Home digital electricity meter

HEM is electronic electricity meter with alpha numeric LCD display and the following 

features:



	- constatntly measures, monitoring and archive the electricity consumation

	- three time zones for electricity consumption monitoring

	- displays: voltage, current, cos(f), active power, reactive power

	- implemented real-time clock with relays for switching loads

	- electricity energy limit can be programmed and alarm output

	- RS-232 interface for connection to host computer

	- EEPROM memory

	- archives the energy consumation for the last month hour by hour

	- maximum operating range 300 V / 100 A

	- operating temperature -25 + 85 C