The average lifespan of a temperature uniformity sensor is 18-24 months. In the high-temperature and high-humidity environment of Wuhan, if not properly protected, the lifespan may be shortened to less than 12 months.
1. Lifespan under normal operating conditions
Standard lifespan: 18-24 months Under stable temperature and humidity conditions, without frequent thermal shocks, and with good sealing, armored thermocouple-type temperature uniformity sensors can operate stably for nearly two years.
Influencing factors: Number of thermal cycles (start-stop frequency); Melt pressure fluctuations; Temperature control accuracy requirements (high-precision scenarios accelerate aging).
Engineering verification: Data from Jiangsu Kangfeite shows that under standardized use, the average annual failure rate of sensors is <5%.
2. Lifespan Degradation in High Humidity Environments (Wuhan Special Project)
|
Risk Factors |
Impact on Lifespan |
Control Measures |
|
Misty Oxidation of Connectors |
Insulation resistance decreases, signal drift |
Use IP67 connectors + nano-coating. |
|
Condensation Erosion |
Internal short circuit or corrosion |
Install miniature heating elements, shut down and purge. |
|
Continuous High Humidity During the Rainy Season (>85%RH) |
Lifespan shortened by 30%~50% |
Rotate every 60 days, replace earlier. |
3. Typical Signs of End-of-Lifetime
Signal Abnormalities: Temperature drift >1℃/h or frequent spikes;
Insulation Degradation: Test value <50MΩ (500VDC);
Response Lag: Step response time >150 seconds;
AI Health Weight: Continuously <0.7, and the trend is worsening.
Operational Recommendations: Initiate the replacement process immediately upon the appearance of any sign to avoid sudden failure.
