ITW Dynatec c. 2004
DYNAMINI ASU Manual #20-25
Page 5-3
Revised 1/05
Keypad Locking
It is possible to lock or unlock the controller in order to restrict programming changes. To change the
code which is necessary to over-ride or unlock the keypad lock, see Service Functions.
Note: the ASU is shipped with de-activated keypad lock. If the keypad lock must be used, an access
code must be programmed prior to locking the keypad.
Locking or Unlocking the Keypad
Important Note: the controller must be in the Temperature Display mode in order to allow
locking or unlocking of the keypad.
&
Press the Down Scroll key, then hold and press the
Service icon key.
You will see “Loc” to indicate that the Keypad Lock is
active.
Press the Down Scroll key, then hold and press the
Service icon key.
You will see “Cod” to indicate that the access code is
required.
Enter your access code by scrolling up or down. Default
code = “ -- -- --”.
Confirm your code input by pressing Tank key.
&
or
Locking the Keypad
Unlocking the Keypad
Notes:
1. Once the keypad lock is active, unauthorized programming is not possible, even after turning the
ASU OFF, then back ON again.
2. Once the keypad lock is unlocked, programming is possible until the ASU is turned OFF, then back
ON or the keypad is locked again.
3. If the keypad must be unlocked permanently, the access code must must be de-activated in the Ser-
vice Functions.
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