Using a glass rod thermometer matters needing attention

Glass rod thermometer is often visible in People's Daily life, today we will explain the use of glass rod thermometer considerations. 1. Using a glass rod temperature time, first to see its range ( Measuring range), , and then see the smallest degree of value, it is every little value. To select the appropriate thermometer to measure the temperature of the object to be tested. 2. When measuring the vacuole of the thermometer should contact with fully object to be tested, and the glass bulb without touching the side or bottom of the object to be tested: reading, don't leave the thermometer, the object to be tested and the line of sight of the eyes should h flat with a thermometer. 3. Glass rod thermometer should be should be regularly check ( More than standard liquid temperature comparison method may be used for calibration or more advanced precision thermometer) 4. Not allowed to use the temperature more than the thermometer of the measured value of the largest scale value. 5. Thermometer have thermal inertia, after should reach a steady state in thermometer readings. Reading should be in the highest temperature on convex curved surface tangent to read, looking directly at them. 6. Using cool thin rod temperature time avoid violent vibration and should not make dramatic changes in temperature.