What do I have to do if I do not use the Primera-Line energy meter PM 231 E for a longer period of time? February 09, 2023 14:53 Updated During prolonged periods of non-use, remove the batteries from the energy meter to prevent leakage. Related articles What value do I have to enter for the electricity price in the Primera-Line energy cost meter PM 231 E? Can the data of the Primera-Line energy meter PM 231 E be read out? What are the measurement and current consumption characteristics of the Primera-Line PM 231 E energy meter? Can I continue to use the power strip if the switch's glow lamp flickers or stops glowing? Why does my LED lamp/spotlight continue to glow/light after being switched off?