1. Introduction
The MEFERI ME40K is a robust and versatile industrial handheld data collector designed for demanding environments such as logistics, warehousing, and retail. Running on Android 12 with GMS and AER certification, it offers a user-friendly interface, powerful performance, and advanced data capture capabilities including 1D/2D barcode scanning and RFID. Its rugged design ensures durability and reliability in challenging work conditions.
Figure 1: MEFERI ME40K Mobile Computer
2. Key Features
- Operating System: Android 12 with Google Mobile Services (GMS) and Android Enterprise Recommended (AER) endorsement for updated security and features.
- Memory: 3GB RAM / 32GB eMMC, expandable up to 512GB via Micro SD card.
- Battery: 5180 mAh high-capacity battery with hot-swap support (50mAh backup) for up to 20 hours of operation. Supports QC 3.0 quick charge.
- Durability: IP67 class protection against water, dust, and dirt. 1.8m (6 ft.) multiple drops to concrete over operating temperature.
- Scan Engine: Integrated MEFERI SE5070, SE4770, or Honeywell HS7 for intelligent 1D/2D barcode and image capture with PRZM technology.
- Camera: 13MP rear camera with PDAF, 1080p video shooting, Torch mode, and Flash mode.
- Connectivity: WLAN (WiFi), WPAN (Bluetooth 5.0+BR/EDR+BLE), WWAN (2G, 3G, 4G LTE), NFC, USB 2.0 (Host and Client), Pogo Pin.
- Display: 4.0-inch WVGA (480 x 800) multi-mode capacitive touch screen with 450 NIT brightness, supporting wet hand and glove operation.
- Keypad: On-screen keypad and enterprise physical alphanumeric keypad (21 physical keys).
Figure 2: Industrial Grade Quality - IP67 Sealing and 1.8m Drop Resistance
3. Device Components
Familiarize yourself with the various parts and functions of your ME40K device:
Figure 3: ME40K Buttons and Functions Introduction
- Status Indicator LED: Provides device status feedback.
- Front Camera: For video calls or specific applications.
- Proximity Sensor: Disables display during calls.
- Receiver: Earpiece for audio.
- Scanner LED: Illuminates during scanning operations.
- Touch Screen: 4.0-inch WVGA display for interaction.
- Buttons: Physical alphanumeric keypad and programmable function buttons.
- POGO PIN: For charging via cradle or connecting pistol grip.
- Speaker: For audio output.
- Rear Camera & Flash: 13MP camera with flash for imaging.
- Hand Strap Ring: Attachment point for a hand strap.
- Rear Cover Lock: Secures the battery compartment.
- Left/Right Scan Button: Triggers barcode scanning.
- NFC: Near Field Communication area.
- Scan Engine: Integrated barcode scanner.
- Type C Connector: USB port for charging and data transfer.
- Main Mic & 2nd Mic: For voice input and noise cancellation.
- Power Button: Turns the device on/off and controls screen lock.
- Custom Button: Programmable button for specific functions.
4. Initial Setup
4.1. Battery Installation
- Ensure the device is powered off.
- Locate the rear cover lock and open the battery compartment.
- Insert the 5180 mAh battery into its slot, ensuring proper alignment of the contacts.
- Close the battery compartment and secure the rear cover lock.
Figure 4: Battery Installation
4.2. SIM Card Installation
The device supports nano SIM cards. Depending on your model, you may have options for single or dual SIM, and eSIM support.
- Locate the SIM card slot, usually near the battery compartment.
- Insert your nano SIM card(s) into the designated slot(s) according to the diagram on the device.
- Ensure the SIM card(s) are securely seated.
4.3. Powering On/Off
- To Power On: Press and hold the Power button until the MEFERI logo appears on the screen.
- To Power Off: Press and hold the Power button until a power-off menu appears. Select "Power off" and confirm.
5. Basic Operation
5.1. Barcode Scanning
The ME40K is equipped with an advanced barcode scanning engine for efficient data collection.
