UNI-T UTi120S Handheld Thermal Imager User Manual

1. Introduction

The UNI-T UTi120S is a professional handheld thermal imager designed for accurate temperature measurement and thermal analysis. It is an essential tool for identifying electrical or mechanical hot spots, making it suitable for a wide range of industrial and maintenance applications. This manual provides detailed instructions for the safe and effective use of your device.

Figure 1: UNI-T UTi120S Thermal Imager in operation.

2. Setup

2.1 Unboxing and Components

Carefully unpack the device and verify that all components are present:

• 1 x UNI-T UTi120S IR Thermal Camera
• 1 x USB Type-C Cable
• 1 x 16GB Micro SD Card
• 1 x User Manual
• 1 x Carry Rope

Figure 2: Included components of the UNI-T UTi120S package.

2.2 Initial Charging

Before first use, fully charge the device. Connect the supplied USB Type-C cable to the camera and a 5V/2A (or lower) USB power adapter. The built-in 3.7V/2600mAh lithium battery provides over 9 hours of continuous runtime when fully charged.

2.3 Inserting the Micro SD Card

Locate the Micro SD card slot, typically on the side or bottom of the device. Insert the provided 16GB Micro SD card until it clicks into place. This card can store up to 20,000 images (BMP format).

Figure 3: Device components and interfaces, including the USB Type-C port and SD card slot.

3. Operating Instructions

3.1 Power On/Off

Press and hold the Power button (usually marked with a power symbol) to turn the device on or off. The 2.4-inch LCD screen will display the interface upon startup.

3.2 Temperature Measurement

The UTi120S measures temperatures within a range of -20℃ to 400℃ with a resolution of 0.1°C. It features central point temperature measurement and automatic high/low-temperature monitoring. The thermal sensitivity (NETD) is 60mK, and the infrared resolution is 120x90 pixels.

• Emissivity Adjustment: The emissivity is adjustable from 0.01 to 0.99. Adjust this setting based on the material being measured for accurate readings.
• Laser Indicator: The device includes a laser indicator to pinpoint the exact measurement area.
• LED Light: An integrated LED light assists in operating in dark environments.

Figure 4: LED light and laser indicator for enhanced measurement.

3.3 Color Palettes

The UTi120S offers 6 color palettes to visualize thermal images, allowing for clearer views and easier analysis:

• Lava
• Rainbow HC
• Black Heat
• White Heat
• Red Iron Oxide
• Rainbow

Figure 5: Six available color palettes for thermal imaging.

3.4 Image Capture and Storage

To capture a thermal image, press the Image Capture/Trigger button. Images are saved to the inserted 16GB Micro SD card in BMP format. The device supports free focusing for optimal image clarity.

3.5 PC Analysis Software

The UTi120S includes PC analysis software. Connect the device to a computer via the USB Type-C cable to export saved images and perform detailed post-analysis. This software helps in understanding every detail of the captured thermal data.

Figure 6: USB image export and PC connectivity.

4. Applications

The UNI-T UTi120S is designed for a wide range of professional and industrial applications, including but not limited to:

• Electrical equipment maintenance and inspection
• Daily HVAC equipment maintenance
• Factory manufacturing site inspection and equipment maintenance
• Construction applications
• Road traffic and bridge construction
• Transportation industry and automotive maintenance
• Mining and excavation
• Electronic power manufacturing industry
• Oil/chemical fields and foundry

Figure 7: Examples of industrial applications for the thermal imager.

5. Maintenance

5.1 Cleaning

To clean the device, wipe it with a soft, damp cloth. Do not use abrasive cleaners or solvents that could damage the casing or screen.

5.2 Durability and Protection

The UTi120S is built to be robust and durable. It conforms to IP54 standards, offering protection against dust and splashing water. It also features a two-meter drop-proof design, an ergonomic handle, and a non-slip rubber cover for enhanced durability in demanding environments.

Figure 8: IP54 protection level and 2-meter drop resistance.

5.3 Battery Care

To prolong battery life, avoid fully discharging the device frequently. Store the device in a cool, dry place when not in use for extended periods. Recharge the battery periodically if stored for a long time.

6. Troubleshooting

If you encounter issues with your UNI-T UTi120S, consider the following common troubleshooting steps:

• Device not powering on: Ensure the battery is fully charged. Connect the device to a power source using the USB Type-C cable and try again.
• Inaccurate temperature readings: Check and adjust the emissivity setting according to the material being measured. Ensure the lens is clean and free from obstructions.
• Cannot save images: Verify that the Micro SD card is correctly inserted and has sufficient free space.
• Screen not responding: Try restarting the device. If the issue persists, ensure the device is charged.

For further assistance, please refer to the customer support section.

7. Specifications

8. Warranty and Support

8.1 Warranty Information

The UNI-T UTi120S comes with a 6-month worry-free warranty. Additionally, we offer a 30-day unconditional return policy.

8.2 Customer Support

For technical support or any issues with your handheld thermal imager, please contact our friendly customer service team. We are committed to responding to all inquiries within 24 hours.

Please refer to the product packaging or the official UNI-T website for specific contact details.