Sigh... Sounds like a supplier who was too engrossed in using the Landis+Gyr E470 then... Which just so happens to be one of the only options that does not support 5-Terminal setups at all (I am not a fan of L+G for many, many reasons). 5-Terminal SMETS2 Smart Meters first launched around late 2019/early 2020-ish once the first models got approved.
I guess I could drop a few hints as to my alter ego though. If you search for terms like L+G E470 or rts meter sunset on Google... Some rather useful information comes back.
Moving from day + night electricity to a single rate
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31-07-21theunknowntech
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01-08-21TWhits
Thank you for confirming and expanding on my more limited understanding. I think they mentioned S2 at the time but may be mistaken. Here are two photos if that helps.Image 2021-07-31 at 16.54.25.jpeg/a>Attachment 137 -
01-08-21TWhits
I sense and share some frustration from you. It is disturbing when your energy supplier confidently gives wrong information or contradict themselves. It makes it harder to make informed decisions and can raise suspicions that it is not just incompetence / ignorance but deliberate.
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02-08-21theunknowntech
Thanks! Yup, that's my arch nemesis right there - an S2 L+G E470 FOUR-Terminal meter. Because Landis+Gyr is pretty much the only manufacturer who doesn't do 5-Terminal options. That's why there's a separate timeswitch/auxiliary relay type device plumbed in as a bodge to make it behave like a 5-terminal unit. But even then, that can and does cause issues with other suppliers. I've seen people ask about that before over on my home forum. It's also one of the reasons I wrote that huge guide about these meters over there.
The problem isn't the spec. It's the meter manufacturer. If an Aclara SGM1416-B had been fitted, then the meter itself would have handled everything internally, making for a much cleaner and far less hacky installation. On the plus side, at least it's not a Frankenstein I guess... -
03-08-21TWhits
Thanks for the explanation. This was fitted by EON who said they had no problem fitting a 5-terminal smart meter! Does this explain why we can't see the night and day usage separately on our display whereas others appear to be able to? So frustrating if this is now limiting our capabilities and our options. At least I think you are saying we have the second generation which should continue to work if we change supplier?