IR320 - Thermometer Extech - Free user manual and instructions
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| Product Type | Infrared Thermometer |
| Brand | Extech |
| Model | IR320 |
| Temperature Range | -50°C to 550°C (-58°F to 1022°F) |
| Accuracy (IR) | ±1.5% of reading or ±1.5°C (whichever is greater) |
| Distance-to-Spot Ratio | 30:1 |
| Emissivity | Adjustable from 0.10 to 1.00 |
| Response Time | < 250 ms |
| Laser Aiming | Class II, <1 mW, 630-670 nm wavelength |
| Display | Backlit LCD with data hold |
| Measurement Features | Max, Min, Avg, Difference |
| K-Thermocouple Range | -50°C to 1370°C (-58°F to 2498°F) |
| Power Supply | 9V battery (included) |
| Battery Life | Approximately 20 hours |
| Auto Power Off | After 15 seconds |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Dimensions | 160 x 82 x 38 mm (6.3 x 3.2 x 1.5 in) |
| Weight | 220 g (7.8 oz) |
| Maintenance | Clean the lens with a soft cloth or cotton swab; replace the battery when the low battery indicator appears |
| Safety | Meets CE standards; laser radiation caution |
| Reparability | No user-serviceable parts; contact Extech service center for calibration or repairs |
Frequently Asked Questions - IR320 Extech
What is the optimal distance for measuring with the IR320?
The IR320 has a 30:1 distance-to-spot ratio. This means that at 30 inches (75 cm) from the target, the measurement spot is 1 inch (2.5 cm) in diameter. For accurate readings, ensure the target fills the spot.
Can the Extech IR320 measure human body temperature?
The IR320 is designed for industrial applications, not medical use. It can measure temperatures in the range of -50°C to 550°C, but it is not certified for clinical body temperature measurements.
How do I adjust the emissivity?
Press the MODE button to enter emissivity adjustment mode, then use the UP/DOWN buttons to set the value from 0.10 to 1.00. The emissivity is displayed on the LCD.
What is emissivity and why is it important?
Emissivity is a measure of a material's ability to emit infrared energy. The default emissivity is set to 0.95, which is suitable for most organic surfaces. For shiny metals, lower the emissivity to between 0.1 and 0.3 to avoid inaccurate low readings.
How do I switch between Celsius and Fahrenheit?
Press and hold the MODE button for about 3 seconds until the unit indicator changes from °C to °F or vice versa. The selected unit will be saved in memory.
Does the IR320 have a laser pointer?
Yes, it features a Class II laser to help you aim at the target. The laser is emitted when you press and hold the trigger button. Avoid aiming the laser at eyes.
How do I use the K-type thermocouple?
Insert the K-type bead wire thermocouple into the K-connector at the base of the handle. When connected, the display will show the thermocouple reading. You can toggle between IR and probe readings using the MODE button.
What should I do if the reading seems erratic?
Make sure the target is larger than the spot size, and that the lens is clean. Also, allow the thermometer to stabilize for a few seconds after moving from a cold to hot environment. If using AC power, avoid magnetic fields.
How do I clean the lens?
Gently wipe the lens with a soft, lint-free cloth or a cotton swab dampened with water or isopropyl alcohol. Allow the lens to dry completely before taking measurements. Do not use abrasive solvents.
What is the accuracy of the IR320?
For IR measurements, accuracy is ±1.5% of the reading or ±1.5°C (±3.6°F), whichever is greater, for temperatures above 0°C. For temperatures below 0°C, add 1°C to the specified accuracy.
User questions about IR320 Extech
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USER MANUAL IR320 Extech
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Product information
Brand : Extech
Model : IR320
Category : Thermometer