I. Applications of Low-Temperature Test Chambers
This equipment is primarily designed for the storage, transportation, and use adaptability tests of electrical engineers, electronic products, their components, and other materials under low-temperature conditions. The test equipment is mainly used to simulate environmental tests on products according to national standards or customer-defined requirements under low-temperature conditions. After testing, the performance of the products is evaluated through inspections to determine if they still meet the specified requirements for product design, improvement, certification, and factory inspection.
Section II: Key Technical Specifications of the Equipment
1. Temperature Range: -20°C, -40°C, -50°C, -60°C, -70°C
2. Temperature fluctuation: ±0.5℃
3. Temperature Deviation: ≤2℃
4. Cooling Rate: 0.7～1℃/min
Section 3: Reference Specifications
| Model | Studio Size (mm) (W x D x H) | Case Size (mm) (W x D x H) |
| DW-50 | 320×350×450 | 800×840×1560 |
| DW-100 | 400×500×500 | 900×950×1610 |
| DW-150 | 500×500×600 | 950×1000×1710 |
| DW-225 | 500×600×750 | 1003×1050×1860 |
| DW-250 | 500×600×810 | 1060×1080×1890 |
| DW-500 | 700×800×900 | 1250×1200×1910 |
| DW-800 | 800×1000×1000 | 1250×1500×2010 |
| DW-010 | 1000×1000×1000 | 1450×1500×2010 |
Note: Custom sizes available according to customer's technical requirements!
Section 4: Structural Characteristics of the Equipment
1. The equipment is primarily composed of the housing, refrigeration system, air circulation system, and control system.
2. The cabinet's outer shell is made of cold-rolled steel plates with double-sided electrostatic powder coating, while the inner lining is constructed from SUS304 stainless steel plates. The door features a large observation window in the middle, equipped with an observation light, allowing users to clearly view the test conditions of the samples.
3. The overall appearance is aesthetically pleasing and generous. The insulation layer is ultra-fine glass wool, which boasts high strength and excellent thermal insulation properties.
4. The equipment primarily uses an intelligent digital temperature control instrument for temperature control, which is easy to learn and operate, and the instruments of different function levels are mutually compatible. It features a digital calibration system and built-in non-linear calibration tables for common thermocouples and thermistors, ensuring stable measurements. It is equipped with both on/off control and AI artificial intelligence control functions, with 0.2-level accuracy and multiple alarm modes. It offers independent heating and cooling, and a unique BTHC balanced temperature control method.
5. The refrigeration system features a European TaiKang fully enclosed imported compressor unit, with mechanical single-stage refrigeration or cascade low-temperature circuit system, and an automatic control and safety protection coordination system.
6. Electrical equipment is executed using Schneider's product series, ensuring safety and stability.
V. Relevant Standards
GB 10589-89 Technical Conditions for Low-Temperature Test Chambers
GB/T 5170.2-1996 Basic Method of Verification for Basic Parameters of Environmental Test Equipment for Electrical and Electronic Products - Temperature Test Equipment
GB2423.1-89 Basic Procedures for Tests of Electro-technical and Electronic Products - Test A: Low Temperature Test Method
Section 6: Safety Protection Devices for Equipment
Overload, short-circuit protection, and leakage protection.
2. Grounding Protection
Over-temperature Protection
4. Overpressure and Overload Protection
5. To protect the equipment, all alarms will automatically shut off the power and emit audio alerts.
Section 7: Equipment Usage Site Conditions
Temperature: 15℃~35℃
2. Relative Humidity: Not greater than 85%RH
3. No intense vibration or strong electromagnetic field interference nearby
4. Surrounding free from high concentration of dust and corrosive substances
5. No direct sunlight or other heat sources radiation
6. Surrounding air currents should be gentle; when forced air is required, it should not blow directly onto the case.
7. The testing box should be placed flat and kept level.
8. Adequate space around the test box should be left for ease of maintenance operations.
9. The installation site has good ventilation.
10. Good Grounding
Section 8: Service Commitment
1. Free on-site installation, debugging, and training for operators.
2. The product comes with a one-year warranty from the date of delivery to the user, except for the following circumstances:
a. Buyer's operation error, resulting in human error and damage.
b. Other circumstances not to be borne by the supplier
3. Post-warranty paid services are provided.
