1. Introduction
The INFURIDER YF-985B is a non-contact infrared laser thermometer designed for accurate surface temperature measurements across a wide range. It is suitable for various applications including industrial settings, HVAC systems, cooking, and automotive maintenance. This manual provides essential information for safe and effective operation of your device.
Image 1.1: The INFURIDER YF-985B Infrared Laser Thermometer, a handheld device with a blue and black casing, featuring an LCD display and control buttons.
2. Safety Information
Please read all safety warnings and instructions carefully before using this product. Failure to follow these instructions may result in injury or damage to the device.
- NOT FOR HUMAN TEMPERATURE MEASUREMENT: This device is designed for industrial and surface temperature measurements only. It is not intended for measuring human or animal body temperature.
- LASER SAFETY: This product uses a Class II laser. Do not stare directly into the laser beam or point it at people or animals. Avoid direct eye exposure. The laser output is less than 0.5 mW with a wavelength of 630~670 nm.
- ELECTRICAL SAFETY: Do not expose the device to water or extreme humidity. Do not attempt to disassemble or modify the device.
- BATTERY SAFETY: Ensure correct battery polarity when installing. Remove batteries if the device will not be used for an extended period. Dispose of used batteries responsibly.
- ENVIRONMENTAL CONSIDERATIONS: Do not use the device in environments with explosive gases, steam, or dust.
Image 2.1: Visual warning indicating the infrared thermometer is not for human temperature measurement.
3. Package Contents
Upon opening the package, please verify that all items listed below are present and in good condition:
- INFURIDER YF-985B Infrared Laser Thermometer
- 9V Battery
- User Guide (this manual)
- Carabiner
- Small Screwdriver (for battery compartment)
- Zipper Bag / Carrying Case
Image 3.1: The complete package contents of the INFURIDER YF-985B Infrared Laser Thermometer.
4. Product Features
The INFURIDER YF-985B is equipped with several features to enhance its functionality and ease of use:
- Dual Laser Pointers: For precise targeting and improved accuracy.
- Wide Temperature Range: Measures from -50°C to 1360°C (-58°F to 2480°F).
- Fast Response Time: Obtains measurements in approximately 0.25 seconds.
- Distance-to-Spot Ratio (D:S): 16:1, allowing accurate measurements from a safe distance.
- Adjustable Emissivity: (0.1-1.0) for accurate readings on various surface materials.
- LCD Backlight Display: For clear visibility in low-light conditions.
- Flashlight Function: Aids in illuminating the target area.
- Measurement Modes: Includes MAX (Maximum), MIN (Minimum), AVG (Average) temperature monitoring.
- High/Low Temperature Alarms: User-settable alarms with audible notifications.
- Unit Conversion: Easily switch between Celsius (°C) and Fahrenheit (°F).
Image 4.1: The front of the thermometer highlighting the built-in double laser pointer and flashlight for precise measurement.
Image 4.2: The LCD backlight display of the thermometer, showing temperature and emissivity settings.
5. Setup
5.1 Battery Installation
The INFURIDER YF-985B requires one 9V battery for operation. Follow these steps to install the battery:
- Locate the battery compartment cover on the handle of the thermometer.
- Use the provided small screwdriver to open the battery compartment.
- Insert a new 9V battery, ensuring the correct polarity (+ and - terminals match the markings inside the compartment).
- Close the battery compartment cover and secure it with the screw.
The device is now ready for use.
6. Operating Instructions
6.1 Taking a Measurement
- Point the thermometer at the target surface. Ensure the target is within the device's distance-to-spot ratio (16:1).
- Press and hold the trigger button. The laser pointers will activate, indicating the measurement area.
- The measured temperature will be displayed on the LCD screen instantly.
- Release the trigger button to hold the reading on the display.
Image 6.1: Demonstrating non-contact temperature measurement of hot objects.
