Display shows "ERR CH
7922 and 7932 use an EEPROM to save the programming and count values. This is done by monitoring the internal power supply of the meter. If the external supply voltage is switched off, the counter's...
7922 and 7932 use an EEPROM to save the programming and count values. This is done by monitoring the internal power supply of the meter. If the external supply voltage is switched off, the counter's...