10
© Copyright 2011, Sargent & Greenleaf, Inc.
Model 6120 —Motorized Electronic Combination Lock
Operating Instructions
mrc—mAnAgement reset code
If a management reset code is used, it must be programmed into the
lock before the master code is changed for the first time. Once the
master code is changed, the lock cannot accept an MRC. Conversely,
once an MRC is programmed into a lock, it is always present. It
cannot be deleted or changed.
Some 6120 locks have factory installed management reset codes,
You cannot install a new MRC to replace an existing one.
The management reset code is used to regain control of a lock when
its master code is lost. When the MRC is employed, it deletes all
codes and changes the master code back to 1 2 3 4 5 6 #. See the
technical bulletin on page 32 for detailed information on how to set
and use a management reset code.
About chAnging codes
Always keep the safe door open when changing codes and
making other programming changes.
All code changing procedures begin by pressing SG
*
(the same
as 74
*
), followed by the existing six-digit master code and #.
The lock immediately chirps five times ( ). If the lock emits
a series of closely spaced chirps (nearly a continuous tone)
you’ve made a mistake and must start again.
to chAnge the mAster code (code #1)
Press SG
*
(___) #
1
*
(___) #
(___) #
Whenever # is pressed, the lock chirps to acknowledge the entry.
Wait for the chirps before proceeding. If a long series of closely
spaced chirps (almost a continuous tone) sounds when # is
pressed, the new master code will not be accepted—the old
code is retained.
to enter or chAnge A user code (codes #2-#9)
Press SG
*
(___) #
(user I.D.)
*
(___) #
(___) #
Whenever # is pressed, the lock chirps to acknowledge the entry.
Wait for the chirps before proceeding. If a long series of closely
spaced chirps (almost a continuous tone) sounds when # is
pressed, the new code will not be accepted. Any existing user
code remains.
For instance, if you want to enable the #3 user code to open
the lock with a code of 4 4 6 6 3 3, you will use the following
procedure.
Press SG
*
(____) #
3
*
446633 #
446633 #
This same procedure would change any existing #3 user code to
4-4-6-6-3-3.
to delete A user code
You may find that a particular user code which you have enabled
is no longer needed. It is a good security policy to remove any
unneeded codes. To do so, follow this procedure.
Press SG
*
(___) #
(user I.D. 2 through 9)
*
#
#
Whenever # is pressed, the lock chirps to acknowledge the entry.
Wait for the chirps before proceeding. If a long series of closely
spaced chirps (almost a continuous tone) sounds when # is
pressed, the user code will not be deleted.
In this procedure, the Model 6120 lock will not allow you to
inadvertently remove the master code.
security Advisory
If your lock is used many times a day (50 or more openings
daily), it is advisable to use as many different keys as possible
in your code number. Avoid using a key more than once whenever
possible. Check the keypad frequently for visible wear which
indicates which keys are being pressed for code entry. Change
the code to use different keys when wear is evident. If necessary,
have a qualified service technician replace the keypad.
existing master code new master code new master code(7 4)
new user code new user codeexisting master code(7 4)
new user code new user code
existing master code(7 4)
existing master code(7 4)
(4 pages)
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