1. Introduction
Thank you for choosing the Mestek Infrared Thermometer. This device is designed for non-contact temperature measurement, offering quick and accurate readings for various industrial, household, and food-related applications. It is important to note that this product is not suitable for measuring body surface, forehead, or baby temperature.
The thermometer features a high-precision sensor, a color HD display, and various models offering additional functionalities such as K-Type temperature probe, environmental temperature and humidity measurement, and dew point detection.
Image: Mestek Infrared Thermometer showcasing humidity measure, -50-800°C range, dew point, mildew, and temperature probe features.
2. Safety Information
- Do not aim the laser directly at eyes or indirectly through reflective surfaces.
- Do not measure through transparent surfaces such as glass or plastic.
- If the environment temperature changes significantly/suddenly, wait for 30 minutes before using the device to allow it to stabilize.
- Ensure batteries are installed correctly and replaced when the low battery warning appears.
- Keep the device away from water and extreme temperatures.
3. Product Overview
3.1 Key Features
- Non-contact safety measurement.
- Fast temperature measurement in 0.5 seconds.
- High-precision sensor with anti-jamming capabilities.
- Color HD display for clearer readings.
- Adjustable emissivity (0.1-1.0, default 0.95).
- 12-point laser positioning for accurate targeting.
- MAX measurement function to lock the highest temperature point.
- Automatic shut-down after 30 seconds of inactivity for energy saving.
- Wear-resistant and drop-proof shell design.
Image: Illustration of the high-accuracy sensor, emphasizing anti-jamming, fast receiving, and higher stability.
3.2 Model Variations
- 600: -50~600°C temperature range.
- 600Pro: -50~600°C temperature range, features a color screen.
- 800A: -50~800°C temperature range (no temperature probe).
- 800B: -50~800°C temperature range, includes a K-Type temperature probe.
- 800C: -50~800°C temperature range, includes a K-Type temperature probe, and measures environmental temperature and humidity.
4. Setup
4.1 Battery Installation
- Locate the battery compartment on the handle of the thermometer.
- Open the battery compartment cover.
- Insert two 1.5V AAA batteries, ensuring correct polarity.
- Close the battery compartment cover securely.
Image: Diagram showing how to open the battery compartment and insert two 1.5V AAA batteries.
4.2 Initial Power-On
Press the trigger to power on the device. The color HD display will light up, showing the current readings.
Image: The thermometer's color HD display, showing various readings and icons.
5. Operating Instructions
5.1 Basic Temperature Measurement
- Point the thermometer's laser at the target object.
- Press and hold the trigger. The laser will activate, and the temperature reading will appear on the display.
- Release the trigger to hold the measurement.
Image: Hand holding the thermometer, measuring the temperature of roasted beef, illustrating non-contact safety measurement.
5.2 Operation Mode Adjustment
The device features a 'MODE' button and up/down arrow buttons for various adjustments:
- Toggle Ambient/Surface Temperature: Click the 'MODE' button once.
- Switch Temperature Probe Function: Press the 'MODE' button twice (for models 800B, 800C).
- Adjust Emissivity: Press the 'MODE' button three times. Use the up/down arrows to change the value.
- Toggle Celsius/Fahrenheit: Press the 'MODE' button four times.
- Cancel/Display Laser Positioning: In standby mode, press and hold the 'MODE' key for 2 seconds to cancel the laser positioning point. Press and hold again for 2 seconds to display it.
Image: Visual guide for button presses to adjust operation modes, including ambient/surface temperature, temperature probe, emissivity, and C/F unit switching.
5.3 Unit Switching (°C/°F)
You can switch between Celsius and Fahrenheit units with a simple button press as described above.
Image: Comparison of the display showing temperature in Celsius and Fahrenheit.
5.4 Emissivity Adjustment
The emissivity (ε) setting is crucial for accurate non-contact temperature measurement. Different materials emit infrared energy differently. The default emissivity is 0.95, suitable for many common surfaces. For more precise readings, adjust the emissivity according to the material being measured. Use the 'MODE' button (three presses) and arrow keys to adjust the value from 0.1 to 1.0.
Image: Display showing emissivity setting and a table comparing emissivity values for various substances (e.g., Aluminum 0.30, Asbestos 0.95, Brick 0.90, Copper 0.95, Iron 0.70, Paint 0.93, Water 0.93, Wood 0.94).
5.5 MAX (Maximum) Measurement
The thermometer can display the maximum temperature detected during a continuous measurement. The default measurement value at startup is the maximum value, and continuous measurement can lock the higher temperature point.
