Bimetallic thermometer error sources have?

Bimetallic thermometer is widely used in petroleum, chemical industry, machinery, ships, electricity, textile, printing and dyeing and other industrial and scientific research departments and other fields. So to the accuracy requirement of the bimetallic thermometer. Thermometer as a professional manufacturer, combined with our years of experience in the thermometer, summed up the result in the error of the bimetallic thermometer five aspects: 1. High precision of the thermometer itself level, level of relative error is much smaller. 2. Heat pipe is sheath maerial of insertion depth, the original depth must be over the temperature of the thermometer ( More than two-thirds of heat tube length) , usually will have a sheath maerial pits, liquid to flow over the pits. 3. Thermal sheath maerial of material, different material heat of reaction time and cooling degree will lead to different precision error is different. 4. Whether the thermometer with a sheath, sheath thickness and material of different can also lead to the reading error of the thermometer and reaction time. 5. Using the environment also can affect.