1. Introdución
This manual provides essential instructions for the proper setup, operation, and maintenance of your CipherLab RK25 UHF RFID Reader Writer. The RK25 is a versatile mobile computer designed for data collection, featuring a 2D imager, NFC, and optional UHF RFID capabilities. It operates on Android 7.0, 9.0, or 11.0 with GMS, offering robust performance for various industrial applications.

Figure 1: CipherLab RK25 device with attached UHF RFID reader, displaying the Android home screen.
2. Configuración
2.1. Instalación da batería
- Locate the battery compartment on the rear of the RK25 handheld unit.
- Press the latch to release the battery cover.
- Insert the 3.8V, 4000 mAh Li-Polymer battery, ensuring the contacts align correctly.
- Peche a tapa da batería ata que encaixe firmemente no seu lugar.
Note: Battery replacement is designed for quick execution, typically taking only 2 steps and 3 seconds.

Figure 2: Key features diagram, including battery compartment.
2.2. Cargando o dispositivo
Before initial use, fully charge the RK25 device. Use the provided charging cradle or USB cable. A full charge typically provides a minimum of 8 hours of operation with the 2D imager.
2.3. Acendido/apagado
- To power on: Press and hold the power button until the CipherLab logo appears.
- Para apagar: manteña premido o botón de acendido e, a seguir, seleccione "Apagar" entre as opcións.
2.4. Attaching the UHF RFID Reader
The RK25 UHF RFID reader module can be easily attached to the RK25 handheld unit. Align the 8-pin electrical connection and secure the module firmly.

Figure 3: User holding the RK25 with UHF RFID reader attached.
3. Instrucións de funcionamento
3.1. Keypad and Touchscreen Navigation
The RK25 features a 4-inch WVGA (480x800) touch display and a physical keypad. Models are available with either a 25-key keypad (2 function keys) or a 28-key keypad (4 function keys) to suit specific application needs. Use the touchscreen for intuitive navigation through the Android interface and the physical keys for data entry and dedicated functions.

Figura 4: Fronte view of the RK25 handheld unit, showing screen and keypad.
3.2. Barcode Scanning (2D Imager)
The integrated 2D imager supports reading 1D and 2D barcodes. It offers a reading range of up to 4 meters. The scanning angle can be set to 10° or 70° (70° by request) for optimal on-screen data checking and comfortable scanning.
- Point the scanner window at the barcode.
- Press the trigger button (typically yellow) to activate the scanner.
- Ensure the barcode is within the aiming pattern for a successful read.
3.3. UHF RFID Reading
When the UHF RFID reader module is attached, the RK25 can read EPC Class1 Gen2 V2 RFID tags. The circularly polarized antenna provides a read range of 8+ meters (26+ ft) and a fast read rate of over 700 tags por segundo.
- Ensure the UHF RFID reader module is securely attached and powered on.
- Point the antenna towards the RFID tags.
- Activate the RFID reading function via the device's software interface.
3.4. Funcionalidade NFC
The RK25 supports NFC (Near Field Communication) at 13.56 MHz, compatible with ISO14443 Type A, B, and ISO15693 standards. It supports Peer-to-Peer, Card Reader, and Card Emulation modes.
- Enable NFC in the device settings.
- Tap the device near an NFC tag or another NFC-enabled device to initiate communication.
3.5. Uso da cámara
The device includes an 8-megapixel autofocus camera with an LED flash for image capture.
- Open the camera application from the Android home screen.
- Frame your subject and tap the screen to focus, then press the capture button.
3.6. Comunicación sen fíos
The RK25 supports various wireless communication methods:
- WLAN: IEEE 802.11 a/b/g/n/ac/d/h/i/k/r/e for Wi-Fi connectivity.
- WPAN: Bluetooth Class II, V4.0/V4.1/V4.2 BLE, V2.1 with EDR for short-range device pairing.
- WWAN: GSM, TD-SCDMA, WCDMA, TDD-LTE, and FDD-LTE bands for cellular connectivity.
- GPS: Integrated GPS, Galileo, GLONASS, BeiDou, and AGPS for location services.
4. Mantemento
4.1. Instrucións de limpeza
- Use un pano suave e sen pelusa lixeiramente dampened with water or a mild cleaning solution to clean the device''s exterior.
- Non empregue produtos químicos agresivos, abrasivos nin solventes.
- For the display, use a screen-specific cleaner and a microfiber cloth.
4.2. Coidado da batería
- Evite expor a batería a temperaturas extremas.
- Non perfore nin desmonte a batería.
- Recicle as baterías usadas segundo a normativa local.
4.3. Robustez e durabilidade
The RK25 is designed for demanding environments, featuring an IP65 rating for dust and water resistance. It can withstand multiple drops of 1.5 m (5 ft) onto concrete, and up to 1.8 m (6 ft) with an optional rubber boot, meeting MIL-STD-810G standards. It also endures 300 tumbles at 0.5 m.
5 Solución de problemas
This section addresses common issues you might encounter with your CipherLab RK25.
5.1. O dispositivo non se acende
- Asegúrese de que a batería estea correctamente instalada e completamente cargada.
- Connect the device to the charger and attempt to power on.
- If the issue persists, try a different battery if available.
5.2. Barcode Scanning Issues
- Verify that the barcode is clean and undamaged.
- Ensure the scanner window is clean and free of obstructions.
- Check the scanning application settings to confirm the correct barcode symbologies are enabled.
- Axusta a distancia e o ángulo entre o escáner e o código de barras.
5.3. UHF RFID Reading Problems
- Confirm the UHF RFID reader module is securely attached and enabled.
- Ensure the RFID tags are within the optimal read range and orientation.
- Check for potential interference from other electronic devices or metallic objects.
5.4. Connectivity Issues (Wi-Fi/Bluetooth/WWAN)
- Verify that the respective wireless communication feature is enabled in the device settings.
- Para a wifi, asegúrate de estar dentro do alcance dunha rede coñecida e de introducir o contrasinal correcto.
- For Bluetooth, ensure the pairing device is in discovery mode and within range.
- For WWAN, check SIM card installation and cellular network coverage.
6. Especificacións
The following table details the technical specifications for the CipherLab RK25 and its UHF RFID reader attachment.

