How to improve the lifetime of thermocouple

1. According to applied temperature range and environment, you need to choose suitable type of thermocouples to make sure it can withstand the expected temperature and environment requirements. For example, Type K thermocouple is not suitable for a long term at temperatures above 1000℃ and not suitable in vacuum, sulfur-containing, carbon-containing atmosphere, and alternate redox atmosphere.

2. You need to make sure the conjunction stable to avoid any pulling, bending and crushing. Install protection tubes or sheath to prevent corrosion and mechanical damage. In most occasion, the lifetime of sheath decides the life of thermocouple. At high temperature, the alloys or metals that make up thermocouple will be deteriorated, while the impurity of alloys will have chemical reaction with gases in the environment. The deterioration of thermocouple is a quantitative progress, which will vary with the type , diameter, using temperature, using atmosphere and time.

3. You need regularly check thermocouple device to make sure it’s measuring accuracy and can help us find potential problems to fix timely.

4. You should record and track the using situation including installation date, calibration date and maintenance records, which can following the use of thermocouple and find potential problems.

We always work with our partners and customers on how to improve the lifetime of thermocouple and accumulate many experience. Please contact us if you have any questions , our professional team of engineers will be glad to solve your problems.