1. Introduction
This manual provides instructions for the safe and effective use of the GOYOJO GW192K Thermal Imager. The GW192K is a portable thermal camera designed for various applications including electrical diagnostics, home maintenance, mechanical equipment inspection, and building inspections. It features a 192x192 (upscaled from 96x96 native) infrared resolution, a 3.5-inch touchscreen, and a 25 Hz frame rate for real-time thermal imaging.
2. Safety Information
Read all safety warnings and instructions before using this product. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Do not expose 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.
- Use only the provided charging cable and adapter.
- Keep the device away from water and other liquids.
- Avoid direct eye exposure to the LED work light.
3. Package Contents
Verify that all items are present in the package:
- GOYOJO GW192K Thermal Imager
- Charging Cable (USB-C)
- Carrying Case
- Wrist Strap / Belt Clip
- User Manual (this document)
4. Product Overview
The GOYOJO GW192K is a compact and robust thermal imager designed for detailed temperature analysis. It integrates both infrared and visible light cameras to provide comprehensive imaging capabilities.
Figure 4.1: Front view of the GOYOJO GW192K Thermal Imager, showing the 3.5-inch touchscreen display with a thermal image of an electrical panel. The screen indicates central, maximum, and minimum temperature readings.
Figure 4.2: Back view of the GOYOJO GW192K Thermal Imager, highlighting the visible light camera lens and the integrated LED work light.
Key Features:
- High Resolution Imaging: 192x192 (upscaled) IR resolution with 36,860 pixels for detailed thermal data. Native resolution is 96x96.
- Precise Thermal Sensitivity: Detects temperature changes as small as <0.04°C (NETD<40 mK).
- Wide Temperature Range: Measures temperatures from -20°C to 350°C.
- Full Spectrum Temperature Measurement: Displays Max, Min, and Center Spot temperatures.
- Integrated LED Work Light: Illuminates dark areas for improved visual inspection.
- Audio and Visual Alarms: Alerts users to out-of-range temperatures.
- Video Recording: Records thermal and visual video (.mp4 format).
- Digital Zoom: Continuous 1.0x to 4.0x digital zoom with 0.1x increments.
- User-Friendly Interface: 3.5-inch touchscreen LCD for intuitive operation.
- Robust Storage: 4GB eMMC flash memory stores approximately 30,000 thermal images or 20 hours of video.
- Long Battery Life: Integrated Li-ion battery provides up to 4 hours of continuous operation.
- Real-time Functionality: 25 Hz frame rate for smooth, real-time thermal feedback.
- Wi-Fi Connectivity: Supports Wi-Fi hotspot for data transfer and app connectivity.
5. Setup
5.1 Charging the Battery
The device comes with a built-in rechargeable Lithium-ion battery. Before first use, fully charge the device.
- Connect the USB-C charging cable to the device's charging port.
- Connect the other end of the cable to a compatible USB power adapter (not always included) or a computer's USB port.
- The charging indicator on the device will show the charging status. A full charge takes approximately 2.5 hours (1.5 hours for 94% charge).
5.2 Powering On/Off
- To power on: Press and hold the power button located on the top of the device until the screen illuminates.
- To power off: Press and hold the power button until a shutdown prompt appears on the screen. Confirm to power off.
6. Operating Instructions
6.1 Basic Operation
The GW192K features a 3.5-inch touchscreen for navigation and control. Tap icons to access different functions and settings.
Figure 6.1: A user holding the GOYOJO GW192K, demonstrating its use for inspecting a radiator. The screen shows a thermal image with temperature readings, illustrating the device's thermal sensitivity and refresh rate.
6.2 Image Modes
The device supports several image modes:
- Thermal: Displays only the infrared image.
- Visible Light: Displays only the image from the visible light camera.
- Dual Light Fusion: Overlays the thermal image onto the visible light image for enhanced detail and context.
- Picture-in-Picture: Displays a smaller thermal image window within the visible light image.
To switch modes, tap the corresponding icon on the touchscreen interface.
Figure 6.2: Two hands holding the GOYOJO GW192K, focusing on an electrical distribution cabinet. The thermal display highlights potential hot spots, demonstrating its utility for early detection of hidden dangers in electrical systems.
6.3 Temperature Measurement
The GW192K provides real-time temperature readings:
- Center Spot: Displays the temperature at the center of the screen.
