Introduction
The MASTFUYI FY12DMM is an advanced 2-in-1 thermal imager and multimeter designed for professionals. It combines high-resolution thermal imaging with comprehensive multimeter functions, offering a versatile tool for various diagnostic and inspection tasks. Its intuitive 3.98-inch capacitive touchscreen and multi-language support ensure ease of use across different applications.
Image: MASTFUYI FY12DMM Thermal Imaging Multimeter 2-in-1, highlighting key features.
Package Contents
Upon opening your MASTFUYI FY12DMM package, please ensure all the following items are present:
- MASTFUYI FY12DMM Thermal Imager Multimeter Unit
- Test Leads (Red and Black)
- Thermocouple Probe
- USB Type-C Cable
- Protective Bag
- User Manual
Image: Standard package contents for the FY12DMM model.
If you purchased a package including the macro lens, please also verify the presence of the macro lens accessory.
Image: Macro lens package contents for the FY12DMM model.
Setup Guide
1. Charging the Device
The FY12DMM is equipped with a built-in 3.7V 2500mAh rechargeable lithium battery. Before initial use, or when the battery indicator shows low power, charge the device using the provided USB Type-C cable.
- Connect the USB Type-C cable to the USB Port (1) on the device.
- Connect the other end of the cable to a suitable USB power adapter (not included) or a computer's USB port.
- The Indicator Light (2) will show red during charging and turn green when fully charged.
Image: Illustration of charging the device via USB Type-C.
2. Powering On/Off
Press and hold the Power Button (3) to turn the device on or off.
3. Language Selection
The device supports 7 national languages. To select your preferred language:
- Power on the device.
- Navigate to the settings menu (usually indicated by a gear icon).
- Select 'Language' and choose from English, Español, Deutsch, Français, Italiano, Japanese, or Chinese.
Image: Language selection screen showing available languages.
Operating Instructions
Device Overview and Controls
Image: Labeled diagram of the device's ports and buttons.
- 1. USB Port: USB Type-C interface for charging or data transfer.
- 2. Indicator Light: Red light on during charging; green light on when fully charged.
- 3. Power Button: Press and hold to turn on/off; short press to save the picture in the power on state.
- 4. Display Screen: 3.98-inch TFT capacitive touch screen.
- 5. Multifunction Key: Short-press: Menu/Confirm key; long-press: Switch between thermal imager and multimeter; slide up/down for function switching.
- 6. Coil Input Terminal: Flexible current clamp input port (additional accessories required).
- 7. COM: Multimeter probe negative input port.
- 8. INPUT: Multimeter probe positive input port.
- 9. Thermal imaging sensor: Captures thermal images.
Switching Between Thermal Imager and Multimeter Modes
Long-press the Multifunction Key (5) to switch between the thermal imaging mode and the multimeter mode.
Multimeter Functions
The FY12DMM offers a wide range of multimeter functions. Use the vertical sliding motion on the Multifunction Key (5) or the touch-sensitive buttons on the screen to select different measurement gears.
Image: Labeled diagram of the multimeter display and controls.
- Gear Display: Shows the current gear mode.
- Time Display: Displays current time.
- Peak Hold Mode: Short-press menu key or tap gear icon in voltage mode to activate (AC voltage only).
- Battery Status: Indicates battery level and charging status.
- USB Icon: Shows USB connection status.
- Measurement Unit: Displays unit symbols (e.g., V, Ω, F).
- Measurement Value: Shows real-time measurement data.
- Mode Symbol: Indicates active gear symbol (e.g., AC, DC).
- Pause/Refresh: Displays measurement range of the current gear.
- Max Value: Shows highest recorded measurement.
- Min Value: Shows lowest recorded measurement.
- Average Value: Displays mean of measurements.
- Gear Range: Displays measurement range of the current gear.
- Touch-sensitive button for gear selection: Tap to select measurement functions.
The multimeter supports measurements including DC Voltage, AC Voltage, Resistance, Capacitance, Diode Test, Continuity Test, and Temperature. It features 19999 counts True RMS for accurate readings and smart burnout protection.
Image: Illustration of the 19999 counts True RMS feature.
Image: Examples of AC and DC voltage measurements.
Image: Examples of capacitance, resistance, diode, and circuit on-off detection measurements.
Thermal Imaging Functions
The thermal imager provides a 320x320 pixel resolution display on its 3.98-inch capacitive touchscreen. It is ideal for identifying heat sources and temperature anomalies.
Image: Main product image showing thermal imaging and multimeter display.
