1. Киришүү
This user manual provides detailed instructions for the installation, operation, and maintenance of your ARPHA Fingerprint Door Knob D228. Please read this manual thoroughly before installation and use to ensure proper function and safety. Keep this manual for future reference.
2. Продукт бүтүп калдыview
2.1 Негизги өзгөчөлүктөрү
- 5-бирде кулпусун ачуу ыкмалары: Fingerprint, Bluetooth App Control, Digital Password, One-Time Code, and Mechanical Key.
- Колдонмону башкаруу: Manage access, view entry logs, set temporary codes, and receive low battery alerts via the Tuya APP (Bluetooth connectivity).
- Карап чыгууга каршы сырсөз: Enter random digits before or after your actual password to prevent unauthorized observation.
- Оңой орнотуу: Designed for quick setup with a screwdriver, fitting standard door dimensions.
- Өзгөчө кырдаалдардын күчү: Powered by 4 AA batteries (not included) with a Type-C emergency power port for backup.
- Туруктуу курулуш: Made from zinc material for reliability.
- Аба ырайына туруктуу: IP54 чаңдан жана чачыраган суудан коргоо үчүн бааланган.
2.2 Продукт диаграммасы

Сүрөт: алдыңкы view of the ARPHA Fingerprint Door Knob D228, showing the fingerprint sensor and numeric keypad.

Сүрөт: An overview of the ARPHA D228 smart door knob installed on a door, highlighting its keyless entry and app control features.
3. Орнотуу
3.1 Орнотууга талаптар
- Эшик калыңдыгы: 1-3/8 inches to 2-1/8 inches (35 mm - 55 mm).
- Backset Scale Range: 2-3/8 inches (60mm) and 2-1/8 inches (70mm).
- Керектүү куралдар: Филлипс бурагыч.
3.2 Орнотуу кадамдары
- Prepare the door: Ensure your door meets the specified thickness and backset requirements.
- Install the latch: Insert the latch into the door edge and secure it with screws.
- Install the exterior assembly: Place the exterior handle assembly through the door, ensuring the spindle aligns with the latch mechanism.
- Install the interior assembly: Connect the interior handle assembly to the exterior assembly, ensuring all cables are properly routed and connected. Secure with screws.
- Insert batteries: Open the battery cover on the interior assembly and insert 4 AA batteries (not included), observing polarity.
- Test the lock: After installation, test the mechanical key and ensure the handle operates smoothly.

Image: The ARPHA D228 door knob demonstrating its ability to automatically identify left or right door handing during installation.
3.3 App Setup (Tuya APP)
- Download the Tuya APP: Издөө "Tuya Smart" in your mobile device's app store and download it.
- Create an account: Follow the in-app instructions to register a new account or log in if you already have one.
- Add device: Ensure Bluetooth is enabled on your phone. In the Tuya APP, tap "Add Device" or the "+" icon. The app should automatically detect the ARPHA D228 door knob.
- Pair the device: Follow the on-screen prompts to pair your door knob with the app. This may involve pressing a button on the lock or entering a default code.
- Configure settings: Once paired, you can configure user fingerprints, passwords, temporary codes, and other settings within the app.
4. Иштөө нускамалары
4.1 Кулпуну ачуу ыкмалары

Image: Visual representation of the five unlocking methods: Fingerprint, App Control, Keypad, and Mechanical Key.
- Манжа ачуу:
Place your registered finger on the fingerprint sensor. The lock will unlock if the fingerprint is recognized. The sensor has a 0.3s identification speed and 99.8% accuracy rate.
Image: A finger being placed on the fingerprint sensor of the ARPHA D228 door knob for unlocking.
Сүрөт: деталдуу view of the fingerprint sensor technology, highlighting its speed and accuracy. - Digital Password Unlock:
Enter your registered password on the keypad. The lock supports an anti-peeping function where you can enter random digits before or after your actual password (e.g., XX + Password + XX).
Image: Illustration of the anti-peeping password feature, showing how random digits can be added around the real password. - App Control Unlock:
Open the Tuya APP on your smartphone and use the one-touch unlock feature. Ensure your phone is within Bluetooth range of the lock.
Image: A smartphone displaying the Tuya app interface with an unlock button for the ARPHA D228 door knob. - One-Time/Temporary Code:
Generate temporary or date-specific access codes through the Tuya APP for guests or service personnel. These codes can be sent remotely.
Image: A person receiving a temporary access code for the ARPHA D228 door knob via their smartphone.
Image: A scenario showing a delivery person and a homeowner communicating about a one-time access code for entry. - Механикалык ачкыч:
Use the provided physical backup keys to unlock the door in case of battery failure or other emergencies. The keyhole is located at the bottom of the exterior handle.
4.2 Колдонмо функциялары
- Access Entry Logs: View ким жана качан кирген тарыхы.
- Автоматтык кулпу: Configure the lock to automatically lock after a set period.
- Батареянын аздыгы жөнүндө эскертүүлөр: Receive notifications when the battery level is low.
- Колдонуучуну башкаруу: Add or delete up to 50 different user codes and fingerprints.

