1. Introduction
Thank you for choosing the HABOTEST HT821A/HT821A Plus Thermal Imaging Camera. This device is a professional, handheld infrared thermal imager designed for non-contact temperature measurement across a wide range of applications. Its rugged, waterproof, dustproof, and anti-drop design ensures durability in various environments. This manual provides essential information for safe and effective use of your thermal camera.
2. Safety Information
Please read all safety warnings and instructions carefully before using the device to ensure safe operation and prevent damage. Keep this manual for future reference.
- Do not point the camera directly at strong light sources (e.g., the sun, lasers) as this may damage the infrared sensor.
- Avoid exposing the device to extreme temperatures, humidity, or corrosive environments.
- Do not attempt to disassemble or modify the device. Repairs should only be performed by authorized personnel.
- Keep the device away from water and other liquids, unless specifically designed for such conditions (this model is waterproof and dustproof, but avoid submersion).
- Use only the specified charging cable and power adapter.
- Dispose of the battery and device according to local regulations.
3. Package Contents
Verify that all items are present in your package:
- 1x HT821A or HT821AS Infrared Thermal Imager
- 1x Type-C USB Cable
- 1x English User Manual
- 1x Packaging Box
4. Product Overview
The HABOTEST HT821A series features a robust design with intuitive controls and a clear display for efficient thermal imaging. Key features include a 2.8-inch HD LCD screen, a 2000mAh lithium battery, and an 8GB built-in memory card.
4.1. Device Layout and Controls
- LCD Display: 2.8-inch high-definition screen for viewing thermal images and menu options.
- Power On/Off Button: Located below the screen, typically red.
- OK Button: Confirms selections.
- M (Menu) Button: Accesses the main menu.
- Navigation Buttons (Up/Down/Left/Right): Used for menu navigation and selection.
- Return/Cancel Button: Exits menus or cancels operations.
- USB Port (Type-C): For charging and data transfer.
- LED Lighting (HT821A only): Provides illumination for visual inspection.
- Germanium Single Crystal Infrared Lens: The primary thermal sensor.
- Photo Trigger: Captures thermal images.
- 1/4"-20 UNC Screw Hole: For mounting on a tripod.
4.2. Physical Dimensions
5. Setup
5.1. Charging the Battery
The device is equipped with a built-in 2000mAh rechargeable lithium battery. Before first use, fully charge the device.
- Connect the provided Type-C USB cable to the USB port on the device.
- Connect the other end of the USB cable to a compatible USB power adapter (not included) or a computer's USB port.
- The charging indicator on the device will show the charging status. A full charge typically allows for approximately 5 hours of continuous use.
5.2. Memory Card
The device comes with an 8GB built-in memory card for storing thermal images. No external memory card installation is required.
5.3. Powering On/Off
- To Power On: Press and hold the red Power On/Off button until the screen illuminates.
- To Power Off: Press and hold the red Power On/Off button until the device shuts down.
6. Operation
6.1. Basic Temperature Measurement
Once powered on, the device will display a real-time thermal image. The screen will show temperature readings, including maximum, minimum, and center point temperatures within a fixed-area measuring frame.
6.2. Capturing Images
To capture a thermal image, aim the camera at the target and press the Photo Trigger button (located on the handle).
6.3. Menu Navigation and Settings
Press the 'M' (Menu) button to access various settings and modes. Use the Up/Down/Left/Right navigation buttons to scroll through options and the 'OK' button to select. The 'Return/Cancel' button exits the current menu.
6.4. Imaging Modes (Color Palettes)
The device offers multiple color palettes to visualize temperature differences. You can select the most suitable palette for your application:
- Ironbow: A common palette for general use.
- White Hot: Hotter objects appear white.
- Black Hot: Hotter objects appear black.
- Rainbow: Provides a full spectrum of colors for detailed temperature gradients.
6.5. Super-Resolution Mode
The HT821A/HT821A Plus features a Super-Resolution Mode that enhances image resolution from its native 96x96 to 240x240 pixels through technical processing. This mode helps to clearly display object contours and internal structural details for more accurate analysis.
6.6. Unit Switching
You can switch between Celsius (°C), Fahrenheit (°F), and Kelvin (K) temperature units via the device's menu settings.
6.7. Emissivity Adjustment
The device has a default emissivity of 0.01. For more accurate temperature readings on different surfaces, adjust the emissivity setting in the menu to match the material being measured.
6.8. Temperature Alarm
The device supports temperature alarms, which can be configured in the settings to alert you when temperatures exceed or fall below a set threshold.
6.9. Macro Lens (Optional Accessory)
For detailed inspection of small components like PCBs, an optional macro lens can be attached to the device. This enhances the focus and clarity for close-up thermal imaging.
7. Data Transfer
Images stored on the device's 8GB internal memory can be transferred to a computer for viewing and analysis.
- Connect the thermal imaging camera to your computer using the provided Type-C USB cable.
