The integration of thermocouple temperature sensor protection tube should pay attention to the problem

Integrated temperature thermocouple sensors often appear some problems in the course of using, especially the protection tube, thermocouple temperature sensor temperature thermocouple protection tube sensor is used to protect the inside of the resistance, but the thermocouple temperature sensor case is likely to cause negative effect.

when installation, integration of thermocouple temperature sensor error of the insulation deterioration and introduced such as thermocouple insulation, protection tube and wire plate too much dirt or salt slag between the thermocouple interelectrode and wall insulation fault, at high temperatures is more serious, which not only causes the thermoelectric potential loss but also can introduce interference, the resulting error sometimes can reach. Due to thermal inertia of thermocouple gauges behind the change of the measured temperature, indicating value of this influence is particularly acute in rapid measurement, so should be used as thermal electrode is small, small thermocouple protection tube diameter.

when temperature measuring environmental permits, even protecting tube can be taken. Integrated temperature thermocouple sensors in use, usually USES the material with good thermal conductivity, thin, small diameter of the tube wall to protect casing, in the precision of temperature measurement, using unprotected casing bare wire thermocouple, but thermocouple is easy to damage, should timely correction and replacement.

the integration of thermocouple temperature sensor is currently in use is more of a thermocouple temperature sensor, the thermocouple protection tube sensors are often, so we must pay attention to when using the installation of the protection tube and choices, or it will lead to inaccurate measurement and even damage the thermocouple temperature sensor.

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure thermocouple sensor, digital temperature thermocouple sensor