Introduction
This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of your Simplex E2031XSLL-626-41 E-Plex Cylindrical Lock. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the product. Retain this manual for future reference.
Safety Information
- Always follow local building codes and regulations during installation.
- Ensure all components are securely fastened before operation.
- Do not attempt to modify the lock's internal mechanisms. Unauthorized modifications may void the warranty and compromise security.
- Keep batteries out of reach of children. Dispose of used batteries responsibly.
- Use only recommended cleaning agents to avoid damage to the finish.
Product Overview
The Simplex E2031XSLL-626-41 E-Plex Cylindrical Lock is a robust keyless entry solution designed for commercial and institutional applications. It features a durable keypad for code entry and a lever handle for operation. The lock supports up to 100 unique access codes and offers over 100 million possible code combinations for enhanced security.

Figure 1: Simplex E-Plex Cylindrical Lock. This image displays the Simplex E-Plex Cylindrical Lock in satin chrome finish. It features a numeric keypad at the top, a lever handle below it, and a key cylinder integrated into the handle base for optional key override.
Key Features:
- Supports up to 100 user codes.
- Over 100 million possible code combinations.
- Non-handed design, pre-assembled for left-hand doors, field reversible.
- Keypad programmable; no software required.
- Optional key-in-lever cylinder with Schlage C keyway.
Setup and Installation
Installation of the Simplex E2031XSLL-626-41 lock requires basic tools and adherence to the provided template (not included in this manual, refer to packaging). While the lock is pre-assembled for left-hand door installations, its non-handed design allows for easy field reversal to suit right-hand doors.
- Prepare the Door: Ensure the door is properly prepped according to the lock's template, including bore holes for the lock body and latch.
- Install Latch Mechanism: Insert the latch bolt into the door edge and secure it with screws.
- Install Exterior Assembly: Place the exterior keypad assembly onto the door, ensuring the spindle engages with the latch mechanism.
- Install Interior Assembly: Mount the interior lever assembly, connecting it to the exterior assembly with through-bolts.
- Secure Components: Tighten all screws to ensure the lock is firmly attached to the door. Avoid over-tightening.
- Test Operation: Before closing the door, test the mechanical operation of the lever and latch.
- Install Batteries: Insert the required batteries into the designated compartment (typically on the interior side).
For detailed visual instructions, refer to the installation guide included with your product packaging. Professional installation is recommended for optimal performance and security.
Operating Instructions
The Simplex E-Plex lock operates using a numeric keypad for access control. Programming is done directly on the keypad.
Entering an Access Code
- Press the # key to activate the keypad.
- Enter your valid access code.
- Press the # key again to confirm.
- If the code is correct, the lock will unlock. Turn the lever handle to open the door.
- The lock will automatically re-lock after a short period (default setting).
Programming Access Codes
The lock can be programmed directly via the keypad without removing it from the door. Refer to the full programming guide for advanced features such as adding/deleting codes, setting passage mode, or changing master codes.
- Master Code: A master code is required to program other access codes. Ensure you have this code.
- Adding a User Code: Typically involves entering the master code, a specific function key, the new user code, and confirming.
- Deleting a User Code: Similar process, using the master code and a delete function key.
Note: Specific key sequences for programming are detailed in the separate programming instructions provided with your lock.
Key Override (if applicable)
If your model includes the optional key-in-lever cylinder, you can use the physical key to unlock the door in case of battery failure or for emergency access. Insert the key into the cylinder and turn to unlock.
Maintenance
- Battery Replacement: The lock is powered by batteries (type specified in product documentation). When batteries are low, the lock may provide an audible or visual warning. Replace all batteries simultaneously with new, high-quality alkaline batteries.
- Cleaning: Clean the exterior of the lock with a soft, damp cloth. Avoid abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and keypad.
- Lubrication: The internal mechanisms are designed for long-term, maintenance-free operation. Do not lubricate the keypad or internal components unless specifically instructed by the manufacturer.
- Regular Checks: Periodically check that all mounting screws are secure and that the lever operates smoothly.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lock does not respond to keypad entry. | Dead or low batteries. Incorrect code entered. Keypad malfunction. | Replace batteries. Re-enter code carefully. If issue persists, contact support. |
| Lever turns but door does not unlock. | Latch bolt not fully retracted. Mechanical issue. | Ensure the correct code was entered and the lock mechanism engaged. Check for obstructions in the door frame. If using key override, ensure key turns fully. |
| Lock does not re-lock automatically. | Passage mode activated. Mechanical issue with latch. | Check programming settings to ensure passage mode is deactivated. Inspect latch for damage or obstruction. |
| Difficulty closing the door from inside/outside without turning the handle. | Internal mechanism wear or misalignment. | This indicates a potential internal mechanical issue. Contact customer support or a qualified locksmith for inspection and repair. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | E2031XSLL-626-41 |
| Brand | Simplex |
| Lock Type | Keypad, Cylindrical |
| Material | Metal |
| Finish | Satin Chrome |
| Access Codes | Up to 100 |
| Code Combinations | Over 100 million possible |
| Backset | 2-3/4 inches |
| Latch Throw | 1/2 inch |
| Keyway (Optional) | Schlage C |
| Special Feature | Keyless Entry |
| Dimensions (Approx.) | 10 x 8.2 x 6.2 inches (Package) |
| Weight (Approx.) | 7.8 Pounds (Package) |
Warranty and Support
The Simplex E2031XSLL-626-41 E-Plex Cylindrical Lock is backed by a manufacturer's warranty. Specific warranty terms and duration are provided with your product documentation. Please retain your proof of purchase for warranty claims.
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Simplex customer support directly. Contact information can typically be found on the manufacturer's website or in the product packaging.
When contacting support, please have your model number (E2031XSLL-626-41) and purchase date readily available.





