What is the internal clock accuracy of the Norax 3 meter?
The Norax 3 has an internal clock with an accuracy of not lower than 0.5 seconds per 24 hours at 23°C. This clock supports time-of-use tariff functionality. (Page 2)
From the official Apator HM8930 7197 Norax 3 Electricity Meter manual, page 2
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