Preventive Maintenance for Constant Temperature and Humidity Chambers: Avoid Downtime and Ensure Testing Precision

1. Regular Calibration of Sensors and Controllers

2. Maintain the Refrigeration System (Core Component)

• Clean the condenser and evaporator coils every 2 to 3 months: Use a vacuum cleaner, brush, or high-pressure air nozzle to remove dust and debris from the coils. Clogged coils will affect heat dissipation, leading to overheating of the compressor and reduced cooling efficiency. In dusty environments, increase the cleaning frequency.
• Check refrigerant levels annually: Low refrigerant levels (caused by leaks) will significantly affect cooling performance. If you notice that the chamber’s cooling rate is slower than usual, contact our professional technicians to inspect for leaks, repair them, and refill the refrigerant to the specified level.
• Inspect the compressor relay and fan motor: Check for abnormal noises or overheating during operation. If you find any issues, such as the compressor not starting or the fan not rotating smoothly, have the components inspected and replaced promptly to avoid further damage.

3. Care for the Humidification and Dehumidification Systems

• Humidification system: Replace the humidifier filter every 3 to 6 months (or as recommended by the manufacturer). Change the water in the humidifier monthly and clean the water tray thoroughly to prevent bacterial growth and mineral deposits. For ultrasonic humidifiers, clean the atomizing plate regularly to remove scale and ensure normal atomization.
• Dehumidification system: Clean the dehumidifier filter monthly to avoid blockages. Inspect the dehumidification module periodically for wear and tear—replace it if it fails to dehumidify effectively. Ensure that the ventilation ducts are clean and unobstructed to promote air circulation and efficient dehumidification.
• Wet bulb gauze: If your chamber is equipped with a wet bulb sensor, check the gauze regularly. A dry, hard, or dirty gauze will cause inaccurate humidity readings. Replace or clean the gauze every 3 months, and ensure that the water supply to the sensor’s sink is sufficient and clean.

4. Conduct Quarterly Electrical System Inspections