K type thermocouple response time measurement

Measurement of K type thermocouple thermal response time is actually more complex, different test conditions will produce different measurement result, this is due to the effect of heat transfer rate of surrounding medium, heat transfer rate is high, the thermal response time is short. In order to make the K type thermocouple comparable thermal response time, national standards: thermal response time should be in the special flow test device. The device of flow speed should be zero. 4±0. In 5-5 m/s, the initial temperature Temperature 45 ℃, within the scope of the step value of 40 - 50℃。 In the process of test, the temperature of the water transformation should be no greater than temperature step value plus or minus 1%. The subjects of K type thermocouple placement depth of 150 mm in depth or design. Because the K type thermocouple near room temperature thermoelectric power is small, thermal response time is not easy to measure, so can use the same specification of national standard of the K type thermocouple electrode component to replace its own hot electrode components, and then tested. Test should take note of thermocouple output transform to the equivalent of 50% of the time step transformation temperature T0. 5, write down when necessary transform T0 10% thermal response time. 1 and transform T0 90% thermal response time. 9. Down by the thermal response time, should be the same test at least three times the average of the test results, each measurement results for the average deviation should be within + / - 10%. In addition, the formation temperature step transform tested should not be more than the time needed for thermocouple T0. One over ten of the five. Ring should be time to write down the instrument or instrument shall not be more than the participants of the thermocouple T0. One over ten of the five. Dear customer: hello, our company is a strong technical force of the development of high quality, for the majority of users with high-quality products and complete solutions and the best technical services company. The main products are platinum rhodium thermocouple S type thermocouple sheathed thermocouples tungsten-rhenium thermocouples, etc. This enterprise uphold sincerity, with the purpose of the implementation of quality and with enterprising societe generale, with a firmer step climb the new peak unceasingly, contribute to national automation industry, welcome new and old customers to rest assured the choose and buy the desired products. We will serve you wholeheartedly!