Specific parameters and requirements

Basic functional requirements

1、Power Supply: 220V, 50Hz, with a power less than 2000W.

2、Temperature range: Room temperature + 5℃ to 100℃

3、Temperature control accuracy: ±0.2%；

4、The temperature uniformity is ≤ 0.2℃.

5、Measurement range of the resistance value: 0 - 20KΩ, with an accuracy of 1Ω.

6、The tooling is suitable for installing thermistors of various series. The resistors under test are connected to the equipment through terminal blocks. Each port has a 6-millimeter through-hole inserted into the silicone oil.

7、Cooling method: Compressed air cooling (optional)

8、Medium: High-temperature silicone oil (0 - 200℃). The test machine includes the rated amount of silicone oil for use. Additionally, an extra share of silicone oil with the same specifications and quantity should be prepared as a backup. The silicone oil is an insulating medium, which is suitable for accurately testing the resistance value. 。

9、Heating and Temperature Control Method: Heat is generated by the heating tube, and the motor stirring device stirs to make the temperature of the entire temperature tank uniform. The high-precision temperature controller senses the temperature through the four-wire PT100, and the PID output controls the heating power to achieve temperature control. The minimum rate of temperature rise and fall is less than 0.5℃/min.

10、Specifications of the medium filled in the box: The volume is approximately 10 liters, and the opening diameter is not larger than φ160.

11、Working environment: 5-45℃ / 25%-85%RH