Corax3 Meter: Triangle Symbol with Exclamation Mark, Reasons & Faults - JM Tronik Comparison

I installed a new Corax 3 meter yesterday, it seems to be working properly, I'm worried only that the exclamation mark in the triangle is displayed on the display. The previous counter JM Tronik began to delay five hours and switched tariffs badly. Hence the question what this symbol means and what the reasons may be for it to appear. Can a house installation be a fault? Unfortunately, there are no instructions on the web for this meter or an explanation of this particular symbol. Thank you in advance for your response.

andrzejp75 wrote:

the symbol of an exclamation point in the triangle on the display

In which place

Right next to the number showing the tariff.

At the bottom you have a telephone for technical service http://www.apator.com/en/kontakt/kontakt-handlowy/pomiar-energii Why should you ask some forums how you can ask the manufacturer.

This is Corax 3 '(prim), an alternative name for the Norax 3 counter.
Interestingly, in catalog card in the pictorial picture this icon appears.
I suppose it is a software error indicator, the presence of a magnetic field or the opening of the terminal cover. Probably the last one and means that the meter was under voltage with the cover removed (normal during assembly), but the installer did not delete the error.
Instead of the manufacturer, I suggest contacting an energy supplier.