Tek-Trol Tek-LCD 7802A, Instruction Manual, Page: 29 / 43

If the correct six-digit password is entered, the meter displays the message
UNLOCKD
(unlocked) and
the protection is disabled until a new password is programmed.
If the password entered is incorrect, the meter displays the message
LOCKED
for about two
seconds, and then it returns to Run Mode. To try again, press Enter while the Locked message is
displayed.
4.4.14 Service Feature (
SERVICE
)
Select
SERVICE
from the main menu to temporarily disable the through-window buttons to
prevent inadvertent use. Buttons will automatically resume operation after 60 seconds. The
display blinks the message
SERVICE
during this period. This should be used when cleaning the
window and when installing or removing the cover while power is applied (in a safe area only).
The service menu is not shown when the through-window buttons are disabled using the slide
switch located on the connector board.
Did you forget the password?
The password may be disabled by entering a master password. If you are authorized to
make changes, enter the master password 50865 to unlock the meter.