Mesa MSL-500 - User Manual

“Better MESA SAFE than Sorry!”
LOCK MODEL: MSL-500
ELECTRONIC LOCK
OPERATING INSTRUCTIONS

Summary

Trouble Shooting

Lock Has No Response

Troubleshooting steps for a safe lock that does not beep or respond.

Lock Responds But Does Not Unlock

Steps to take when the lock responds but fails to unlock the safe.

Basic Features and Functions

Wrong Try Penalty

Keypad shuts down for 5 minutes after four incorrect entries.

Programmable Time Delay

Time delay function can be set from 01 to 59 minutes.

Dual User Mode

Two separate codes needed to unlock the safe.

How to Open Your Safe

Single User Mode Operation

Steps to open the safe using a single user code.

Dual User Mode Operation

Steps to open the safe using two user codes.

Changing the Master Code

Master Code Change Procedure

Steps to change the master code for the electronic lock.

Activate User Codes

User Code Activation Procedure

Steps to activate user codes, specifying user numbers.

Change User Codes

User Code Modification

Steps to change existing user codes for the lock.

Delete User Codes

User Code Deletion Procedure

Steps to delete specific user codes from the lock.

Setting Single User and Dual User Mode

Single User Mode Setup

Instructions to configure the lock for single user mode.

Dual User Mode Setup

Instructions to configure the lock for dual user mode.

Setting Time Delay

Time Delay Configuration

How to set the time delay from 1 to 59 minutes.

How to Open in Time Delay

Time Delay Opening Procedure

Steps to open the safe when time delay is active.

Low Battery Warnings

Low Battery Indicators

Describes red light and unlock failure as low battery warnings.

Changing Your Batteries

Battery Replacement Steps

Procedure for replacing the 9V battery in the lock.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The device described in this manual is the Mesa Model MSL-500 Electronic Lock, designed for use with Mesa Safe Company safes. It is an electronic locking mechanism that provides security for valuables, emphasizing integrity and quality craftsmanship.

Function Description:

The MSL-500 Electronic Lock is a programmable digital lock that secures a safe. It operates by requiring a correct code input to unlock the safe, allowing the user to then turn the handle clockwise to open the door. The lock supports multiple user codes and modes of operation, including a single-user mode and an optional dual-user mode, enhancing security by requiring two separate codes for access. It also features a programmable time delay function, which adds an extra layer of security by delaying the opening of the safe after a valid code is entered. The lock provides visual and auditory feedback for various operations, such as successful code entries, invalid codes, and low battery warnings. A key security feature is the "wrong try penalty," which temporarily shuts down the keypad if multiple incorrect codes are entered, preventing brute-force attempts.

Important Technical Specifications:

• Code Length: The lock supports 3 to 8 digit codes for all personal codes (Master and User codes).
• Number of Codes: It can store up to 6 personal codes: a Master Code and five User Codes (User 1, User 2, User 3, User 4, User 5).
• Factory Master Code: The default factory Master Code is 1-2-3-4-5-6-7-8. Users are strongly advised to change this immediately upon receiving the safe.
• Wrong Try Penalty: After four consecutive incorrect entries, the keypad will shut down for a period of five (5) minutes, during which no codes will be accepted.
• Time Delay Function: Programmable from 01 minute to 59 minutes. Setting it to 00 minutes turns off the time delay mode.
• Battery Type: Requires a 9-volt alkaline battery.
• Battery Life Indicator: The lock provides warnings for low battery, indicated by a red light appearing when opening the safe (instead of green) or by the lock not unlocking despite a valid code and response.