Figure 5: Detailed technical specifications for the RK25 series.
| Característica | Descrición |
|---|---|
| Sistema Operativo | Android 7.0 with GMS (Upgradeable to Android 9.0/11.0 with GMS) |
| CPU | Quad-core 1.4 GHz Cortex A53 |
| Memoria | 2 GB de RAM / 16 GB de Flash |
| Expansión | Micro SD card slot with SDHC support (up to 32GB) |
| SIM/SAM | 1 SIM slot and 1 optional SIM/SAM slot |
| Potencia de operación | Replaceable and rechargeable 3.8V, 4000 mAh Li-Polymer battery |
| Horario de traballo | Minimum 8 hours (2D imager) |
| WWAN | GSM, TD-SCDMA, WCDMA, TDD-LTE, FDD-LTE (various bands) |
| WLAN | IEEE 802.11 a/b/g/n/ac/d/h/i/k/r/e |
| WPAN | Bluetooth Class II, V4.0/V4.1/V4.2 BLE, V2.1 with EDR |
| GPS | GPS, Galileo, GLONASS, BeiDou, AGPS |
| RFID Read/Write (HF) | 13.56 MHz (ISO14443 Type A, B, ISO15693), NFC support |
| Barcode Imager | 2D Imager with 4m long reading range, 10° or 70° scanning angle |
| Cámara | Enfoque automático de 8 megapíxeles con flash LED |
| Mostrar | 4'' WVGA 480 (W) x 800 (H) |
| Teclado | 25-key (2 function keys) or 28-key (4 function keys) |
| Size (RK25) | 168 x 73.8 x 26 mm (6.61 x 2.91 x 1.02 polgadas) |
| Weight (RK25) | 292 g (Mid-Range 2D imager with battery) |
| Resistencia ao impacto | 1.5 m (5 ft) multiple drops onto concrete; 1.8 m (6 ft) with rubber boot (MIL-STD-810G) |
| Robusteza | IP65, 300 tumbles at 0.5 m |
| UHF RFID Standard | EPC Class1 Gen2 V2 |
| Antena RFID UHF | Polarizado circularmente |
| UHF RFID Read Rate | 700+ tags/seg |
| UHF RFID Read Range | 8+ m (26+ ft) |
| UHF RFID Frequency | 902~928 MHz (US), 865~868 MHz (EU) |
| UHF RFID Battery | Batería de iones de litio de 3.6 V, 3000 mAh |
| UHF RFID Dimensions | 181.4 mm x 85.3 mm x 162.9 mm |
| UHF RFID Weight | 632.7 g |
7. Garantía e soporte
7.1. Garantía do fabricante
CipherLab products are covered by a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official CipherLab websitio web para obter termos e condicións de garantía detallados específicos da súa rexión.
7.2. Soporte técnico
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact CipherLab customer support. Contact information can typically be found on the CipherLab websitio ou na embalaxe do produto.
You may also find useful resources, software development kits (SDKs), and configuration tools on the official CipherLab support portal.





