For the selection of NTC temperature sensors used in refrigerators, we need to consider a number of factors to ensure that the selected sensors can accurately and stably monitor the temperature inside the refrigerator, thereby optimizing the refrigeration effect, extending the shelf life of food and reducing energy consumption.
1. Temperature range and accuracy
The operating temperature range of refrigerators is usually between -18°C and 10°C, and some high-end refrigerators may have a wider temperature range, such as the freezer can reach 0°C to 7°C, and the freezer can reach below -24°C. Therefore, when choosing an NTC temperature sensor, the primary consideration is whether its operating temperature range matches the actual needs of the refrigerator. Ensure that the sensor can maintain accurate and stable performance within the operating temperature range of the refrigerator.
Precision is another crucial factor. The temperature control inside the refrigerator is directly related to the storage quality and energy efficiency of the food. High-precision sensors can more accurately reflect the temperature changes inside the refrigerator, allowing the control system to make more timely adjustments to maintain a constant temperature. In general, the accuracy of NTC temperature sensors ranges from 0.05°C to 1.00°C (Lark can achieve 0.01 °C), and for refrigerator applications, it is wise to choose a sensor with higher accuracy.
