User's Manual

October 13, 2014
Using Terminal UltraLight CONFIDENTIAL 8
3 USING THE KEYPAD
Terminal UltraLight's capacitive touch keypad does not require finger pressure — a light touch is enough.
(The terminal may have been configured to emit a short beep to signal when it registers a touch.) (See
.)Terminal UltraLight beep and LED code sequences
NOTE: Do not touch the keypad when the terminal is starting up. The keypad is calibrated every time
the terminal starts up --- essential for proper operation — and touching the keypad during startup interferes
with this process.
To use the keypad:
Use fingerpads — not fingertips. Fingerpads cover a larger area, enabling better detection by the
terminal.
Use a light touch.
Use only fingers — not instruments such as nails, pens, or screwdrivers.
Do not wear gloves (other than latex gloves such as those used in the medical or food industries).
The keypad may become more sensitive or less sensitive after a long period of use or when electrostatic or
electromagnetic properties in the surrounding area change. If this occurs, reboot the terminal or turn the
power off/on to automatically recalibrate the keypad.