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CHANGING THE MASTER CODE 

(Code length: 3 - 8 digit code)

 

Always perform this operation with the door open. 
Test the new code several times before closing the door. 

1.  Input:        (lock will beep twice) 
2.  Input: 8 - 8 - 8 - #  (lock will beep twice) 
3.  Input: Current Master Code - #  (lock will beep twice) 
4.  Input: New Master Code - #  (lock will beep twice) 
5.  Re-Input: New Master Code - #  (light stays green for three (3)     

seconds) 

• 

Example: 

- 8 - 8 - 8 - # - Master Code - # - New Master Code 

- # - New Master Code - #. 

• 

Unsuccessful Code Change: five beeps (the old code is still 
valid), repeat steps 1 - 5. 

 

 

ACTIVATE USER CODES 

(Code length: 3 - 8 digit code) 

1.  Input:  

(lock will beep twice) 

2.  Input: 3 - 3 - 3 - #  (lock will beep twice) 
3.  Input: Current Master Code - #  (lock will beep twice) 
4.  Input: (

User #

) - #

  

(

User #: 

Specify which user you would like to 

activate: 1, 2, 3, 4 or 5) 

5.  Input: New User Code - #  (lock will beep twice) 
6.  Re-Input: New User Code - #  (light stays green for three (3)     

seconds) 

• 

Example: 

- 3 - 3 - 3 - # - Master Code - # - 4 - # - New User 

Code - # - New User Code - #.                                                                 

(This will activate User 4)

 

• 

Unsuccessful Code Activation: five beeps, repeat steps 1 - 6.

 

 

CHANGE USER CODES 

(Code length: 3 - 8 digit code) 

1.  Input:        (lock will beep twice) 
2.  Input: 4 - 4 - 4 - #  (lock will beep twice) 
3.  Input: Current User Code - #  (lock will beep twice) 
4.  Input: (

User #

) - #  

(User #: Enter the user # that identifies the  

Current User Code on step 3)

 

Summary of Contents for MSL-500

Page 1: ...Better MESA SAFE than Sorry LOCK MODEL MSL 500 ELECTRONIC LOCK OPERATING INSTRUCTIONS...

Page 2: ...the lockout penalty wait five 5 minutes and check if the lock responds See Wrong try penalty on page 2 Replace the existing batteries with new ones See CHANGING YOUR BATTERIES on page 6 The Lock Is Re...

Page 3: ...k safe SAFE OPERATION AND PROGRAMMING Your MASTER CODE is factory set to 1 2 3 4 5 6 7 8 HOW TO OPEN YOUR SAFE Single User Mode Default setting 1 Input Code light stays green for five 5 seconds 2 Turn...

Page 4: ...1 5 ACTIVATE USER CODES Code length 3 8 digit code 1 Input lock will beep twice 2 Input 3 3 3 lock will beep twice 3 Input Current Master Code lock will beep twice 4 Input User User Specify which user...

Page 5: ...5 5 Re Input User light stays green for three 3 seconds Example 6 6 6 Master Code 5 5 This will delete User 5 Unsuccessful Code Change five beeps repeat steps 1 5 SETTING SINGLE USER AND DUAL USER MOD...

Page 6: ...e time delay period to 3 minutes Unsuccessful Code Change five beeps repeat steps 1 4 The Master Code will override the time delay How to open in time delay 1 Enter any valid code other than the Maste...

Page 7: ...ng wires out of housing 3 Carefully reinsert the new 9V alkaline battery do not force the battery into the compartment 4 The lock will retain all current codes and settings IMPORTANT DO NOT RETURN SAF...

Page 8: ...Better MESA SAFE than Sorry MESA SAFE COMPANY P O Box 52282 Irvine CA 92619 Phone 714 891 8356 Fax 714 891 8474 www mesasafe com sales mesasafe com...

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