Section 4 FAQ Q Can the TC004 Lite detect objects underwater, through glass or a wall? A No. Infrared detectors mainly detects 8 to 14 μm long-wave infrared areas, and can only be used to measure surface temperature. Q Why is there a lower temperature reading when the device gets far from the object and a higher reading when the device gets closer to the object? A Infrared radiation attenuates when passing through the atmosphere. The longer the distance, the greater the attenuation. Thus, the accuracy of temperature measurement at a distance will decrease. To ensure accuracy of measurement, go to Setting > Measure Parameter > Distance , and input the actual distance (max:
5 meters) to get the corrected temperature. Q Why is the measured temperature not very precise? A The temperature resolution of TC004 Lite is ±2%. And the TC004 Lite provides a normal temperature range of -4 to 302°F (-20 to 150°C), and a high temperature range of 212 to 1,022°F (100 to 550°C). Please select the corresponding range in the Settings before measuring. Q A What external factors will affect the infrared temperature measurement? The following factors will have an impact on the measurement results: a) Emissivity of the object surface. b) Ambient temperature:
The object will reflect the infrared rays emitted by surrounding objects, which affects the temperature measurement of the object itself. c) Atmospheric temperature: The atmosphere itself also emits infrared rays. d) Atmospheric transmittance: the infrared rays emitted by the object are attenuated in the atmosphere. e) Distance: the longer the distance, the greater the attenuation of the infrared rays emitted by the object in the atmosphere. EN I 11