Introduction
The NJTY Infrared Thermometer Gun Model JD-10 is a high-precision, non-contact temperature measurement device designed for a wide range of applications. This manual provides essential information for safe and effective operation, maintenance, and troubleshooting.
Safety Information
- Laser Safety: This device uses a Class 2 laser. Avoid direct eye exposure to the laser beam. Do not aim the laser at people or animals.
- Not for Human/Pet Use: This thermometer is designed for industrial, automotive, cooking, and general household surface temperature measurements. It is not intended for measuring body temperature of humans or pets.
- Avoid Hazardous Environments: Do not use the thermometer in environments with smoke, glass, or steam, as these can interfere with accurate readings.
- Electrical Safety: Exercise caution when measuring live electrical components. Maintain a safe distance.
- Storage: Store the device in a cool, dry place, away from extreme temperatures and direct sunlight.
Image: The thermometer is not designed for measuring human or pet body temperature.
Product Features
- Wide Temperature Range: Measures from -58°F to 1472°F (-50°C to 800°C).
- Fast and Precise Targeting: Equipped with a 13-point laser system for accurate aiming and a 0.5-second response time.
- Adjustable Emissivity: Fine-tune emissivity from 0.10 to 1.00 for reliable results on various surfaces like metal, wood, and plastic.
- Clear Backlit LCD Display: Shows real-time temperature, maximum/minimum records, battery level, laser status, °C/°F switch, and high/low alarms.
- Non-Contact Measurement: Safely measure temperatures from a distance with a Distance-to-Spot Ratio of 12:1.
- Auto Power-Off: Conserves battery life by automatically shutting off after a period of inactivity.
- Data Hold Function: Freezes the current temperature reading on the display.
Image: Overview of the thermometer's display and key functions.
Image: Detailed illustration of the thermometer's features and benefits.
Package Contents
The package includes:
- NJTY Infrared Thermometer Gun (Model JD-10)
- Temperature measuring gun holster
- 2 x AAA Batteries
- Instruction Manual
Image: All items included in the product package.
Setup
Battery Installation
- Locate the battery compartment on the handle of the thermometer.
- Slide open the battery compartment cover.
- Insert two AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
Video: This video demonstrates the battery installation process and basic operation of the JD-10 Infrared Thermometer.
Operating Instructions
1. Basic Measurement
- Point the thermometer at the target surface.
- Press and hold the trigger to activate the laser and begin scanning. The display will show the real-time temperature.
- Release the trigger to hold the reading on the display.
2. Temperature Unit Switching (°C/°F)
Press the °C/°F button to toggle between Celsius and Fahrenheit units.
Image: Demonstrates how to switch between Celsius and Fahrenheit temperature units.
3. Adjustable Emissivity (EMS)
Emissivity (ε) is the ability of a material to emit energy. Different materials have different emissivity values. For accurate readings, adjust the emissivity setting to match the target material.
- Press the EMS button. The tenths digit of the emissivity setting will flash.
- Use the °C/°F button to increase the value and the EMS button to decrease the value.
- Press MODE to move to the hundredths digit and repeat the adjustment.
- Press MODE again to confirm and complete the setting.
Image: Recommended emissivity values for common materials.
4. Alarm Mode Settings (HAL/LAL)
The thermometer features High Alarm (HAL) and Low Alarm (LAL) modes to alert you when temperatures exceed or fall below set thresholds.
- Press the MODE button repeatedly until HAL or LAL appears on the display.
- Hold the MODE button for approximately 5 seconds. The first digit of the HAL or LAL setting will flash.
- Use the °C/°F button to increase the value and the EMS button to decrease the value.
- Press MODE to move to the next digit and repeat the adjustment.
- Once done, press MODE to confirm the setting.
Image: Setting high and low temperature alarms.
5. Laser On/Off Switch
Press the laser button (triangle icon) to turn the laser pointer on or off. The laser helps in precise targeting.
6. Sound Switch
The device includes a beep symbol on the display. This sound can be turned on or off via the settings, typically by cycling through MODE options or a dedicated button if available.
Applications
The NJTY JD-10 Infrared Thermometer is versatile and suitable for numerous applications:
- Cooking: Ideal for checking temperatures of grills, griddles, ovens, deep fryers, and baked goods.
- Automotive: Useful for measuring engine components, brake discs, and other vehicle parts.
- HVAC: Perfect for identifying hot or cold spots in air vents and HVAC systems.
- Industrial Use: Suitable for monitoring steam pipes, smelters, switchboards, and other industrial machinery.
- Home Use: Can be used for various tasks around the house, such as checking appliance temperatures or insulation efficiency.
Image: Common household and cooking applications.
Image: Automotive and HVAC applications.
Image: Industrial applications.
Important Measurement Tips
- Distance-to-Spot Ratio (D:S): The JD-10 has a D:S ratio of 12:1. This means that from 12 inches away, the measurement area is a 1-inch circle. Ensure your target is larger than the spot size to get accurate readings.
- Avoid Obstructions: Do not measure through smoke, glass, or steam, as these can significantly affect accuracy.
- Measuring Reflective Surfaces: For shiny or reflective surfaces (e.g., polished steel, aluminum), apply a piece of black opaque tape or paint to the surface and measure the temperature of the tape/paint after it has reached thermal equilibrium with the object.
Image: Correct and incorrect measurement practices.
Image: Tip for measuring through glass or on reflective surfaces.
Maintenance
- Cleaning: Use a soft, damp cloth to clean the device. Do not use abrasive cleaners or immerse the device in water.
- Lens Care: The infrared lens is the most delicate part. Clean it gently with a soft cloth or cotton swab and rubbing alcohol.
- Battery Replacement: Replace batteries when the low battery indicator appears on the display.
- Storage: When not in use for extended periods, remove the batteries and store the thermometer in its holster in a dry, dust-free environment.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Inaccurate Readings | Incorrect emissivity setting; Obstruction (smoke, steam, glass); Distance too far; Dirty lens. | Adjust emissivity; Remove obstructions; Move closer to target (within 12:1 D:S ratio); Clean lens. |
| Display Not Working | Low or dead batteries; Incorrect battery installation. | Replace batteries; Check battery polarity. |
| Laser Not Activating | Laser function turned off; Low battery. | Press laser button to activate; Replace batteries. |
Specifications
- Model Name: JD-10
- Temperature Range: -58°F to 1472°F (-50°C to 800°C)
- Temperature Accuracy: ≥100°C, ±2%; <100°C, ±2°C
- Distance-to-Spot Ratio (D:S): 12:1
- Adjustable Emissivity: 0.10-1.00
- Response Time: <0.5 seconds
- Display Type: Digital Backlit LCD
- Power Source: 2 AAA batteries (included)
- Special Feature: Auto Off
- Outer Material: Plastic (TPE + ABS)
- Item Weight: 8.8 ounces
- Item Length: 6.6 inches
Image: Key specifications and physical dimensions of the thermometer.
Warranty and Support
NJTY is committed to quality and reliability. This product comes with Lifetime Customer Support. For any questions, concerns, or assistance, please contact NJTY customer service.
Contact information can typically be found on the product packaging or the official NJTY website.
