ATOMFAIR® LOW TEMPERATURE FREEZING TEST CHAMBER

RESEARCH GRADE EQUIPMENT

1. Purpose & Features

The ATOMFAIR® AFDW5030L Low Temperature Freezing Test Chamber is a precision laboratory-grade -50°C 30L laboratory freezer suitable for low-temperature freezing tests and low-temperature storage of various products. Applications include frost resistance testing of pervious concrete pavement bricks, chemical and physical experiments, low-temperature testing of instruments and electrical appliances, low-temperature preservation of marine biological samples, and low-temperature testing of building materials. The unit consists of a low-temperature compressor, condenser, filter, capillary tube, evaporator, thermostat tank, digital display meter, and digital temperature control system, all housed within a durable corrosion-resistant alloy low temp chamber. For technical inquiries, contact inquiry@atomfair.com.

2. Technical Parameters

Parameter	Specification
Capacity	30 L
Minimum Temperature	-50 °C
Power Supply	AC 220 V, 50 Hz
Temperature Resolution	0.1 °C
Ambient Operating Temperature	0–23 °C
Relative Humidity	≤75%

3. Structural Features

Opening Mode: Side hinged door for easy access and sample placement.
Insulation: Thickened insulation layer for excellent thermal retention and energy efficiency.
Inner Tank: Corrosion-resistant alloy plate ensuring long-term durability under repeated freeze-thaw cycles.
Outer Shell: High-quality steel plate with robust structural integrity.
Intermediate Filler: Polyurethane insulation material providing superior thermal barrier performance.
Operation: Easy to operate, ideal for laboratory use with intuitive digital temperature control system.

4. Notes

Do not store or operate in damp environments or corrosive gas atmospheres.
When starting for the first time or after long-term non-use, run the unit for 2 hours before testing to ensure accurate data.
Turn off the power switch immediately in case of power failure; allow an interval of more than 30 minutes before restarting to avoid compressor damage.
The unit must be supervised by personnel during laboratory operation.
Prolonged operation when not in use is strictly prohibited.
Tilt angle during transportation ≤45°; remove all packaging before use.
Keep a distance of ≥50 cm from the rear wall and ≥15 cm from side walls. Place in a well-ventilated, dry area away from direct sunlight, water sources, heat sources, magnetic fields, and volatile/corrosive substances.
Use an independent socket with current capacity ≥10 A and reliable grounding.
Applicable voltage: AC 220–242 V / 50 Hz. If voltage is unstable, install a voltage stabilizer of more than 5 times the input power, adjusted to 220 V / 50 Hz / 15 A. The unit must be grounded.

5. Freezing Instructions

Leave gaps between samples and between samples and the inner tank to ensure air circulation and uniform cooling.
High-humidity or easy-dehydration samples must be wrapped in sealed food bags or plastic wrap to prevent frost buildup affecting cooling performance.
Storage of volatile, flammable, explosive materials, strong acids, strong alkalis, gasoline, alcohol, etc., is strictly prohibited.
Do not overload with excessive samples at one time to avoid slow cooling and continuous compressor operation.
After testing, cut off power, remove samples, open the door for natural defrosting, drain water, and wipe the inner chamber dry with a soft cloth.

6. Operating Instructions

Read the manual carefully before use.

Pre-operation Check:

Use an independent grounded power socket; ensure voltage 220–240 V, frequency 49–51 Hz.
Confirm the panel switch is in OFF position.

Startup:

Plug in the power, turn on the panel power switch; the display shows the internal temperature. The compressor will run after a time delay.

Operation:

After the temperature reaches the set value, place samples evenly and gradually into the chamber.

Shutdown:

First turn off the panel power switch (display off), then disconnect the external power supply.

7. Maintenance & Care

Clean the inner chamber after each test. Disconnect power and remove items before cleaning; wipe off dirt and moisture.
Do not use boiling water, acidic agents, or chemical thinners.
Wipe dry after cleaning.
Gently clean the door gasket with mild soapy water.
Clean the outer shell with clean water or a small amount of neutral detergent; avoid wetting the power cord and lower wiring to prevent electric leakage.

8. Troubleshooting

Symptom	Solution
Indicator off, no display	Check power supply and plug connection.
Indicator on, compressor not working but humming	Low voltage; install a stabilizer of more than 5 times input power.
Compressor stops within 1 minute and restarts repeatedly	Abnormal voltage; handle as above.
Compressor runs normally but cools slowly	Frequent/improper door closing; excessive or improperly placed samples; frost buildup inside.
Excessive noise	Unstable placement; loose fasteners; contact between cooling tank and compressor.

For any questions or customization needs, please contact: inquiry@atomfair.com

TAILORED SOLUTIONS FOR RESEARCH

Contact our engineering team for technical support or official quotations.

EMAIL: inquiry@atomfair.com

Manufacturer: Atomfair LLC

Brand: ATOMFAIR®

Low Temperature Freezing Test

30L Low Temperature Freezing Test Chamber -50°C ATOMFAIR®