- The device should appear as a removable storage device on your computer.
- You can then access and copy the stored image files (JPG format) from the device to your computer.
8. Maintenance
8.1. Cleaning
- Gently wipe the device body with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- For the infrared lens and screen, use a soft, lint-free cloth specifically designed for optical surfaces. Avoid touching the lens directly with your fingers.
8.2. Storage
- Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
- If storing for an extended period, ensure the battery is partially charged (around 50%) to prolong its lifespan.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low battery. | Charge the device fully using the Type-C USB cable. |
| Image is blurry or unclear. | Lens is dirty; incorrect focus (if applicable); object too close/far. | Clean the lens. Ensure the object is within the optimal measurement range. Consider using the optional macro lens for very close objects. Activate Super-Resolution Mode for enhanced detail. |
| Temperature readings seem inaccurate. | Incorrect emissivity setting; environmental interference. | Adjust the emissivity setting to match the material being measured. Ensure the measurement environment is stable. |
| Cannot transfer files to computer. | Loose USB connection; driver issue. | Ensure the USB cable is securely connected. Try a different USB port or cable. The device should appear as a mass storage device. |
| Confusion about resolution (96x96 vs 240x240). | Misunderstanding of Super-Resolution technology. | The native thermal imaging module resolution is 96x96. The device uses technical processing (Super-Resolution Mode) to extend and display images at 240x240 pixels, enhancing clarity and detail. This is not a native hardware resolution of 240x240 but an enhanced output. |
10. Specifications
| Function | HT821A | HT821AS |
|---|---|---|
| Resolution | 96x96 (Super Resolution: 240x240) | 96x96 (Super Resolution: 240x240) |
| Operating Bandwidth | 8-14um | 8-14um |
| Frame Rate | 25Hz | 25Hz |
| NETD | ≤40 mK@25°C | ≤40 mK@25°C |
| Viewing Angle | 50° x 37.2° | 50° x 37.2° |
| Lens | Lens f=3.2mm | Lens f=3.2mm |
| Temperature Measurement Accuracy | ±2°C or ±2% of the reading, whichever is greater | ±2°C or ±2% of the reading, whichever is greater |
| Temperature Measurement Range | Low Temperature: -20°C to +150°C, High Temperature: +150°C to +550°C | Low Temperature: -20°C to +150°C, High Temperature: +150°C to +550°C |
| Temperature Measurement | Supports full-screen maximum, minimum, and center point temperature measurement | Supports full-screen maximum, minimum, and center point temperature measurement, as well as area temperature measurement. |
| Color Palette | White Heat, Black Heat, High Contrast, Iron Red | White Heat, Black Heat, High Contrast, Iron Red |
| Infrared Effect | Soft, Enhanced, High Contrast | Soft, Enhanced, High Contrast |
| Distance Compensation | Supports 0.5 M, 1 M, 2 M, and 3 M | Supports 0.5 M, 1 M, 2 M, and 3 M |
| Screen Size | 2.8 inches | 2.8 inches |
| Language | Simplified Chinese, Italian, Russian, Japanese, German, English | Simplified Chinese, Italian, Russian, Japanese, German, English |
| Interface | USB Type-C (Supports Charging and Data Transfer) | USB Type-C (Supports Charging and Data Transfer) |
| Battery | 2000mAh Lithium Battery | 2000mAh Lithium Battery |
| Working Hours | When the battery is fully charged, it can be used for approximately 5 hours. | When the battery is fully charged, it can be used for approximately 5 hours. |
| Operating Temperature | -10°C to +60°C | -10°C to +60°C |
| Storage Temperature | -40°C to +85°C | -40°C to +85°C |
| Size | 75 X 105 X 220 mm | 75 X 105 X 220 mm |
| Net Weight | 260 g | 260 g |
| Image Storage Format | JPG | JPG |
| Video Storage Format | None | None |
| Capacity | 8 GB Built-in Memory Card | 8 GB Built-in Memory Card |
11. User Tips
- Clarity for SMD Components: For inspecting small electronic components (SMD), consider purchasing the optional macro lens. This accessory significantly improves the clarity and detail of close-up thermal images, making it easier to identify issues on circuit boards.
- Leak Detection: The thermal imager is effective for detecting leaks in water extensions by identifying temperature anomalies caused by moisture or escaping heat/cold.
- Detecting Objects in Darkness: Thermal cameras detect heat signatures, not visible light. Therefore, they are highly effective at detecting people or animals in complete darkness, as long as there is a temperature difference between the object and its surroundings.
- Image Analysis Software: While the device allows direct image transfer via USB, for advanced analysis and reporting, you may need to use third-party thermal image analysis software on your computer.
12. Warranty and Support
The HABOTEST HT821A/HT821A Plus thermal imaging camera comes with a quality guarantee period of two years. For technical support, warranty claims, or service inquiries, please contact your retailer or the official HABOTEST support channels. Please retain your proof of purchase for warranty validation.