PCBgogo

Introduction

In the fields of electronic manufacturing, laboratory storage, and precision instrument maintenance, the moisture-proof cabinet is a key device to prevent components from being affected by moisture and oxidizing. Different application scenarios have different requirements for temperature and humidity control. How to scientifically set the parameters and verify their stability directly affects the storage effect. This article will take the PCBGOGO moisture-proof cabinet as an example, and combine practical usage experience to share the optimization methods and verification techniques of temperature and humidity parameters.

1. Scientific Setting of Temperature and Humidity Parameters

1.1 Recommended Parameters for Different Scenarios

• Storage of electronic components: It is recommended that the humidity ≤ 10%RH (such as the PCBGOGO JDB-120L moisture-proof cabinet), which can effectively prevent the oxidation of the soldering pads.

• Precision optical instruments: Control the humidity at 20-30%RH to avoid the mildew of the lens.

• Drugs or biological samples: Usually, 5-40%RH is required, and the specific value should be adjusted according to the product requirements.

• Experience sharing: A certain SMT factory uses the PCBGOGO moisture-proof cabinet to store IC chips. After setting the humidity at 5%RH, the mounting defect rate has decreased by 60%.

1.2 The Influence and Setting of Temperature

The working temperature of most moisture-proof cabinets is 5-40℃, but high temperature will reduce the dehumidification efficiency. Some models of PCBGOGO are equipped with a temperature compensation function, which can maintain the humidity stability when the ambient temperature fluctuates.

2. Parameter Verification Methods

2.1 Calibration of the Humidity Sensor

• Salt solution method: Use a saturated salt solution (such as lithium chloride) to create a known humidity environment and compare it with the display value of the cabinet.

• Third-party hygrometer: Put a high-precision temperature and humidity meter (such as Testo) into the cabinet and continuously monitor it for 24 hours.
  Note: The PCBGOGO moisture-proof cabinet has been calibrated before leaving the factory, but it is recommended to conduct a re-inspection every six months.

2.2 Stability Test

• No-load test: After setting the target humidity, record the fluctuation range within 12 hours (for high-quality equipment, it should be ≤ ±2%RH).

• Load test: Put in dry items that account for 50% of the volume and observe the speed at which the target humidity is restored.

3. Common Problems and Solutions in Use

3.1 The Humidity Cannot Reach the Standard

• Check whether the door seal is aging (PCBGOGO uses a magnetic suction sealing strip, which has a long service life).

• Confirm whether the dehumidification module (such as the molecular sieve) needs regeneration or replacement.

3.2 Parameter Drift

• Avoid opening and closing the cabinet door frequently, and try to control the time for each item retrieval within 30 seconds.

• Regularly clean the internal filter to prevent dust from blocking the air duct.

4. Purchase Suggestions and Maintenance Techniques

• Selection of capacity: Purchase a moisture-proof cabinet with a capacity twice that of the volume of the stored items (for example, the PCBGOGO JDB-60L is suitable for small and medium batches of electronic materials).

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

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

Conclusion

Scientifically setting the temperature and humidity parameters and regularly verifying them is the key to giving full play to the effectiveness of the moisture-proof cabinet. Domestic equipment such as PCBGOGO can already meet the industrial-grade requirements in terms of accuracy and stability, and the cost performance is remarkable. Users can use the methods in this article to verify the equipment status by themselves to ensure storage safety.