Image: Close-up of the 3.98-inch capacitive touch screen.
Image: Table detailing thermal imaging parameters.
Thermal Imaging Display Elements:
Image: Labeled diagram of the thermal imaging display.
- 1. Time Display: Current time.
- 2. Pseudocolor Name: Name of the active color palette.
- 3. Temperature Data Display: Shows current temperature readings.
- 4. Battery & Charging Status: Battery level and charging status.
- 5. USB Connection Symbol: Indicates USB connection.
- 6. Max Temp Auto-Tracking: Automatically tracks the maximum temperature.
- 7. Center Point Measurement: Displays temperature at the center of the screen.
- 8. Min Temp Auto-Tracking: Automatically tracks the minimum temperature.
- 9. Max Temperature: Highest temperature detected.
- 10. Palette Display: Shows the current color palette.
- 11. Min Temperature: Lowest temperature detected.
- 12. Temperature Unit Symbol: Displays the unit of temperature (e.g., °C, °F).
- 13. Measurement Distance Display: Shows the set measurement distance.
- 14. Emissivity Display: Shows the set emissivity value.
- 15. Settings: Access device settings.
- 16. Pseudocolor Style Switching: Change thermal color palettes.
- 17. Album: View saved images.
- 18. Multimeter Mode Toggle: Switch to multimeter mode.
Color Palettes
The device offers 15 distinct color display modes (palettes) to visualize thermal data. You can switch between these palettes to best highlight temperature differences for your specific application.
Image: Visual representation of the 15 available color palettes.
High/Low Temperature Tracking
The FY12DMM is capable of simultaneously detecting and automatically tracking maximum, minimum, and central temperatures within the thermal image, aiding in quick identification of critical areas.
Image: Display showing high, low, and central temperature tracking.
Adjustable Emissivity and Measurement Distance
For accurate temperature readings, especially on different materials, the emissivity can be adjusted from 0.01 to 1.00. The measurement distance is also adjustable from 0.3m to 3m.
Image: Diagram illustrating adjustable emissivity and measurement distance, including a common emissivity reference table.
One-Touch Photo Capture
Press the Power Button (3) briefly to automatically save the current thermal image or multimeter screenshot. The device has a built-in 4GB memory card capable of storing up to 30,000 BMP format image files.
Image: Demonstration of one-touch photo capture.
Image: Illustration of the built-in 4GB memory card and its capacity.
Connecting to a Computer
Saved images (BMP format) can be connected to a computer via the USB Type-C cable for analysis and transfer.
Video: Product demonstration showing thermal imaging applications (circuit inspection, engine inspection, hot-water pipeline measurement) and multimeter functions (DC/AC voltage, capacitance measurement, function switching, screenshot saving).
Applications
The FY12DMM is suitable for a wide range of scenarios, including:
- Floor heating and pipeline inspection
- Automotive engine inspection
- Circuit board inspection and electronic component analysis
- Electrical system inspection
- Metallurgical inspection
- General maintenance checks
Image: Examples of various application scenarios for the device.
Image: Thermal imaging used to detect leaks in underfloor heating pipes.
Image: Microscopic detection at component level (macro lens not standard).
Specifications
General Specifications
- Screen Size: 3.98-inch capacitive touch screen
- Battery: Built-in 3.7V 2500mAh rechargeable lithium battery
- Working Duration: >5 hours (at 25°C)
- Charging Time: <3 hours
- Boot Speed: Approx. 3 seconds
- Automatic Shutdown: Off (default), configurable (10, 20, 30, 40, 50, 60 minutes)
- Operating Temperature: -10°C to 50°C
- Storage Temperature: -40°C to 70°C
- Working Humidity: ≤85%RH (non-condensing)
- Product Size: 169*81*26.8 mm
- Product Weight: 270.7 g
- Certification: CE, FCC
- Multilingual Support: English, Spanish, German, French, Italian, Japanese, Chinese
Multimeter Parameters
Image: Detailed table of multimeter parameters.
