1. Introduction
The Intelbras FR 330 Digital Mortise Lock is an advanced access control solution designed for various environments, including residences, apartments, offices, and commercial spaces. This manual provides detailed instructions for the installation, operation, and maintenance of your FR 330 lock, ensuring secure and efficient use.

Image 1.1: Front view of the Intelbras FR 330 Digital Mortise Lock, highlighting its sleek design and the 2-year warranty.
2. Product Overview
2.1 Key Features
- Application: Suitable for wooden pivot doors with a thickness between 35 mm and 50 mm.
- Touchscreen Keypad: Features a 12-key touchscreen for modern and user-friendly interaction.
- Adjustable Volume: Allows volume adjustment for various environmental needs.
- Multiple Access Methods: Offers four secure access options: Biometrics (fingerprint), Proximity Tag, Password, and Physical Key.
- Automatic Locking: Enhances security by automatically locking the door after a set period.
- Do Not Disturb Function: Activates a mode that prevents external access, ensuring privacy.
- Mortise Installation: Designed for embedded installation, providing a discreet and integrated finish.
2.2 Included Components
The Intelbras FR 330 package includes the following items:
- 1 Digital Lock unit
- 1 Mortise mechanism
- Fixing plate
- 3 Proximity key fobs
- 3 Adhesive tags
- 2 False strike plates
- 2 Strike plates
- Magnetic sensor
- 8 AA alkaline batteries
- Fixing screws

Image 2.1: Physical keys provided with the FR 330 lock for emergency or alternative access.

Image 2.2: An Intelbras proximity tag, one of the multiple access methods for the FR 330.
3. Setup
3.1 Installation Requirements
- The lock is designed for mortise installation.
- Compatible with wooden pivot doors between 35 mm and 50 mm thick.
- Professional installation is recommended due to the precision required for drilling and component assembly.

Image 3.1: Dimensional diagram of the FR 330 lock and its mortise mechanism, crucial for proper installation.
3.2 Battery Installation
- Locate the battery compartment on the interior unit of the lock.
- Open the battery compartment cover.
- Insert the 8 AA alkaline batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
- The lock will emit an audible signal indicating successful power-up.

Image 3.2: Rear view of the FR 330 lock, illustrating the internal components and battery housing.
3.3 Initial Configuration
Refer to the detailed programming guide for initial setup, including setting the master password and registering initial users. This typically involves accessing the lock's menu via the touchscreen keypad.
4. Operating Instructions
4.1 Access Methods
The FR 330 offers four convenient ways to unlock your door:
- Biometric (Fingerprint):
Place your registered finger on the fingerprint sensor. The lock will verify your fingerprint and unlock the door. Ensure your finger is clean and dry for optimal recognition.

Image 4.1: Demonstrating fingerprint access on the FR 330 digital lock.
- Password:
Touch the keypad to activate it. Enter your registered numerical password followed by the '#' key. The lock will confirm the password and unlock.
- Proximity Tag:
Hold a registered proximity tag or adhesive tag near the card reader area on the lock. The lock will recognize the tag and unlock.

Image 4.2: Using a proximity tag for quick and convenient access with the FR 330.
- Physical Key:
In case of emergency or battery depletion, insert the physical key into the keyhole and turn to unlock the door manually.

Image 4.3: Manual unlocking of the FR 330 using a physical key.
4.2 Automatic Locking
The FR 330 is equipped with an automatic locking feature. After the door is closed, the lock will automatically engage the bolt after a short, configurable delay. This ensures the door is always secured without manual intervention.
4.3 Do Not Disturb Function
To activate the "Do Not Disturb" function, locate the corresponding button or setting on the interior unit. When active, this function prevents external access attempts, providing enhanced privacy and security from the inside.
5. Maintenance
5.1 Battery Replacement
The lock will provide a low battery warning when the batteries need replacement. To replace them, follow the steps outlined in Section 3.2. Always use 8 new AA alkaline batteries for optimal performance. Do not mix old and new batteries or different battery types.
5.2 Cleaning
Clean the lock's exterior surfaces with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or excessive moisture, as these can damage the electronic components or finish. Keep the fingerprint sensor and keypad free from dirt and smudges for reliable operation.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lock does not respond. | Dead batteries. | Replace all 8 AA alkaline batteries. Use the physical key for immediate access. |
| Fingerprint not recognized. | Finger is dirty, wet, or improperly placed. Fingerprint not registered. | Ensure finger is clean and dry. Place finger flat on the sensor. Re-register fingerprint if necessary. |
| Password not accepted. | Incorrect password entered. Keypad not active. | Ensure correct password is entered. Touch keypad to activate before entering password. |
| Proximity tag not working. | Tag not registered. Tag damaged. | Register the tag according to the programming guide. Try another registered tag. |
| Automatic locking not engaging. | Door not fully closed. Sensor misalignment. Feature disabled. | Ensure door is completely closed. Check magnetic sensor alignment. Verify feature is enabled in settings. |
7. Specifications
| Model | FR 330 |
| Brand | Intelbras |
| Material | Acrylonitrile Butadiene Styrene (ABS), Aluminum, Zinc |
| Color | Black/Gray |
| Dimensions (L x W x H) | 7.9 cm x 6.3 cm x 30.1 cm |
| Weight | 2.93 Grams (Note: This value is as provided in product data. Actual weight may be 2.93 kg.) |
| Power Source | 8 AA Alkaline Batteries (included) |
| Door Thickness Compatibility | 35 mm to 50 mm |
| Access Methods | Biometric (Fingerprint), Password, Proximity Tag, Physical Key |
| Special Features | Touchscreen Keypad, Adjustable Volume, Automatic Locking, Do Not Disturb Function |
8. Warranty and Support
8.1 Warranty Information
The Intelbras FR 330 Digital Mortise Lock comes with a 2-year warranty from the date of purchase. This warranty covers manufacturing defects under normal use. Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty service, please contact Intelbras customer support. Visit the official Intelbras website for contact details and further resources.





