PCBgogo

Introduction

In the fields of electronics manufacturing, laboratory storage, and precision instrument maintenance, desiccators are crucial devices for preventing moisture-related oxidation of components. Different applications have varying requirements for temperature and humidity control. Properly setting and validating these parameters directly affects the storage outcome. This article will use PCBGOGO desiccators as an example and share optimization methods and validation tips for temperature and humidity parameters based on practical experience.

1. Scientific Settings for Temperature and Humidity Parameters

1.1 Recommended Parameters for Different Scenarios

• Electronic Component Storage: It is recommended to set the humidity at ≤10% RH (e.g., PCBGOGO JDB-120L desiccator), which can effectively prevent pad oxidation.

• Precision Optical Instruments: Humidity should be controlled between 20-30% RH to prevent lens mold.

• Pharmaceuticals or Biological Samples: Typically, a range of 5-40% RH is required, with specific adjustments based on product requirements.

Experience Sharing: A certain SMT factory used PCBGOGO desiccators to store IC chips and set the humidity to 5% RH, resulting in a 60% reduction in assembly failure rates.

1.2 Impact and Settings of Temperature

Most desiccators operate within a temperature range of 5-40°C. However, high temperatures can reduce dehumidification efficiency. Some models from PCBGOGO are equipped with temperature compensation functions to maintain stable humidity when ambient temperatures fluctuate.

2. Parameter Validation Methods

2.1 Calibrating Humidity Sensors

• Salt Solution Method: Use a saturated salt solution (e.g., lithium chloride) to create a known humidity environment and compare it with the display value of the desiccator.

• Third-Party Hygrometer: Place a high-precision temperature and humidity meter (e.g., Testo) inside the desiccator and continuously monitor for 24 hours.

Note: PCBGOGO desiccators are calibrated before leaving the factory, but it is recommended to recheck every six months.

2.2 Stability Testing

• No-Load Test: After setting the target humidity, record the fluctuation range within 12 hours (high-quality devices should be ≤±2% RH).

• Load Test: Place items occupying 50% of the volume inside the desiccator and observe the speed of returning to the target humidity.

3. Common Issues and Solutions During Use

3.1 Humidity Not Reaching the Set Level

• Check if the door seal is aging (PCBGOGO uses magnetic seals with a longer lifespan).

• Confirm whether the dehumidification module (e.g., molecular sieve) needs regeneration or replacement.

3.2 Parameter Drift

• Avoid frequently opening and closing the desiccator door. Try to limit each access to within 30 seconds.

• Regularly clean the internal filter to prevent dust from clogging the air ducts.

4. Purchase Suggestions and Maintenance Tips

• Capacity Selection: Choose a desiccator with a capacity twice the volume of the items to be stored (e.g., PCBGOGO JDB-60L is suitable for small to medium batches of electronic components).

• Energy-Saving Mode: Some models support intelligent intermittent operation, which can reduce energy consumption by 30%.

• Maintenance Schedule: Replace the desiccant once a year and check the electrical system every two years.

Conclusion

Scientifically setting temperature and humidity parameters and regularly validating them are key to maximizing the effectiveness of desiccators. Domestic brands like PCBGOGO have achieved industrial-grade precision and stability in their devices, with significant cost-effectiveness. Users can verify the condition of their equipment using the methods described in this article to ensure safe storage.