Colosus NDL302 Electronic Keyless Door Lock Instruction Manual

Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Colosus NDL302 Electronic Keyless Door Lock. This advanced security system offers multiple access methods, including a digital keypad, RFID key fobs, a remote control, and traditional physical keys, making it ideal for homes, offices, and commercial spaces requiring flexible and secure entry solutions.

The Colosus NDL302 Electronic Keyless Door Lock features a sleek black design with an integrated keypad and handle. This image displays the main unit of the lock.

1. Product Overview and Package Contents

Before beginning installation, please ensure all components are present and undamaged. The package for the Colosus NDL302 Electronic Keyless Door Lock typically includes the following:

• Main Lock Assembly (Exterior Keypad Unit and Interior Handle Unit)
• Standard Latch 60MM (Note: 70MM elongated latch may be purchased separately if needed)
• 4 Colosus RFID Key Fobs
• 1 Colosus Remote Control
• 2 Metal Keys (Note: These keys are not replaceable and cannot be copied)
• Mounting Hardware and Screws

This image shows the complete package contents for the Colosus NDL302 lock, including the main lock assembly, four RFID key fobs, a remote control for convenient access, and two traditional metal keys for backup entry.

2. Door Requirements and Preparation

To ensure proper fit and function, your door must meet specific criteria:

• Door Thickness: The door must be between 35mm (1.38 inches) and 60mm (2.36 inches) thick.
• Drilling: One non-standard 10mm hole will need to be drilled through the existing door to secure the Colosus NDL302 lock in place.
• Power: The lock requires 4 AA alkaline batteries (NOT INCLUDED). Avoid using used or discount/off-brand batteries for optimal performance.
• Environmental Conditions: This lock is NOT WATERPROOF. If used on an exterior door, it is highly recommended to have a roof or cover to shield the Colosus NDL302 from direct water exposure.
• Temperature Range: The lock is designed to function properly within a temperature range of 14°F to 122°F (-10°C to 50°C).

A visual guide outlining essential pre-installation checks for the Colosus NDL302. It specifies the required door thickness, the need for a 10mm hole, the use of 4 AA batteries, and a warning against direct water exposure for outdoor installations.

3. Installation

Installation of the Colosus NDL302 involves replacing your existing door handle and latch mechanism. Due to the specific drilling requirements and the electronic nature of the lock, professional installation is recommended to ensure proper functionality and security. Refer to the detailed installation guide provided in your product packaging for step-by-step instructions. The interior unit of the lock houses the battery compartment.

4. Operating the Lock: Access Methods

The Colosus NDL302 offers four convenient ways to unlock your door:

4.1. PIN Code Entry

• To unlock, enter your programmed PIN code on the keypad.
• The keypad will illuminate when active. A correct code entry will typically result in a green light, while an incorrect entry will show a red light.
• Anti-Peeking Feature: To protect your code, you can enter a random set of numbers before or after your actual PIN code. The lock will still recognize the correct sequence within the longer entry.

4.2. RFID Key Fob

• Hold an authorized RFID key fob near the designated sensor on the lock. The lock will disengage, allowing you to open the door.

4.3. Remote Control

• Press the unlock button on the provided remote control. The lock will disengage. The remote control has a range of up to 30 meters.

4.4. Physical Key

• In case of battery depletion or electronic malfunction, a hidden keyhole is available for emergency access using one of the two provided metal keys.

This diagram visually explains the multiple access options for the Colosus NDL302 lock. It shows how to unlock using a numerical PIN on the keypad, by tapping an RFID key fob, with the included remote control, or by using a traditional physical key.

5. Advanced Features

5.1. Automatic Locking

You can configure the lock to automatically re-lock after a set period once it has been unlocked. This feature enhances security by ensuring the door is always secured.

5.2. System Syncing

For users with multiple Colosus NDL302 locks, the system allows you to sync your access codes, key fobs, and remote controls to work across all compatible lock models, simplifying access management.

6. Maintenance and Care

• Low Battery Alert: The lock features a flashing light indicator to alert you when the battery level is low. Replace all 4 AA alkaline batteries promptly to ensure continuous operation.
• Battery Replacement: Access the battery compartment on the interior side of the lock to replace the 4 AA alkaline batteries.
• Cleaning: Clean the lock's exterior with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the finish or electronic components.
• Environmental Protection: As the lock is not waterproof, protect it from direct water exposure, especially if installed outdoors.

7. Troubleshooting

• Anti-Thief Feature: If three consecutive incorrect PIN codes are entered, the lock will temporarily disable and emit an alert sound to deter unauthorized access. Wait for the lockout period to expire before attempting to enter the code again.
• Lock Not Responding: Check the battery level. If the low battery alert is active or if the lock is unresponsive, replace the batteries.
• Access Issues: Ensure you are using correctly programmed PIN codes, RFID fobs, or remote controls. If issues persist, refer to the programming section of your full manual or contact customer support.

8. Product Specifications

9. Customer Support

Colosus is committed to providing excellent customer service. Our English-speaking support team, based in the USA, is available 5 days a week to assist you with any questions regarding installation, programming, or troubleshooting.

For custom setup inquiries, especially for commercial customers, please contact us via phone or email for more information. Contact details can be found on the official Colosus website or in your product packaging.