for short periods. It still displays a reading, but sometimes when you come back to it, it does not seem to have advanced as far as one would expect. So on a bright day when it's showing in excess of 2kW you can come back a couple of hours later to kind the cumulative count has not moved as far along as you might think. I thought it was just me, but a recent check of the meter suggests that I'm 40kWh behind what the meter under the stairs says, and that's accumulated over 6-8 weeks since the last time I aligned the readings by hand. I already have an error correction built in to the readings spreadsheet, so I don't think that that's the cause, but I suppose I shouldn't complain too much if the difference is in my favour.
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