On the surface of the thermometer should be paid attention to in the school on time

Now the surface of the using range of the thermometer is broad, mainly of industrial machinery, chemical and other industries, the need for accurate measurement of pipe surface temperature of the production, with the widely application of the surface thermometer, how to carry on the accurate calibration become a prominent problem. Then introduce the surface thermometer for everyone matters that should be paid attention to in the school on time. 1, when the thermometer calibration, indoor air is best not to have clear air convection, if running air conditioning, also to be as much as possible in the region of the calibration and damper isolation, avoid air convection effects on surface WenYuan. 2, as far as possible the first measured surface temperature thermometer part on the edge of the preheating, after waiting for temperature basically stable thermal part will be moved to the surface again WenYuan center is measured. So can reduce the damage to the surface WenYuan using regional temperature field, improve the reliability of the calibration. 3, when the temperature on the surface of the gauge, also note whether the temperature of the thermometer part and the surface has the correct contact, improve the reliability of calibration. 4, different surface thermometer at the time of calibration, also need different isothermal time. Calibration should be enough isothermal time, make the thermometer temperature section and surface WenYuan reach thermal equilibrium state.