Five Main Factors Affecting the Measurement Accuracy of Infrared Thermometers
1, High temperature environment
This environment is prone to melting the coating material of infrared thermometers, cracking of solder joints, and changes in the stress layout inside the elastomer. In this environment, a high-temperature resistant infrared thermometer should be selected, and insulation, water cooling or air cooling devices should also be added.
2, Corrupt environment
Infrared thermometers operating in corrosive environments can easily cause damage to the casing, resulting in damage to the internal elastic body and even short circuits. Therefore, it is recommended to choose a device with good corrosion resistance and a sealed environment
A high-performance infrared thermometer. It is common to choose products with stainless steel casings or appearances that have undergone anti-corrosion treatment and punishment.
3, Strong electromagnetic field disturbance
A strong electromagnetic field environment can cause distortion and large fluctuations in the output signal of an infrared thermometer. It should be shielded and punished until it has excellent resistance to electromagnetic interference.
4, Dust and humid environment
A highly sealed infrared thermometer should be used in this environment, otherwise it may cause a short circuit in the infrared thermometer. You can refer to the IP protection grade of the infrared thermometer and select the corresponding product.
Moreover, the sealing methods of infrared thermometers vary greatly, and there must be significant differences in their sealing properties. Common sealing methods effectively fill or apply sealant; Rubber pad machine fastening seal; Welding and vacuum sealing with nitrogen filling. Among these sealing methods, the welding sealing performance is inferior, followed by the rubber pad machine fastening sealing, and the filling and coating of sealant is inferior. For places that usually do not require strict sealing, infrared thermometers with adhesive sealing can be chosen. However, for infrared thermometers that are used in humid and dusty environments, the sealing method they accept should be hot sealed or welded sealed, or vacuum filled with nitrogen sealed products.
5, Flammable and explosive environment
If the selection of infrared thermometers for flammable and explosive environments is not appropriate, it will cause permanent damage, and the output of the prohibition signal to the control system will lead to misoperation, and even pose a threat to equipment deployment and personal safety for other things. Therefore, it is necessary to carefully choose an infrared thermometer that operates in such an environment and must utilize explosion-proof performance. It not only needs to have airtightness, but also needs to consider explosion-proof strength. Its cable lead must also meet such requirements.