Image: An illustration showing various user types (family, roommate, agent, repairman, friend, delivery man) who can be assigned unique access codes.
4.3 Waking Up the Touchscreen
Users can place their finger on the lock to wake up the touchscreen, which takes approximately 1 second.

Image: A hand touching the ARPHA D228 door knob's keypad to activate the screen.
5. Техникалык тейлөө
5.1 Батареяны алмаштыруу
The ARPHA D228 door knob is powered by 4 AA batteries (not included), providing approximately 3-4 months of continuous operation. The lock will emit a low battery sound prompt when power is running low. Replace all four batteries promptly when this alert occurs.

Image: A visual showing the ARPHA D228 door knob indicating a low battery alert and the use of the Type-C emergency charging port.

Image: A visual representation of the low battery alert on the ARPHA D228 door knob, with a smartphone displaying a 20% battery level.
5.2 Өзгөчө кырдаалдарда электр энергиясы
In case of complete battery depletion, the lock features a Type-C emergency power port. Connect a portable power bank or a Type-C charger to this port to temporarily power the lock and gain access.

Image: A hand connecting a Type-C cable to the emergency power port on the ARPHA D228 door knob.
5.3 Тазалоо
Кулпунун сыртын жумшак, кургак чүпүрөк менен тазалаңыз. Абразивдүү тазалоочу каражаттарды, эриткичтерди же катуу химиялык заттарды колдонуудан алыс болуңуз, анткени алар каптоого жана электрондук компоненттерге зыян келтириши мүмкүн.
5.4 Аба ырайына туруктуулук
The ARPHA D228 is designed with IP54 weather resistance, meaning it is protected against dust ingress and splashing water from any direction. It can operate in temperatures ranging from -4°F to +140°F.

Image: An illustration highlighting the weather resistance of the ARPHA D228 door knob, showing its ability to withstand various temperatures and water splashes (IP54 rating).
6. Кыйынчылыктарды
- Манжа изи таанылган жок: Ensure your finger is clean and dry. Try re-registering your fingerprint if the issue persists. Ensure proper placement on the sensor.
- Кулпу жооп бербей жатат: Check battery levels. If batteries are low or depleted, use the Type-C emergency power port or the mechanical key.
- Auto-lock behavior: The auto-lock feature is either on or off. If turned off, the lock will not engage automatically or manually via keypad/fingerprint. If you require the door to remain unlocked for a period, you must keep it physically open or unlock it each time.
- Cannot manually lock from inside: This model does not feature a manual lock button on the interior. Twisting the interior handle will always open the door, regardless of its locked status. To secure the door from the inside, ensure the auto-lock feature is enabled or use the app to lock it.
- Lock relocks too quickly: The lock is designed to relock instantly (1-2 seconds) after unlocking. There is no option to extend this time. If you need to make multiple trips, you must either keep the door physically open or unlock it each time.
- Баскычтоп жооп бербей жатат: Ensure the touchscreen is awake by placing a finger on it. If still unresponsive, check battery levels.
7. Техникалык шарттар
| Өзгөчөлүк | Спецификация |
|---|---|
| Бренд | ARPHA |
| Модель аты | D228 |
| Кулпу түрү | Biometric, Deadbolt |
| Кулпуну ачуу ыкмалары | Fingerprint, Bluetooth App, Digital Password, One-Time Code, Mechanical Key |
| Өзгөчөлүктөр | Anti-Peeping Password, Auto-Lock, Fingerprint, One-Touch Lock, Touchscreen |
| Connectivity Protocol | Bluetooth |
| Материал | Цинк |
| Элементтин өлчөмдөрү (L x W x Y) | 5 x 2.5 x 2.5 дюйм |
| Элемент Салмагы | 2.03 фунт |
| Power Source | 4 АА батарейкалар (киргизилген эмес) |
| Өзгөчө кырдаалдардын күчү | Type-C порту |
| Эшиктин калыңдыгы диапазону | 1-3/8 дюймдан 2-1/8 дюймга чейин (35 мм - 55 мм) |
| Backset Range | 2-3/8 inches (60mm) and 2-1/8 inches (70mm) |
| Аба ырайына каршылык | IP54 |
8. Кепилдик жана колдоо
The ARPHA Fingerprint Door Knob D228 is backed by an 18 айлык кепилдик. ARPHA also provides өмүр бою техникалык колдоо. Our customer service team is available 24/7 to assist you with any questions or issues you may encounter.
For support, please refer to the contact information provided with your product packaging or visit the official ARPHA webсайт.