Usage Features:

• Single User Mode (Default):
  • To open: Input Code - #. The green light stays on for five seconds.
  • Turn the handle clockwise before the green light disappears.
  • Invalid code results in a solid red light and five beeps.
• Dual User Mode (Optional):
  • To open: Input 1st Code - # (lock beeps twice), then 2nd Code - #. The green light stays on for five seconds.
  • Turn the handle clockwise before the green light disappears.
  • Invalid code results in a solid red light and five beeps.
  • The Master Code can override dual user mode, allowing single-code access.
• Changing Master Code:
  • Performed with the door open.
  • Sequence: * - # (beeps twice) -> 8 - 8 - 8 - # (beeps twice) -> Current Master Code - # (beeps twice) -> New Master Code - # (beeps twice) -> Re-Input New Master Code - # (green light for three seconds).
  • Unsuccessful change results in five beeps; the old code remains valid.
• Activating User Codes:
  • Sequence: * - # (beeps twice) -> 3 - 3 - 3 - # (beeps twice) -> Current Master Code - # (beeps twice) -> (User #) - # (specify user 1-5) -> New User Code - # (beeps twice) -> Re-Input New User Code - # (green light for three seconds).
  • Unsuccessful activation results in five beeps.
• Changing User Codes:
  • Sequence: * - # (beeps twice) -> 4 - 4 - 4 - # (beeps twice) -> Current User Code - # (beeps twice) -> (User #) - # (identify the current user code) -> New User Code - # (beeps twice) -> Re-Input New User Code - # (green light for three seconds).
  • Unsuccessful change results in five beeps.
• Deleting User Codes:
  • Sequence: * - # (beeps twice) -> 6 - 6 - 6 - # (beeps twice) -> Current Master Code - # (beeps twice) -> (User #) - # (specify user 1-5 to delete) -> Re-Input (User #) - # (green light for three seconds).
  • Unsuccessful deletion results in five beeps.
• Setting Single User Mode:
  • Sequence: * - # (beeps twice) -> 1 - 5 - 8 - # (beeps twice) -> Current Master Code - # (beeps twice) -> 1 - # (green light for three seconds).
  • Unsuccessful change results in five beeps.
• Setting Dual User Mode:
  • Sequence: * - # (beeps twice) -> 1 - 5 - 8 - # (beeps twice) -> Current Master Code - # (beeps twice) -> 2 - # (green light for three seconds).
  • Unsuccessful change results in five beeps.
• Setting Time Delay:
  • Sequence: * - # (beeps twice) -> 1 - 5 - 9 - # (beeps twice) -> Current Master Code - # (beeps twice) -> (00 - 59) - # (green light for three seconds).
  • 01 sets 1 minute delay, 59 sets 59 minutes, 00 turns off time delay.
  • The Master Code can override the time delay.
• Opening in Time Delay Mode:
  • Enter any valid code (other than Master Code). Time delay activates.
  • During delay, codes are not accepted; pressing a key shows an orange light for three seconds.
  • The lock beeps continuously, and the green light stays on for the last 30 seconds of the delay.
  • Once beeps stop, the lock unlocks for five seconds, allowing the handle to be turned.

Maintenance Features:

• Battery Replacement:
  • Locate the battery cover on the bottom edge of the keypad.
  • Remove the cover by pulling on the tab.
  • Carefully remove the 9-volt battery from the compartment, holding onto the battery connector to avoid pulling wires.
  • Carefully reinsert a new 9V alkaline battery, ensuring it's not forced.
  • The lock retains all current codes and settings during battery replacement.
• Troubleshooting:
  • No Lock Response (No Beeps): Check battery wires for pinching/secure connection. Wait five minutes if in lockout penalty. Replace batteries.
  • Lock Responds but Doesn't Unlock: Ensure valid response and signal with every keystroke. Check if in time delay mode. Replace batteries.
• Technical Support: Mesa Safe Company provides technical support for missing parts, programming difficulties, opening issues, or any other questions. Users are advised not to return the safe to the store. Support is available Mon-Fri, 8:00am-5:00pm PST via phone at 800-490-5624 or 714-891-8356.

Mesa MSL-500 Specifications

General

Brand	Mesa
Model	MSL-500
Category	Locks
Language	English