6
Keypad
When the KE3550 was developed, emphasis was placed on fast and easy
operation.
F1 – F4: Menu function buttons.
F1: Help function if provided.
ESC: Similar to a computer, the ESC but-
ton means „undo the last step,“ or Back.
SEL: SELECT button. Use this button for
selecting like an Enter key.
ON / OFF: Button for turning the device
On and O.
Arrow buttons ▲▼◄►
The arrow buttons are for menu scrolling
UP ▲ / DOWN ▼ and LEFT ◄ / RIGHT ►
Keypad: Alphanumeric keypad with 1 – 0, A– Z, special characters.
Text input:
F1: abc → 123 Switch between letters and numbers input. Special charac-
ters can be found under the keys *and #.
*: . - / @ : _ + , [ ] ; = ?
#: # $ % & ‛ ( ) { } ~
F2: Delete the entire entry line with Clr
F3: Delete individual digits with Del
F4: Delete individual digits from right to left with ←
Caution: KE3700 / KE3550 may be operated only with the supplied ori-
ginalKEpowersupplyandneverunderanoutputvoltageover18V/DC!
Damage to the device resulting from inobservance will only be re-
paired for a fee!
Generally the PSU has to get plugged into the device rst
and then into the wall outlet.
Note: Please, fully charge the battery before the rst use!
The charging is completed when the charging LED changes from
orange to green. To check the charge indicator after the initial char-
ging, turn o the device and then turn it on again with the AC adapter
connected for about 1 minute. During this time, the battery indicator
will be calibrated and now displays the correct value.
