Installation of temperature measuring thermocouples

Any of them is fine, as long as the insertion depth is sufficient.

Depth of insertion: When installing a thermocouple, it should be immersed in the medium to be measured, with a certain depth of immersion. Generally, when using metal protective pipes, the insertion depth should be 15 to 20 times their diameter; when using non-metallic protective pipes, the insertion depth should be 10 to 15 times their diameter. When installing a thermocouple, it is essential to carefully select the measurement point. This point must be located where it can accurately reflect the actual temperature of the object being measured; at the same time, considerations should also be given to how easy it is to install and maintain the thermocouple. The location where the thermocouple is installed should also offer basic safety, ensuring that the thermocouple can be used normally over a long period of time. When thermocouples are installed on pipes, attention must be paid to their installation orientation. They should be installed on vertical or horizontal pipes whenever possible, with their orientation being opposite to the direction of the medium’s flow within the pipe. Finally, a protective sleeve is fitted to the thermocouple during installation, making it easier to maintain and replace. When thermocouples are used for measurements inside pipes, their measuring elements must be located on the pipe’s centerline; additionally, the length of the thermocouple inserted into the pipe must meet the basic requirements for use. When using thermocouples inside pipes, one must pay attention to the wear caused by the flowing medium on the thermocouples. If the flowing medium contains a large number of solid particles or if the flow velocity is high, necessary protective measures should be taken for the thermocouples. When measuring with thermocouples whose cold ends are exposed to the same temperature environment, compensating wires of the same type must be used to ensure the accuracy of the measurement results. When measuring in high-temperature environments, it is advisable to use high-temperature resistant cables and compensating wires to ensure the reliability of the thermocouple. When installing the thermocouple, care must also be taken to ensure that the display meter is installed correctly and aesthetically. When installing a thermocouple, it is essential to carefully select the measurement point. This point must be located where it can accurately reflect the actual temperature of the object being measured; at the same time, considerations should also be given to how easy it is to install and maintain the thermocouple. The location where the thermocouple is installed should also offer basic safety, ensuring that the thermocouple can be used normally over a long period of time. When thermocouples are installed on pipes, attention must be paid to their installation orientation. They should be installed on vertical or horizontal pipes whenever possible, with their orientation being opposite to the direction of the medium’s flow within the pipe. Finally, a protective sleeve is fitted to the thermocouple during installation, making it easier to maintain and replace. When thermocouples are used for measurements inside pipes, their measuring elements must be located on the pipe’s centerline; additionally, the length of the thermocouple inserted into the pipe must meet the basic requirements for use. When using thermocouples inside pipes, one must pay attention to the wear caused by the flowing medium on the thermocouples. If the flowing medium contains a large number of solid particles or if the flow velocity is high, necessary protective measures should be taken for the thermocouples. When measuring with thermocouples whose cold ends are exposed to the same temperature environment, compensating wires of the same type must be used to ensure the accuracy of the measurement results. When measuring in high-temperature environments, it is advisable to use high-temperature resistant cables and compensating wires to ensure the reliability of the thermocouple. When installing the thermocouple, care must also be taken to ensure that the display meter is installed correctly and aesthetically.