What is the use of the thermocouple considerations _ instrument3

In use process should be based on thermocouple temperature measurement range and measurement of object, choosing the proper type, specification and maintenance of thermocouple tube. Thermocouple is higher with temperature and working pressure shall not go beyond the numerical rating of the thermocouple. If the thermocouple to be used in the corrosive medium, maintenance should be made of stainless steel pipe. Most of the thermocouple sensor is about 120 mm in length, select the thermocouple inserted depth, should consider to the thermocouple sensor can only measurement of the homogeneous degree of the measured medium full scope. Thermocouple wiring, junction box opened the first, and then wiring. Connection way of general there are two wire and three-wire system two kinds. Three wire system has the advantage of cohesion, can prevent the bimetallic thermometer provoked by connecting wire resistance value of the instrument error value for show. Thermocouple and display instrument of connecting wires should be insulated copper wire, shall not use the thermocouple compensating lead wires. Shows copper wire resistance should be according to the rules of data matching instrument technique conditions, the average of 2 a 50, dc balanced bridge wire resistance value can be used to adjust. Can't take a thermocouple with two instrument used in parallel, as long as the double branch thermocouple with appeared two instrument can only be used to apply. Thermocouple and its attachments without using, the required storage in tungsten-rhenium thermocouples are not affected by the middle of the vibration and impact. Appropriate storage location condition is: 10 to ambient temperature 35 gc; Relative humidity is not more than 80%; Should not contain may form in the air around the thermocouple parts corrosion substance. Thermocouple is the use of the material when the temperature changes, the resistance also along with the change of characteristics to measure temperature. When resistance changes, the work shows the temperature resistance of the meter. Thermocouple is a kind of temperature sensor, it is smaller than the diameter of a prefabricated thermocouple, flexible, good vibration resistance, suitable for installation in the case of prefabricated thermocouple can't install, WZPK thermocouple series adopts imported thermocouple temperature measuring element, therefore, is accurate, sensitive, quick thermal response time, stable quality, long service life, etc. Thermocouple protective mining have stainless steel, full of high-density oxide material inside insulation, therefore, thermocouple strong pollution resistance and mechanical strength, suitable for installation in harsh environment. Resistance characteristics of the external protecting tube of stainless steel, with high density in metallurgical grade magnesia oxide material insulation, so it has a strong pollution resistance and excellent mechanical strength, suitable for installation in harsh environment. High measuring accuracy; Import or production film resistance element, performance stable and reliable; Thermocouple are usually made of platinum thermocouple temperature sensing element, install fixtures and wiring devices, such as main parts, such as thermal response time, reduce the dynamic error; Small diameter, the length of the restricted.