Liquid liquid thermometer is broken?

Liquid thermometer broken fluid is the main reason is: one is the air in the liquid, and second, the transportation and storage are caused by vibration. Therefore, before the test and use must check the thermometer, and to found a broken fluid should be timely repair, otherwise, cannot use. Repair method is: 1, the gravity method: if I found the middle bubble or capillary with broken line of the liquid column, also can use gravity method to repair, need to desktop mat a elastic layer of soft material, holding a thermometer under the bubble, vertical elastics slight shock or vibration, makes the bolt connecting with liquid under the bubble. Sometimes also can use the combination of gravity and cooling methods, bolt first liquid thermometer cools, take out after using gravity method, repeated several times, also can to exclude bubbles, causes the liquid. 2, cooling method: put thermometer heat soak in ice water or dry ice, make the liquid cylinder shrink to zero position and the bubble is upper, this can be air bubbles into the liquid above the curved liquid surface. To bubble out clean, usable and heating, cooling method combined with repeated several times to repair. 3, heating method: when found in the capillary or intermediate bubble in liquid beads, can adopt the method of heating. Soak thermometer temperature on heat source of heat, make the next bubble liquid and bolt connection, and then cooling at room temperature, such as connection, can be repeated several times, liquid column bolt fix, is often encountered in the actual work, it is important to note that when a breakout of liquid drops in the security bubble at the top of the position, be difficult to repair, a bit not note will make the next bubble burst, therefore, be extremely cautious when repair.