How to calibrate an infrared thermometer?
How to calibrate an infrared thermometer? What are the methods for calibrating infrared thermometers? Simply put, the calibration of an infrared thermometer means that if it is not accurate, or if it is inaccurate, how to make it more accurate. The calibration and measurement department of infrared thermometers presents two types of inspection reports and calibration certificates:
1. Inspection report: It refers to the temperature point specified by the infrared thermometer for testing, and provides criteria according to product standards, whether it is qualified or unqualified.
2. Calibration certificate: It is to test the specified temperature point of the infrared thermometer and provide a comparison value between the standard temperature and the actual reading of your product.
For users, a calibration certificate is better. But neither of these certificates can make products with deviations more accurate. To achieve accuracy, especially for infrared thermometers, only manufacturers can achieve it, which is professionally referred to as "calibration".
Additionally, if it is an online infrared thermometer, it can be verified through other methods.
Calibration of infrared thermometers is a tedious procedure that requires professional personnel to calibrate and must be carried out by the metrology department or product manufacturer
Calibration of infrared thermometer
The infrared thermometer must be calibrated to accurately display the temperature of the measured target. If the thermometer used exceeds the temperature measurement limit during use
In order to measure temperature, align the instrument with the object to be measured, press the trigger to read the temperature data on the instrument's LCD, ensuring that the ratio of distance to spot size and field of view are arranged properly. There are several important things to remember when using an infrared thermometer:
Only measuring surface temperature, infrared thermometer cannot measure internal temperature. Temperature measurement cannot be carried out through glass as it has special reflection and transmission characteristics, and precise infrared temperature reading is not allowed
Surface temperature measurement (stainless steel, aluminum, etc.). To locate a hotspot, aim the instrument at the target and then scan up and down on the target until the hotspot is identified. Pay attention to environmental conditions: steam, dust, smoke, etc. It obstructs the optical system of the instrument and affects accurate temperature measurement. The ambient temperature, if the thermometer is suddenly exposed to an ambient temperature difference of 20 degrees or higher, allows the instrument to adjust to the new ambient temperature within 20 minutes.