- Open the scanning application on your device.
- Point the scan engine at the 1D or 2D barcode you wish to scan.
- Press either the Left or Right Scan button to activate the scanner.
- The device will emit a light beam and a confirmation sound/vibration upon successful scan. The scanned data will appear on the screen.
Video 1: Barcode Scanning Demonstration
Figure 5: Using the ME40K with Pistol Grip for Scanning
5.2. Touch Screen and Keypad
- Touch Screen: Navigate the Android interface by tapping, swiping, and pinching. The screen supports wet hand and glove operation.
- Physical Keypad: Use the 21 physical alphanumeric keys for data entry and navigation, providing tactile feedback for efficient use.
- Programmable Buttons: Customize the function buttons to quickly access frequently used applications or features.
6. Connectivity
6.1. Wi-Fi (WLAN)
The ME40K supports advanced WLAN features and seamless Wi-Fi roaming, ensuring continuous connectivity without data loss during transitions between access points.
- Go to Settings > Network & internet > Wi-Fi.
- Turn on Wi-Fi and select your desired network.
- Enter the password if prompted and connect.
6.2. Bluetooth (WPAN)
Connect to Bluetooth devices such as headsets or printers.
- Go to Settings > Connected devices > Connection preferences > Bluetooth.
- Turn on Bluetooth and pair with your desired device.
6.3. Cellular (WWAN)
The device supports 2G, 3G, and 4G LTE cellular standards for data and voice communications.
- Ensure a valid SIM card is installed.
- Configure APN settings if necessary (usually automatic).
6.4. NFC
The ME40K supports NFC for various applications, including ISO 14443 Type A and B, FeliCa, and ISO 15693 cards, with Reader mode, Card Emulation, and P2P mode.
- Activate NFC in Settings.
- Tap the device near an NFC tag or compatible device to initiate communication.
7. Technical Specifications
| Category | Feature | Specification |
|---|---|---|
| Performance Characteristics | Processor | MTK6765, Octa-core 2.0 GHz |
| Operating System | Android 12 (GMS & AER) | |
| Memory | 3GB RAM/32GB eMMC | |
| Security | Supports Verified Boot | |
| Extended Memory | Micro SD x1, max support up to 512GB | |
| Origin | Mainland China | |
| Physical Characteristics | Dimensions | 164.6 x 69.8 x 17.8 mm (6.48 in. x 2.75 in. x 0.7 in) |
| Weight | With battery: 288.5g / 10.18 oz. Without battery: 190.3g / 6.71 oz. | |
| Display | 4.0 in. WVGA 480 x 800 | |
| Touch Panel | Multi-mode capacitive touch, wet hand and glove operation. Screen sinks to prevent falling and breaking. | |
| Hot Swap Battery | 50 mAh backup battery for 5-10 minutes during main battery swap. | |
| Display Brightness | 450 NIT | |
| SIM | Standard: nano SIM x1 + eSIM x1; Option: nano SIM x2 | |
| Notifications | Ring tone; three-color LED x2 (Status Indicator, Scanning indicator); vibrate alert | |
| Power | 5180 mAh (3.85V rated, 4.4V limited charge), with Hot Swap mode. Supports QC 3.0 quick charge (up to 4 hours for 100%). | |
| Interface Ports | USB 2.0 with OTG + 4 Pogo pin (for Cradle) + 4 Pogo pin (for Pistol Grip) | |
| Data Capture | Scanning | SE4770, Honeywell HS7, MEFERI SE5070. Intelligent barcodes and image capture technology, lightning-fast data recognition and processing, optimized visualization provide ultra-fast scanning of printed and electronic 1D and 2D barcodes. PRZM technology in scanners optic, best scanning. |
| Camera | Rear: 13MP. Supports PDAF and 1080p video shooting. Torch mode and Flash mode. | |
| NFC | ISO 14443 Type A and B; FeliCa and ISO 15693 cards; Card Emulation via Host; Reader mode, Card Emulation and P2P mode. | |
| Sensors | Light Sensor, Proximity Sensor, Magnetometer (eCompass), Acceleration Sensor (3-axis accelerometer with MEMS gyroscope), Gyro, HALL (for hot swap). | |