- Max/Min Spot: Automatically identifies and displays the maximum and minimum temperatures within the field of view.
Adjust emissivity settings for accurate temperature readings on different surfaces. This setting can typically be found in the device's menu.
6.4 Capturing Images and Videos
- To capture an image: Press the dedicated capture button or tap the camera icon on the screen. Images are saved to the internal 4GB eMMC storage.
- To record video: Tap the video recording icon. Tap again to stop recording. Videos are saved in .mp4 format.
6.5 Digital Zoom
Use the digital zoom function to magnify the image from 1.0x to 4.0x in 0.1x increments. This allows for closer inspection of specific areas.
6.6 Wi-Fi Connectivity
The device supports Wi-Fi connectivity for data transfer and advanced analysis via the 'GOYOJO Viewer' application.
- Activate the Wi-Fi hotspot feature in the device settings.
- Connect your smartphone or computer to the device's Wi-Fi network.
- Use the 'GOYOJO Viewer' app (download separately) to access advanced thermal analysis features and transfer data.
7. Maintenance
7.1 Cleaning the Device
- Ensure the device is powered off before cleaning.
- Wipe the device body with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Gently clean the camera lenses with a lens cleaning cloth.
7.2 Storage
When not in use, store the device in its carrying case in a cool, dry place, away from direct sunlight and extreme temperatures.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low battery. | Charge the device fully. |
| Screen is unresponsive. | Software glitch. | Perform a soft reset by holding the power button for an extended period (e.g., 10-15 seconds) until the device restarts. |
| Inaccurate temperature readings. | Incorrect emissivity setting; distance to object too far. | Adjust emissivity in settings. Ensure appropriate measurement distance. |
| Cannot connect to Wi-Fi. | Wi-Fi hotspot not activated; incorrect password. | Ensure Wi-Fi hotspot is enabled on the device. Verify Wi-Fi password if applicable. |
| Images/videos not saving. | Storage full. | Delete unnecessary files to free up storage space. |
9. Specifications
| IR Resolution | 96 x 96 (192 x 192 with Super Resolution) |
| Temperature Range | -20°C to 350°C (-4°F to 662°F) |
| Accuracy | ±2°C or ±2% of reading (whichever is greater) |
| Thermal Sensitivity (NETD) | <0.04°C (<40 mK) @ 25°C, F#=1.0 |
| Frame Rate | 25 Hz |
| Detector Type | Uncooled Detector |
| Spectral Range | 7.5 ~ 14 µm |
| Focal Length | 1.35 mm |
| Minimum Measurement Distance | 10 cm |
| Spatial Resolution (IFOV) | 8.89 mrad |
| Measurement Rules | Center Spot, Max Temperature, Min Temperature |
| Visible Light Camera | 640 x 480 pixels (max image size) |
| Digital Zoom | 1X ~ 4X (0.1X increments) |
| Display | 3.5-inch Touchscreen LCD, 320 x 240 resolution |
| Image Modes | Thermal, Visible Light, Dual Light Fusion, Picture-in-Picture |
| Pseudo-Color Modes | 8 modes (e.g., Rainbow, Iron Red, Blue Red) |
| Storage | 4GB eMMC Flash Memory (approx. 30,000 images or 20 hours video) |
| Battery Type | 3.85V, 2100 mAh Li-ion (integrated) |
| Battery Life | Up to 4 hours continuous operation |
| Charging Time | 1.5 hours (94% charge), 2.5 hours (full charge) |
| Connectivity | Wi-Fi, USB-C |
| Special Features | LED Work Light, Audio Alarm, Flash Alarm, UVC Streaming, Text Annotation |
| Dimensions | 138.45 mm × 85.2 mm × 23.65 mm |
| Weight | 218 g |
10. Warranty and Support
10.1 Warranty Information
GOYOJO products typically come with a standard manufacturer's warranty. Please refer to the warranty card included with your product or visit the official GOYOJO website for detailed warranty terms and conditions. Keep your proof of purchase for warranty claims.
10.2 Customer Support
For technical assistance, troubleshooting, or service inquiries, please contact GOYOJO customer support. Contact information can usually be found on the product packaging, the official GOYOJO website, or within the 'GOYOJO Viewer' application.
When contacting support, please have your product model (GW192K) and purchase details ready.
