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SEP LEM012SJ 2015 V01
1.9 Operating
Working indication
There is a POWER LED which is used as indicating power in the front panel of SEP
LEM012SJ When the meter works normally, this LED will light-on. When the meter is
going wrong or no power supply, the LED will turn off.
Consumption indication
There is a PULSE LED which is used as indicating power consumption in the front panel
of LEM012SJ. When consumption happens, the LED will flash. The more quickly LED
flash, the more consumption there is. For this LED, the flash rate is 500 impulses per
kWh (2.0Wh/imp).
Reading the meter
LEM012SJ is equipped with a white backlight LCD display. During the normal working
hours, the backlight will be on all the time. LCD display will show the following energy
data and indication message.
a) Current total energy
When the meter is in normal working, it will display only 7 +1 energy data with.
The unit is kWh. These data cannot be reset to zero by the user. Example: Total
energy is 4574899.1 kWh.
b) Indication for reverse use
When the meter is wrong connected with the incoming line and the outgoing line,
reversed. Every 3 seconds the LCD display will show HELP 1 to indicate the wrong
connection.