| Wireless WAN (WWAN) | GPS | GPS, A-GPS, GLONASS, Galileo, Beidou |
| Cellular Standards | LTE, WCDMA, GSM | |
| Radio Frequency Band | GSM: B2/B3/B5/B8; WCDMA: B1/B2/B4/B5/B8; TDD-LTE: B34/B38/B39/B40/B41(120M); FDD-LTE: B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B19/B20/B25/B26/B28AB/B66 | |
| User Environment | Operating Temperature | -20°C to 60°C (-4°F to 140°F) |
| Storage Temperature | -30°C to 70°C (-22°F to 158°F) | |
| Humidity | 5% to 95% non-condensing | |
| Drop Test Report | 6 ft./1.8 m. multiple drops to concrete over operating temp (certified test report) | |
| Tumble Test Report | 300 3.2ft./1.0m tumbles | |
| Sealing | IP67 class protection from water, dust, dirt | |
| Vibration | 13000±3000 rpm | |
| Electrostatic Discharge (ESD) | ±15 kV air discharge; ±8 kV direct discharge |
8. Maintenance
8.1. Cleaning the Device
- Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe the device.
- Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the device's surface and seals.
- Ensure all ports are closed before cleaning to maintain IP67 sealing.
8.2. Battery Care
- Charge the battery fully before first use.
- Avoid exposing the battery to extreme temperatures.
- If the device will not be used for an extended period, store it with a partial charge (around 50%) in a cool, dry place.
- The hot-swap feature allows for battery replacement without powering down the device, minimizing downtime.
9. Troubleshooting
9.1. Common Issues and Solutions
- Device not powering on: Ensure the battery is correctly installed and charged. Connect the device to the charger and try again.
- Scanning issues: Check if the scanning application is open. Ensure the barcode is clean and well-lit. Verify the scan engine is not obstructed.
- Connectivity problems (Wi-Fi/Cellular): Check network settings and ensure you are within range. Restart the device and try reconnecting.
- Device unresponsive: Perform a soft reset by pressing and holding the Power button for approximately 10-15 seconds until the device restarts.
9.2. Software Development Kit (SDK)
For software-related issues or custom development, a free SDK is available. Contact MEFERI support for access and assistance.
10. User Tips
- Optimize Battery Life: Utilize the Energy Booster feature and take advantage of the hot-swap battery technology to ensure continuous operation throughout long shifts.
- Seamless Data Flow: Leverage the advanced WLAN features and seamless Wi-Fi roaming for uninterrupted data transmission, crucial for real-time logistics and inventory management.
- Custom Keypad: Program the custom function buttons on the physical keypad for quick access to your most used applications or scanning modes, enhancing workflow efficiency.
11. Warranty and Support
The MEFERI ME40K comes with a 1-year warranty, excluding the battery and screen. For any issues, please refer to the following:
- Software Issues: Technical support is available online to assist with software-related problems.
- Hardware Issues (within warranty): If a hardware issue arises that is not due to human error, free replacement parts will be provided, or the device may be replaced directly.
- Contact Support: For further assistance, please contact MEFERI customer service.
12. Certifications
The MEFERI ME40K complies with various international standards and holds the following certifications:
Figure 6: Overview of Product Certifications
- CE: Conformité Européenne (European Conformity)
- FCC: Federal Communications Commission
- UN38.3: United Nations Manual of Tests and Criteria for Lithium Batteries
- RoHS: Restriction of Hazardous Substances
- ISO 9001: Quality Management Systems
- SRRC: State Radio Regulation Committee (China)
Figure 7: RoHS Certificate
Figure 8: CE Certificate
Figure 9: FCC Certificate
Figure 10: MSDS for Polymer Battery
