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Dear Valued Customer: 

     Congratulations, on your choosing Mesa Safe to protect your valuables.  

You have made an excellent choice in your security measures. Mesa Safe     

Company has built a solid reputation on integrity and quality craftsmanship. 

We pride ourselves in having the best products in the industry and           

consistently exceeding customer expectations. 
     Your Mesa Safe product comes with a support team and warranty in 

place that is second to none. We have the most qualified safe technicians 

throughout the country ready to assist you, should you have a problem with 

your unit.   
     

Please read and understand the operating instructions of the unit, this 

will ensure maximum efficiency and usability

Page 1 

TROUBLE SHOOTING  

 

The Lock Has No Response (No Beeps) 

• 

Make sure the battery wires in the keypad housing are not pinched and are  

securely connected.  

• 

Lock can possibly be in 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 Responding But Does Not Unlock 

• 

Make sure you are getting a valid response.  

• 

Make sure you get a signal with every key stroke. 

• 

Make sure you are not in time delay mode. (See 

How to open in time delay 

on 

page 5) 

• 

Replace the existing batteries with new ones. (See 

CHANGING YOUR          

BATTERIES 

on page 6) 

 

If the lock still does not open, contact Mesa Safe Company’s Technical Support: 

800-490-5624 or 714-891-8356 (Available Mon - Fri, 8:00am - 5:00pm PST)

 

 

 

IMPORTANT: DO NOT RETURN SAFE TO STORE 

If you are missing parts, have difficulty programming or opening your safe or 

have any other questions regarding the use and care of your safe, DO NOT 

RETURN your safe to the store. Please contact Technical Support at 1-800-

490-5624 for assistance.  

 

     Please visit www.mesasafe.com and see the diverse selection of  products 

available to meet your security needs. Thank you for choosing Mesa Safe 

Company. 

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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