Model 190 Installation, Technical and Operation
8400-M022-O1 Rev J
8.10 Touch Key Lock Out Function
The 190 firmware provides a means for locking out the capacitive touch
keys. When the keys are locked out, any activation of the keys, whether
intentional or accidental, will be ignored.
NOTE: This function is available in firmware version 1.0.13 or newer.
8.10.1 Lock Out the Keys
1. To lock out the keys, touch the ON/OFF, PRINT, Fn, and UNITS keys
sequentially in that order within approximately four seconds.
2. The display will briefly show LoCd.
3. If any key is touched, all of the key LED’s will flash briefly and the
touch will be ignored. Note that it is not possible to turn the indicator
off with the ON/OFF key when the keys are locked out.
8.10.2 Re-Enable the Locked Out Keys
1. To re-enable the keys, touch the ON/OFF, PRINT, Fn, and UNITS
keys sequentially in that order within approximately four seconds.
2. The display will briefly show UnLoCd.
3. Normal touch key operation will resume.
NOTE: If power is lost when the keys are locked out, the keys will not be
locked out when power is restored. The key sequence for locking out the
keys will have to be entered again to lock out the keys.
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