Correct Use

• Influence of Dust
• Influence of Water Vapor
• Measurement from Angled Direction
• Temperature Measurement of Rotating Objects
• Flatness of the Object
• Influence of the Object Color
• Measurement in the Dark
• Laser for Alignment
• Measurement of Temperature of Human Body

When you can see the object clearly, measurement of temperature will be done correctly though, if you can't see the object because of dust in the air or if the lens of the non-contact thermometer is contaminated, measurement of temperature won't be correct. In case the lens is contaminated, please clean the lens. For mounted type, please utilize option air purging pipe to keep the lens clean.

OPTEX-FA's non-contact thermometers is utilizing infrared atmospheric window range though, if you can't see the object because of too much water vapor, measurement result won't be correct.

Even if the non-contact thermometer is angled, as long as the object is big enough to cover its FOV, it will be able to measure its temperature correctly. Although, if the angle exceeds 45 degree, it won't be able to measure the temperature correctly.

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Non-contact thermometer measure average temperature of the object in the FOV area so flatness is not important for the measurement.

Non-contact thermometer won't get any influence by color of objects. Although, it will get influence when the surface of the object is glossy (metallic paint for example).

Non-contact thermometer receive infrared ray so measurement in the dark is not a problem.

OPTEX-FA's non-contact thermometers use Class 2 laser (JIS C6802/IEC 60825-1/FDA laser safety standards) for alignment so don't stare into laser beam or point laser beam at eyes since it may damage the eyesight.

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Don't use OPTEX-FA's non-contact thermometers for medical purpose nor measuring human body temperature.