Press short code 8, LCD display instruction for tampering status:
1 : terminal cover has been opened before
2 : terminal cover has been opened before when power off
3 : phase reverse
If all these tampering status exist at the same time, then LCD will display these numbers at the
same time.
Successful code:
Good- 01 :key modification, Token 1 decode successfully(if input Token 1 first)
Good- 02 :key modification, Token 2 decode successfully(if input Token 2 first)
Good :set alarming delay successfully
Good :set alarming kWh successfully
If recharge successfully, LCD will display below 3 pages:
Good : TOKEN accept
123 : recharge value this time
1234: total recharge value for this meter
7.4 Overload process
The relay will open when the overload lasts for 45 sec and close after 150 seconds.
If the above situation re-occurs 5 times in 30 minutes, the relay will close again after 4 5 minutes.
If overloads are less than (eg. 4) in 30 minutes, the recovery time of the relay will be 150 seconds,
and this record will be cleared unless repeated in the next 30 minutes. The overload value can be
set through keypad or PC software.
7.5 Relay off when voltage is abnormal:
When the voltage is very low or high, the meter relay will open in order to protect the electric
equipment, the low/ high voltage limit value can be set through keypad or communication, the
permitted setting range is 120-290VAC, and the tolerant range in the meter is 130-253VAC.
Details as below:
1 . Low voltage relay off: when the meter detects the voltage in electricity grid is lower than
