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Home / News / What Kind Of Environmental Experiment Should The Temperature Switch Do?

What Kind Of Environmental Experiment Should The Temperature Switch Do?

  • July 15, 2020

Temperature switches must undergo a series of functional tests before production, such as environmental tests. What are the contents of environmental tests? Resistance to low temperature, high temperature, thermal shock and moisture resistance must be done.

 

1. Resistance to low temperature, high temperature, cold and heat shock: Place the thermostat sample in a thermostat at -20°C, keep it for 1h after the temperature stabilizes, take it out and place it for 2h; then place the sample in a thermostat at 150°C After the temperature is stable, keep it for 1h, take it out and place it for 2h; finally, place the sample in a thermostat at -20±3℃ for 0.5h, take out the sample and place it in a room temperature environment for 2~3min, and then take it out at 150±3℃ In the incubator for 0.5h, take it out and place it in a room temperature environment for 2~3min as a cycle, and continue for 5 cycles. During the entire test, no suspected dew or water droplets should appear on the surface of the tested sample.

 

Performance:

The change of the operating temperature to the initial value of the test is ±3°C below 100°C, and ±3% above 100°C;

Insulation resistance above 100MΩ (determined with DC500V insulation resistance meter and rated voltage DC500V);

A one-minute withstand voltage test with 1500V 50Hz AC voltage close to sine wave between charged metal parts and non-charged metal parts without breakdown and flashover;

 

2. Humidity resistance: Put the temperature controller sample in a constant temperature box with a temperature of 40±2℃ and relative humidity for 48 hours according to the provisions of GB2423.3 to reach the performance index.

 

Performance:

The change of the operating temperature to the initial value of the test is ±3°C below 100°C, and ±3% above 100°C;

Insulation resistance above 100MΩ (determined with DC500V insulation resistance meter and rated voltage DC500V);

A one-minute withstand voltage test with 1500V 50Hz AC voltage close to sine wave between charged metal parts and non-charged metal parts without breakdown and flashover;

The temperature switch will be tested before mass production. Only when the performance index is reached can it be produced. Oceanpower temperature control strictly abides by each step of the experimental process, controls the experimental results, and the product is safe and reliable.

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