Image: The thermometer's display showing a 'MAX' reading, indicating the maximum temperature recorded.
5.6 K-Type Temperature Probe (Models 800B, 800C)
For direct contact temperature measurement, connect the K-Type temperature probe to the designated port. The measurement range for the K-Type probe is -10°C~500°C (14°F~932°F) with an accuracy of ±(1.5%+2°C/4°F).
Image: The thermometer with a K-Type temperature probe inserted into a glass of water, demonstrating its use.
5.7 Humidity and Dew Point Measurement (Model 800C)
The 800C model can measure environmental temperature, humidity, and calculate the dew point. These readings are displayed on the color screen.
5.8 High/Low Temperature Alarm
The thermometer is equipped with red, green, and yellow LED alarm lights to indicate high or low temperature conditions, providing a quick visual alert.
Image: The thermometer displaying temperature with red/blue background indicating high/low temperature alarm status.
5.9 Measurement Method for Liquids
When measuring the temperature of boiling liquids, oil, or other liquids, do not let the smoke or water vapor contact the temperature sensing area. The measuring angle should be kept at approximately 45° to 60° to ensure accurate readings and prevent interference from vapor.
Image: Diagram showing correct (angled) and incorrect (direct) methods for measuring liquid temperatures to avoid steam interference.
5.10 12-Point Laser Positioning
The advanced 12-point laser system provides precise aiming and positioning, allowing for fast and accurate locking of the measurement range.
Image: The thermometer showing its 12-point laser aiming system on a target surface.
6. Maintenance
6.1 Cleaning
- Use a soft, damp cloth to clean the exterior of the thermometer.
- Do not use abrasive cleaners or solvents.
- Keep the lens clean for accurate readings. Use a soft brush or cotton swab with lens cleaning solution if necessary.
6.2 Storage
Store the thermometer in a dry, cool place, away from direct sunlight and extreme temperatures.
6.3 Battery Replacement
When the low battery symbol appears on the screen, it indicates that the battery is low and needs to be replaced promptly to ensure continuous operation and accuracy. Follow the battery installation steps in Section 4.1.
Image: The thermometer's display showing a low battery warning symbol.
7. Troubleshooting
- Inaccurate Readings: Check the emissivity setting for the material being measured. Ensure the lens is clean. Allow the device to acclimate to the ambient temperature if it has been moved from a significantly different environment.
- No Display/Power: Check battery installation and ensure batteries are not depleted. Replace batteries if necessary.
- Laser Not Working: Ensure the laser positioning is enabled (refer to Section 5.2).
8. Specifications
Image: Detailed product parameter table for models 400, 600, 800A, 800B, and 800C.
| Parameter | 400 | 600 | 800A | 800B | 800C |
|---|---|---|---|---|---|
| Range | -50~400°C | -50~600°C | -50~800°C | -50~800°C | -50~800°C |
| Laser point | 1 | 1 | 13 | 13 | 13 |
| Ambient temperature | — | — | — | — | -10~60°C |
| Ambient humidity | — | — | — | — | 0~100%RH |
| Temperature probe | — | — | — | ✔ | ✔ |
| Dew point mildew | — | — | — | — | ✔ |
| D:S (Distance to Spot Ratio) | 12:1 | ||||
| Emissivity | 0.1~1 adjustable | ||||
| Response spectrum | 8~14 um | ||||
| Laser class | Level 2 | ||||
| Response time | <0.5S | ||||
| Automatic shut-down | 30 seconds | ||||
| Data retention | Have | ||||
| Operating temperature | 0~40°C | ||||
| Storage temperature | -10°C~60°C | ||||
| Battery | 1.5V*2AAA battery | ||||
Image: Diagram illustrating the Object Distance Ratio (D:S) of 12:1, showing how distance affects the measurement spot size.
9. User Tips
- Emissivity for Metals: For accurate metal temperature measurements, especially for processes like bluing, ensure the emissivity coefficient is correctly set. Reference online tables for specific metal emissivity values.
- Fluid Measurement: When measuring fluids like oil, hold the thermometer at a 45-60 degree angle to avoid interference from steam or vapor, which can lead to inaccurate readings.
- Model Identification: If your product packaging or listing shows multiple models (with or without a probe), verify the specific model you received against the product specifications to understand its exact features.
10. Product Demonstration Video
Video: An unboxing and quick demonstration of the Mestek Infrared Thermometer, showing its physical appearance and basic operation.
11. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or contact the seller directly. Keep your purchase receipt as proof of purchase.
