FCJJ-31 Cryogenic Freezer User Manual

Introduction

This manual provides essential information for the safe and effective operation of the FCJJ-31 Cryogenic Freezer. The FCJJ-31 is designed for reliable storage and handling of biological samples at ultra-low temperatures, suitable for advanced research laboratories.

Safety Precautions

Always adhere to standard laboratory safety practices when operating the FCJJ-31. Special care must be taken when handling cryogenic materials. Ensure proper personal protective equipment (PPE), including cryogenic gloves and face shields, is worn at all times when interacting with the freezer or its contents. ? Always ensure adequate ventilation in the operating area.

Handling Cryogenic Liquids

Cryogenic liquids are extremely cold and can cause severe frostbite. Avoid direct skin contact. Use appropriate transfer equipment and ensure containers are properly vented.

Operation

Follow these steps for standard operation:

Setup: Ensure the freezer is placed on a stable, level surface in a well-ventilated area, away from heat sources. Connect the power cord to a grounded electrical outlet.
Pre-cooling: Allow the freezer to reach its operating temperature before loading samples. This typically takes several hours. Monitor the temperature display.
Loading Samples: Open the freezer door briefly to minimize temperature loss. Place samples inside using appropriate racks and containers. Close the door immediately.
Monitoring: Regularly check the temperature display and any status indicators. The FCJJ-31 features an audible and visual alarm system for temperature deviations. ⚠️

Control Panel

The control panel features a digital display for temperature and status, along with buttons for setting temperature, acknowledging alarms, and power. [Power Button] [Temperature Up] [Temperature Down] [Alarm Acknowledge]

Maintenance

Regular maintenance ensures the longevity and performance of the FCJJ-31.

Routine Checks

Inspect door seals for damage or ice buildup.
Clean the exterior and interior surfaces with a mild detergent and water. Ensure the unit is unplugged before cleaning.
Verify alarm functions periodically. ✔️

Defrosting

The FCJJ-31 is designed for low-temperature operation and typically does not require manual defrosting. However, if excessive ice buildup occurs on internal components, contact FCJJ technical support.

Troubleshooting

Refer to this section for common issues.

Issue	Possible Cause	Solution
Freezer not cooling	Power supply issue	Check power cord connection and circuit breaker.
Temperature alarm active	Door ajar or seal failure	Ensure door is closed properly. Inspect door seal.
Unit noisy	Improper installation or component issue	Ensure unit is level. Contact FCJJ support if noise persists.