How can you know producing bimetal temperature timing accurate temperature?

, often asked why I bought two thermometer, at the same time put in a bucket, but according to temperature was different, not your thermometer? Today let's talk about this problem. First of all, this statement is certainly not right, our production bimetallic temperature time, mainly adopts thermal control equipment is the thermostat. It is widely used in petroleum, chemical, electronic instrument, physics, chemistry, biological engineering, medicine and health care, life science, light food, physical testing and chemical analysis and other research departments, institutions of higher learning, enterprises, qc and production department work for the user to provide a hot cold is controlled, the temperature even constant field source, the test samples or products for constant temperature test or tests. In this way we can ensure each thermometer and standard error of the mercury glass rod in a reasonable range. The bucket is unable to achieve this effect. When using constant temperature cold trough should pay attention to the points: 1. Join the liquid medium, medium level should be lower than work bedplate around 30 mm, otherwise will damage the heater electricity work. 2. Use 220 v ac power constant temperature cold trough, before use, please confirm the power socket current rating not less than 10. A, and have reliable safety grounding device. 3. Constant temperature cold trough should be placed in dry ventilated place, no obstacles in the instrument around 300 mm. 4. When the constant temperature trough working temperature is higher or lower, should pay attention to the hand not into the slot, in case of burn, and frostbite. After use, all switch is placed in the closed position, cut off power supply.