Laboratory washers feature a dual temperature protection system, over-temperature power-off protection, and high-temperature protection for the circulating pump to prevent damage caused by abnormal high temperatures. The equipment includes an emergency switch to ensure power can be cut off during critical moments. A two-point door locking mechanism ensures reliable door sealing, preventing water and steam from leaking. An electronic safety door lock prevents accidental opening during cleaning and drying processes, which could cause personal injury. Users can freely program settings such as water temperature, detergent dosage, and cleaning time.

Now that winter has arrived, temperatures in most cold regions have dropped below freezing. Just as people need to take extra care in winter to prevent issues like dry and cracked skin, laboratory washers also require increased attention to maintenance during this season, particularly in terms of anti-freezing measures. Below, we outline the winter maintenance measures for laboratory washers.

I. Anti-freezing Measures

Winter often brings rain and snow, so attention should be paid to the placement of the equipment. Keep it as far away from windows as possible to avoid damage from rain and snow erosion.

Use insulating materials such as thermal cotton or plastic foam to protect parts of the equipment that are prone to freezing or sensitive to cold. Designate a person to regularly inspect the condition of these insulating materials.

If there is no heating or the ambient temperature is low, it is recommended to take the following protective measures:

(1) After using the laboratory washer, disconnect the power supply and turn off the water supply equipment.

(2) Disconnect the connection between the water inlet pipe and the inlet valve, drain any residual water, and then reconnect.

(3) Remove the filter assembly from the bottom of the inner chamber and use a sponge to absorb any remaining moisture from the cup.

II. Maintenance Points

During the operation of the laboratory washer, do not open the chamber door arbitrarily, as this can lead to heat loss and affect drying effectiveness (hot steam may also cause injury to laboratory personnel).

After each use, turn off the water source and slightly open the chamber door to prevent moisture buildup and unpleasant odors. Use a soft cloth to gently wipe the equipment to ensure it is completely dry.

In cold weather, when the temperature of the incoming water is low, pay attention to the following two points:

(1) If the water temperature is too low, it will increase the power consumption of the heating device. Regular descaling of the equipment is recommended.

(2) If the incoming water temperature is too low, spots or a filmy residue may appear on glassware after cleaning. It is advisable to run the washer for 18–22 minutes before entering the main wash phase.