I recently had a 3 phase SMETS2 meter installed - a Kaifa MA329B.
I have solar PV panels on the roof and previously found it useful and easy to look at my ancient meter with a wheel to determine how the PV was doing. i.e. The wheel would obviously be stationary when I wasn’t importing any electricity.
With the new meter it seems not so easy to determine whether I’m importing or exporting at any given moment. I’ve noticed on the right of the LCD screen a “J” symbol with an arrow next to it. The arrow points in one of 8 directions, but I think when I’m steadily importing electricity, the arrow is pointing Right → and when exporting it points Left ← .
Am I correct in the above ? Any idea what the other 6 arrow positions mean ?
Thanks, Robbie.
Best answer by BPLightlog
Updated on 03/04/25 by Abby_OVO
I’ve taken this from another thread which I’ll also link below;
‘J: If on, the meter is connected to the network. If blinking, the meter is joining the network. If the J is replaced by a blinking S, the meter is searching for the network.
->: This can be pointing in a number of directions. Taking @BPLightlog’s reply to a related topic, the arrow is something to do with information about a vector parameter for the supply (active, reactive, ...), and I suspect is not of interest to the home user.’
Not sure about the ‘J’ symbol but the arrow usually indicates a vector parameter relating to the supply. There are active, reactive, capacitive and other components of any supply and this can affect the ‘useful’ power consumption.
Take a look here (Normally only of interest in industrial installations)
Actually see this earlier post on a single phase unit
I’ve taken this from another thread which I’ll also link below;
‘J: If on, the meter is connected to the network. If blinking, the meter is joining the network. If the J is replaced by a blinking S, the meter is searching for the network.
->: This can be pointing in a number of directions. Taking @BPLightlog’s reply to a related topic, the arrow is something to do with information about a vector parameter for the supply (active, reactive, ...), and I suspect is not of interest to the home user.’
Not sure about the ‘J’ symbol but the arrow usually indicates a vector parameter relating to the supply. There are active, reactive, capacitive and other components of any supply and this can affect the ‘useful’ power consumption.
Take a look here (Normally only of interest in industrial installations)
Actually see this earlier post on a single phase unit
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