Feelelec FE20 Handheld Infrared Thermal Imager

1. Introduction

The Feelelec FE20 is a high-definition handheld infrared thermal imager designed for industrial-grade accurate temperature measurement. It is an essential tool for various applications including circuit testing, leak detection, equipment maintenance, and general inspection tasks. This manual provides detailed instructions for the safe and effective use of your FE20 thermal imager.

2. Key Features

• High Definition Imaging: Industrial-grade accurate temperature measurement.
• Display: 3.5-inch LCD large screen with 320x480 resolution.
• Infrared Resolution: 256x192 HD infrared resolution.
• Temperature Range: -20°C to +550°C (-4°F to 1022°F).
• Color Palettes: 15 false colors freely switchable, including White Hot, Black Hot, Fusion 1, Rainbow, Fusion 2, Iron Red 1, Iron Red 2, Dark Brown, Color 1, Color 2, Ice Fire, Rain, Green Hot, Red Hot, Dark Blue.
• Laser Positioning: For precise targeting of measurement areas.
• Multi-point Temperature Measurement: Real-time display of highest, lowest, and center temperatures.
• Automatic High and Low Temperature Tracking: Automatically identifies and tracks extreme temperatures.
• Over-temperature Alarm: Provides sound and light prompts for critical temperature thresholds.
• Adjustable Emissivity: Range of 0.01-1.00, default 0.95, for accurate readings on various surfaces.
• One-Key Screenshot: Quickly capture thermal images.
• Data Management: Supports on-machine position software and USB fast image reading for data reproduction.
• Battery: Built-in 2000mAh 18650 lithium battery, offering 6-8 hours of ultra-long battery life.
• Charging: Convenient Type-C charging port.

3. Setup and Installation

3.1 Unpacking and Initial Inspection

Carefully unpack the Feelelec FE20 thermal imager and all accessories. Verify that all items are present and undamaged:

• Feelelec FE20 Thermal Imager
• USB Cable
• User Manual (this document)
• Product Qualification Certificate
• Memory Card (standard 4G, supports up to 64G TF card)

3.2 Charging the Battery

The FE20 is equipped with a built-in 2000mAh 18650 lithium battery. Before first use, fully charge the device using the provided USB Type-C cable and a compatible power adapter (not included). The charging port is located on the device, as shown in the function button diagram.

• Connect the USB Type-C cable to the imager's USB interface.
• Connect the other end of the USB cable to a power source.
• The device will indicate charging status on the screen.
• A full charge provides approximately 6-8 hours of continuous operation.

3.3 Inserting the Memory Card

The device supports a removable TF card (standard 4G included, maximum support 64G) for storing images and data. The SD card slot is located on the side of the device.

• Locate the SD card slot cover.
• Gently open the cover and insert the TF card with the contacts facing the correct direction until it clicks into place.
• Close the cover securely.

4. Operating Instructions

4.1 Device Layout and Controls

Familiarize yourself with the buttons and ports on your FE20 thermal imager:

• Power Button (Long Press): Located on the handle, long press to power on/off the device.
• Menu Button (Short Press): Located on the handle, short press to access the main menu.
• Pseudo Color Switch / Up Move Button: Used to cycle through color palettes or navigate up in menus.
• Image Freeze / Return Button: Used to freeze the current thermal image or return to the previous screen/menu.
• Temperature Record (Short Press) / Clear Record (Long Press) / Right Move Button: Short press to record temperature data, long press to clear records, or navigate right in menus.
• Pseudo Color Switch / Move Down Button: Used to cycle through color palettes or navigate down in menus.
• Laser Button: Press to turn on the laser light for targeting. Release to take a screenshot.
• LED Lights: Provides illumination for visual inspection.
• Thermal Imaging Lens: Captures infrared radiation.
• USB Interface: For charging and data transfer.
• SD Card Slot: For memory card insertion.
• Reset Button: For device reset if needed.

4.2 Basic Operation

1. Power On: Long press the power button until the screen illuminates.
2. Real-time Imaging: The device will display a real-time thermal image. The screen will show the center, maximum, and minimum temperatures.
3. Adjusting Color Palettes: Use the Pseudo Color Switch buttons to cycle through the 15 available color palettes to best visualize temperature differences for your application.
4. Using the Laser: Press the Laser button to activate the laser pointer for precise targeting.
5. Taking a Screenshot: Release the Laser button after pressing it to capture a screenshot of the current thermal image.
6. Recording Temperature: Short press the Temperature Record button to save temperature data.
7. Accessing Album: Navigate to the album interface to view saved images and data.
8. Over-temperature Alarm: If an object exceeds a set temperature threshold, the device will trigger a sound and light alarm.
9. Power Off: Long press the power button until the device shuts down.

4.3 Data Transfer to Computer

To transfer images and data to a computer:

• Connect the FE20 to your computer using the provided USB cable.
• The device should appear as a removable storage device on your computer.
• You can then access and copy the stored images and temperature data from the memory card.

5. Maintenance

• Cleaning: Use a soft, dry cloth to clean the device body. For the thermal imaging lens and display screen, use a lens cleaning cloth and appropriate cleaning solution to avoid scratches.
• Storage: Store the device 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, especially if it will be stored for an extended period.
• Software Updates: Check the manufacturer's website periodically for any available firmware updates.

6. Troubleshooting

• Device not powering on: Ensure the battery is sufficiently charged. If not, connect to a power source using the USB Type-C cable.
• Image is blurry or unclear: Check if the thermal imaging lens is clean. Ensure the object is within the optimal measurement distance.
• Inaccurate temperature readings: Verify that the emissivity setting is appropriate for the surface being measured. Refer to common emissivity tables if unsure.
• Device unresponsive: Use a small pin or paperclip to press the Reset button located near the SD card slot. This will restart the device without losing data.
• Cannot transfer files to computer: Ensure the USB cable is securely connected to both the device and the computer. Check if the computer recognizes the device as a storage drive.

7. Specifications

The following table details the technical parameters of the Feelelec FE20 thermal imager:

8. User Tips

• For best results in identifying subtle temperature variations, experiment with different color palettes. Some palettes are better suited for specific applications than others.
• When inspecting reflective surfaces, adjust the emissivity setting for more accurate temperature readings.
• Utilize the laser pointer to precisely identify the target area for temperature measurement, especially in complex environments.
• Regularly back up your captured images and data to a computer to prevent loss.

9. Warranty and Support

Your Feelelec FE20 thermal imager comes with the following support:

• Warranty: 1 year of free repairs from the date of purchase.
• After-Sales Service: Lifetime after-sales service, including 1-on-1 technical guidance.
• Returns/Exchanges: 7 days no-reason return or exchange policy.

For technical assistance or warranty claims, please contact Feelelec customer support through the vendor's official channels.