Several issues needing attention when using infrared thermometers
1. Infrared thermometers should use hinged copper wires (with a cross-sectional area of approximately 50mm2) to form an electrical bypass to protect them from the hazards caused by welding currents or lightning strikes. During the use of a thermometer, it is necessary to avoid strong thermal radiation, especially on one side.
2. In terms of electrical connections (such as signal cables for thermometers, they should not be arranged in parallel with high-voltage power lines or control lines (for example, do not place the thermometer signal line, high-voltage power line, and control line in the same pipeline). If they must be placed in parallel, the distance between them should be kept at least 50cm, and the signal lines should be covered with metal tubes.
3. Try to use structural components with automatic positioning (reset) function, such as ball bearings, joint bearings, positioning fasteners, etc.
They can prevent certain lateral forces from acting on the thermometer. It should be noted that some lateral forces are not caused by mechanical installation, such as lateral forces caused by thermal expansion, lateral forces caused by wind, and lateral forces caused by vibration of agitators on certain container scales, which are not caused by mechanical installation. Some accessories on certain scales must be connected to the scale body (such as the feeding pipeline of container scales). We should make them as soft as possible in the direction of loading the main shaft of the thermometer to prevent them from "eating" the true load of the thermometer and causing errors.
4. Handle with care, especially for small capacity thermometers made of alloy aluminum elastomers. Any impact or drop may cause significant damage to their metrological performance. For large capacity infrared thermometers, they generally have a large weight, so it is required to use appropriate lifting equipment (such as chain hoists, electric hoists, etc.) as much as possible during transportation and installation. The installation surface of the base for installing the thermometer should be flat, clean, and free of any oil film, adhesive film, etc. The installation base itself should have sufficient strength and rigidity, generally requiring higher strength and rigidity than the thermometer itself.
