I. The Application of Low-Temperature Test Chambers
This equipment is primarily designed for testing the adaptability of electrical equipment, electronic products, their components, and other materials under low-temperature storage, transportation, and usage conditions. The test equipment is mainly used to simulate environmental conditions for products in accordance with national standards or customer-defined requirements, testing their physical properties and other related characteristics 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.
II. Main 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°C/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: Customized non-standard 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 outer shell of the box is made of cold-rolled steel plate with double-sided electrostatic powder coating, while the inner lining is constructed with SUS304 stainless steel plate. The door features a large observation window in the middle, complete with an observation light, allowing users to clearly view the testing conditions of the sample.
3. The overall appearance is aesthetically pleasing and generous. The insulation layer is ultra-fine glass wool, featuring high strength and excellent thermal insulation properties.
4. The equipment primarily uses an intelligent digital temperature controller, which is easy to learn and operate, and different functional levels of instruments are mutually compatible. The input features a digital calibration system, with built-in tables for commonly used thermocouples and thermistors for non-linear calibration, ensuring stable measurement. It is equipped with both on/off control and AI artificial intelligence control functions, with 0.2-level accuracy and various alarm modes. Features independent heating and cooling, and a unique BTHC balanced temperature control method.
5. The refrigeration system features a European TaiKang fully enclosed imported compressor set, with a mechanical single-stage refrigeration or cascade low-temperature circuit system, and an automatic control and safety protection coordination system.
6. Electrical appliances are executed with Schneider's product series, ensuring safety and stability.
V. Relevant Standards
GB 10589-89 Technical Conditions for Low Temperature Test Chambers
GB/T5170.2-1996 Method for Verification of Basic Parameters of Environmental Test Equipment for Electrical and Electronic Products - Temperature Test Equipment
GB2423.1-89 Basic Procedures for Electrical and Electronic Products - Test Procedure 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. Over-pressure and Overload Protection
5. To protect the equipment, all alarms will automatically cut off the power and emit audio alerts.
Section 7: Conditions at the Equipment Usage Site
Temperature: 15℃~35℃
2. Relative Humidity: Not greater than 85%RH
3. No severe vibration or strong electromagnetic field interference nearby
4. No high concentration of dust or corrosive substances in the vicinity.
5. No direct sunlight or other heat sources照射
6. No strong air currents should be present. If forced airflow is required around the area, it should not be directed directly onto the box.
7. The test box should be placed flat and kept level.
8. Sufficient space around the test box should be left for easy maintenance operations.
9. The installation site has good ventilation.
10. Good grounding
Section 8: Service Commitment
1. Free on-site installation, debugging, and operator training.
2. The product comes with one year of warranty from the date of delivery to the user, except for the following situations:
a. Buyer's operation error, resulting in human-induced failures and damage.
b. Other circumstances not to be borne by the supplier
3. After the warranty period expires, we offer paid services.