| Feature | Range | Resolution |
|---|---|---|
| DC Voltage (V) | 2.0000V, 20.000V, 200.00V, 1000V | 0.0001V, 0.001V, 0.01V, 0.1V |
| DC Voltage (mV) | 20.000mV, 200.00mV | 0.001mV, 0.01mV |
| AC Voltage (V) | 2.0000V, 20.000V, 200.00V, 750V | 0.0001V, 0.001V, 0.01V, 0.1V |
| AC Voltage (mV) | 20.000mV, 200.00mV | 0.001mV, 0.01mV |
| Resistance | 200.00Ω, 2.0000KΩ, 20.000KΩ, 200.00KΩ, 2.0000MΩ, 20.000MΩ, 200.00MΩ | 0.01Ω, 0.0001KΩ, 0.001KΩ, 0.01KΩ, 0.0001MΩ, 0.001MΩ, 0.01MΩ |
| Capacitance | 9.999nF, 99.99nF, 999.99nF, 9.999μF, 99.99μF, 999.99μF, 10mF | 0.001nF, 0.01nF, 0.1nF, 0.001μF, 0.01μF, 0.1μF, 0.001mF |
| Flexible Current clamp AC Current (A) | 200.0A, 2000A | 0.1A, 1A |
| Temperature | (-20~1300)°C, (-4~2372)°F | 1°C, 1°F |
| Diode Test | YES | ✓ |
| Continuity Test | YES | ✓ |
Thermal Imaging Parameters
Image: Detailed table of thermal imaging parameters.
| Feature | Description |
|---|---|
| Sensor Type | Vanadium oxide (Vox) microbolometer |
| Response Band | 8-14 microns |
| Thermal Image Resolution | 320x320 pixels |
| Noise Equivalent Temperature Difference (NETD) | ≤60 mK (@25°C, F/1.0) |
| Angle of View (FOV) | 50.0° (H) x 50.0° (V) / 72.1° (D) |
| Spatial Resolution | 8.89 mrad |
| Frame Frequency | 25Hz |
| Imaging Lens Focal Length | 1.35 mm |
| Temperature Measurement Focal Length | Adjustable from 0.3m to 3m |
| Temperature Range | -20°C ~ 550°C |
| Temperature Measurement Accuracy | ±2°C or readout ±2% (take a larger reading) |
| Thermometric Unit | Degrees Celsius, Degrees Fahrenheit, Kelvin |
| Temperature Resolution | 0.1°C |
| Emissivity | Adjustable from 0.01 to 1.00 |
| Thermometric Display | Center point temperature measurement, high and low temperature tracking |
| Display Screen | 3.98" TFT capacitive touch screen |
| Switches | White Heat, Black Heat, Fusion 1, Rainbow, Fusion 2, Iron Red 1, Iron Red 2, Deep Brown, Color 1, Color 2, Fire and Ice, Rain, Green Heat, Red Heat, Deep Blue |
| Key | Power key, up key, down key, back key, trigger key |
| Temperature Alarm | Screen font color alarm |
| Image Storage | Built-in memory card |
| Number of Image Files | 30000 |
| Image Format | BMP picture |
| Focusing Mode | Non-focusing |
| Hardware Interface | Type-C USB |
Maintenance
- Cleaning: Use a soft, dry cloth to clean the device. For stubborn dirt, a slightly damp cloth with mild soap can be used, ensuring no liquid enters the device.
- Storage: Store the device in its protective bag in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods.
- Software Updates: Check the manufacturer's website periodically for any available firmware updates to ensure optimal performance and new features.
- Physical Protection: The device features a drop-proof protective case. However, avoid unnecessary drops or impacts to prevent damage.
Image: Device design highlighting the drop-proof protective case.
Troubleshooting
- Device not powering on: Ensure the battery is sufficiently charged. Connect to a power source using the USB Type-C cable and try again.
- Inaccurate temperature readings: Verify that the emissivity setting is appropriate for the material being measured. Adjust the measurement distance as needed.
- Screen unresponsive: If the capacitive touchscreen is unresponsive, try restarting the device. Ensure the screen is clean and dry.
- Multimeter readings are 'O.L' (Overload): The measured value exceeds the selected range. Switch to a higher range or verify the connection.
- Cannot save images: Check if the internal memory is full. Connect to a computer to transfer or delete old files.
User Tips
- Emissivity Adjustment: Always adjust the emissivity setting to match the material you are inspecting for the most accurate thermal readings. Refer to the provided emissivity reference table in the manual or on the device.
- Optimal Measurement Distance: For thermal imaging, maintain an appropriate measurement distance (0.3m-3m) to ensure clear and accurate thermal images.
- Regular Data Backup: Periodically connect your device to a computer to back up important thermal images and multimeter data.
- Explore Color Palettes: Experiment with the 15 different color palettes to find the one that best highlights the temperature differences relevant to your specific inspection task.
- Utilize Auto-Tracking: Leverage the high/low temperature auto-tracking feature to quickly identify the hottest and coldest spots in an area, which can be crucial for diagnostics.
Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official MASTFUYI website. Keep your proof of purchase for warranty claims.
