What are the precautions for use of surface thermometer?

In our actual application, we often need to measure the temperature of the surface, such as measurement on the surface of the pipe surface temperature, mould temperature, etc. , at that time, we usually use surface thermometer, also called the magnet thermometer, pipeline thermometer, it has the advantage of the scene display temperature, intuitive and convenient; Safe and reliable, long life, fast reading. General is widely used in industry, petroleum, chemical industry, power plants, shipbuilding and other fields, the installation environment is generally by magnet adsorption in the surface of object to be tested, so can't object to be tested for the stainless steel material. Today we will say what are the precautions for the use of surface thermometer? According to the use of the surface of the environment and the structure of the thermometer, we believe that the use of surface thermometer need to pay attention to the following two questions: 1. Thermometer on the surface of the magnet surface and the surface of the object to be tested must be wiped clean, if you have any impurity in the middle, will result in loss of temperature, so as to make the measured temperature is not accurate. 2. Surface thermometer is by magnet conductivity, general from the placement to the surface of object to be tested to the temperature display stable reaction time is about 15 minutes, that is to say, must be 15 minutes reading is accurate. In addition, the use of surface thermometer also regularly clean surface and calibration, so you can count on the accuracy of temperature measurement.