Any idea how to set 19 to unlock? I managed to pull up the menu by using the check botton (#8 from the pic below), but unable to change the setting:
1) press Check selector + key swith from position 0 to 1
2) "Test NR-1" is displayed
3) press Check selector to go down to "Test NR-19"
4) press Trip Reset, displays "Lock: ON"
5) press Trip Reset again, changes to "Lock: 00"
5.1) press Trip Reset again, changes to "Lock: 01"
5.2) repeat 5.1... and it goes all the way to "Lock: 45"
There's no unlock option
