Technical data

Code lock
39
Press the select button next to “Lock device”. The display resumes the initial state. A small key symbol indi-
cates that the device is locked.
or
Press the select button next to “Change PIN”. Your Retell 340 asks you to enter a new PIN.
Use the arrow buttons to enter a new PIN. The current entry is shown in the display.
To complete your entry, press stop several times. The new PIN is now valid. The display resumes the initial state.
Unlock the device
Use the arrow buttons to enter the PIN. The display shows the current entry.
After having entered the PIN, press the select button
next to PIN.
The small key symbol is no longer shown in the display. The
device can now be operated again.