Thermocouples are widely used in industrial production and accurate temperature control is required. Although relatively new air conditioning unit using in the burner combustion efficiency higher models in their domestic market. Because they are so down to 0 degree of temperature difference in the reading. 1 precision, saves thermocouple no heating or cooling energy to activate this big error. How thermocouple work most of the thermocouple are in the same way manufacturing and business the same principle. They use different metals, when the heating or cooling produces a small voltage or current. Voltage is called a cautious signals. The voltage is so small v ohmmeter is does not have read value. Voltage 001 v or v miller. Electric current produced by the thermocouple them in miller amp or 0. 001 amps to register the same. Some models in the voltage range of thermocouple voltage is fed from 0 to 5 v voltage range and high feedback voltage, but the cautious signal changes, in the range of 001 v. There is a range of generator thermocouple is usually, in 4 to 20 mir signal amplifier. Every 4 amplifier miller is low and the signal of 20 amp miller is on the high side. You may also be beneficial to the written 4 ma to 20 ma. Thermocouple is how to make a thermocouple compensating conductor under construction in very thin 0. 010 inches in diameter. Then, they are both ends welded to form a circuit or conduction path. These small wire feeds in a metal tube and outer tube electric insulation. They are immersed in hot liquid or paste, in which to place the environment can be read, body temperature and a small voltage or current from the differences of the two lines. Signal is how to explain to you? Or from the thermocouple voltage signal, and then feedback to the interpretation of the signal controller. In general, amplifier, so that it can be used to control equipment, or is the signal of heating or cooling. What makes the thermocouple wiring, many companies in the use of thermocouple compensating conductor proprietary material. Because of this, if you attempt to use a in addition to see the materials used, they will be destroyed. Also can undertake material toxicity or your skin and health. It is never suggest a thermocouple.