6.2 Distance-to-Spot Ratio (D:S)
The YF-985B has a D:S ratio of 16:1. This means that at a distance of 16 units, the measurement spot diameter will be 1 unit. For accurate readings, ensure the target object is larger than the spot size at your chosen measurement distance.
Image 6.2: Diagram explaining the 16:1 Distance-to-Spot ratio.
6.3 Mode Selection
Press the 'MODE' button to cycle through different measurement functions:
- MAX: Displays the maximum temperature recorded during the measurement session.
- MIN: Displays the minimum temperature recorded during the measurement session.
- AVG: Displays the average temperature recorded during the measurement session.
6.4 Unit Conversion (°C/°F)
To switch between Celsius (°C) and Fahrenheit (°F), press the '°F/UP' button.
6.5 Adjustable Emissivity
Emissivity (ε) is a measure of a material's ability to emit infrared energy. Different materials have different emissivity values. For accurate measurements, adjust the emissivity setting on your thermometer to match the target material. The YF-985B allows adjustment from 0.1 to 1.0.
- Press the 'MODE' button until 'ε' appears on the display.
- Use the 'UP' and 'DOWN' buttons to adjust the emissivity value.
- Refer to common emissivity tables for typical values of various materials.
Image 6.3: Examples of emissivity values for common materials.
6.6 High/Low Temperature Alarms
You can set high and low temperature alarm thresholds. If the measured temperature exceeds the high alarm or falls below the low alarm, an audible alert will sound.
- Consult the detailed instructions in the full user manual for setting specific alarm values.
Image 6.4: The thermometer indicating a high temperature alarm.
7. Maintenance
7.1 Cleaning the Device
To ensure accurate readings and prolong the life of your thermometer, keep it clean:
- Lens Cleaning: The sensor lens is the most delicate part. Clean it with a soft, damp cloth or cotton swab. Do not use abrasive cleaners or solvents.
- Casing Cleaning: Wipe the device casing with a damp cloth and mild soap if necessary. Do not immerse the device in water.
7.2 Storage
When not in use, store the thermometer in its carrying case in a cool, dry place, away from direct sunlight and extreme temperatures. Remove the battery if storing for extended periods to prevent leakage.
8. Troubleshooting
If you encounter issues with your INFURIDER YF-985B, please refer to the following common problems and solutions:
- No Display/Device Not Turning On:
- Check if the 9V battery is installed correctly with the right polarity.
- Replace the battery with a new one if it is depleted.
- Inaccurate Readings:
- Ensure the lens is clean and free from dust or debris.
- Verify that the emissivity setting matches the target material.
- Confirm that the measurement distance is appropriate for the target size (16:1 D:S ratio).
- Avoid measuring through glass or other transparent surfaces, as infrared thermometers measure the surface temperature of the glass itself.
- Laser Not Working:
- Check if the laser function is enabled (refer to the full manual for specific button presses).
- Ensure the battery has sufficient power.
For further assistance, please contact INFURIDER customer support.
9. Specifications
| Feature | Specification |
|---|---|
| Model Number | YF-985B |
| Temperature Range | -50°C to 1360°C (-58°F to 2480°F) |
| Accuracy | +/- 2% (typical) |
| Distance-to-Spot Ratio (D:S) | 16:1 |
| Response Time | 0.25 seconds |
| Emissivity | Adjustable (0.1-1.0) |
| Laser Type | Class II, <0.5 mW, 630~670 nm |
| Display Type | LCD with Backlight |
| Power Source | 1 x 9V Battery (included) |
| Material | Plastic |
| Certifications | CE Compliant |
10. Warranty and Support
10.1 Warranty Information
INFURIDER offers a 365-day warranty for the YF-985B Infrared Laser Thermometer from the date of purchase. This warranty covers manufacturing defects and ensures 100% after-sales service. Please retain your proof of purchase for warranty claims.
10.2 Customer Support
If you have any questions, concerns, or require technical assistance with your INFURIDER YF-985B, please do not hesitate to contact our customer support team. You can typically find contact information on the INFURIDER official website or through the retailer where you purchased the product.