I. Applications of the Constant Temperature and Humidity Test Chamber
This equipment is primarily designed for electrical engineers, electronic products, their components, and other materials, to test their adaptability to storage, transportation, and use in high and low temperature, as well as humid environments. The test equipment is mainly used to simulate environmental conditions for products in accordance with national standards or customer-defined requirements, testing the physical properties and other related characteristics of the products under high and low temperature conditions. After testing, the performance of the products is evaluated through inspections to determine if they still meet the predetermined requirements, for the purposes of product design, improvement, certification, and factory inspection.
Section II: Main Technical Specifications of the Equipment
Temperature Range: -20℃ to -80℃; +150℃
2. Humidity Range: 20～98% R.H.
3. Temperature fluctuation: ±0.5℃
4. Temperature Deviation: ≤2℃
5. Cooling Rate: 0.7～1℃/min
Section 3: Reference Specifications
Model Studio Size (mm)
(W·D·H) Box dimensions (mm)
（W·D·H）
HS-50 320×350×450 800×840×1560
HS-100 450×450×500 900×950×1610
HS-150 500×500×600 950×1000×1710
HS-225 500×600×750 1003×1050×1860
HS-250 520×630×780 1060×1080×1890
HS-500 700×800×900 1250×1200×1910
HS-800 800×1000×1000 1250×1500×2010
HS-010 1000×1000×1000 1450×1500×2010
Note: Non-standard sizes can be customized according to the customer's technical requirements!
IV. Structural Characteristics of the Equipment
The equipment primarily consists of the housing, refrigeration system, air circulation system, and control system.
2. The outer shell of the box is made of SUS304 stainless steel embossed plate or Baosteel cold-rolled steel plate with electrostatic spraying, and the inner lining is made of SUS304 stainless steel plate. The door is equipped with a large observation window in the middle and comes with an observation light, allowing users to clearly see the test 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 features an intelligent digital temperature and humidity controller, which is easy to learn and use, with compatible operations across different functional levels. It utilizes a digital calibration system and includes built-in nonlinear correction tables for common thermocouples and resistance thermometers for stable measurements. It is equipped with both on/off control and AI-based intelligent control functions, with a 0.2-level accuracy and multiple alarm modes. Features independent heating and cooling, as well as the unique BTHC balanced temperature control method.
5. The refrigeration system features a fully enclosed imported compressor set from Europe's Tecumseh, with mechanical single-stage refrigeration or cascade low-temperature circuit system, and an automatic control and safety protection coordination system.
6. Humidity is circulated by using a surface-evaporation method with a stainless steel humidifier.
7. Electrical equipment is executed using Schneider's product series, ensuring safety and stability.
V. Relevant Standards
GB 10589-89 Technical Conditions for High and 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 Test Procedures for Electrical and Electronic Products - Test A: Low Temperature Test Method
GB/T2423.1-2001 GB/T2423.2-2001 GB/T2423.1993 GB/T2423.4-1993
Section 6: Safety Protection Devices for Equipment
Overload, short circuit, and leakage protection.
2. Grounding Protection
Over-temperature Protection
4. Over-pressure and overload protection
5. To safeguard the equipment, all alarms will automatically cut off power and emit audio alerts.
6. Humidity and Drying Protection
Section 7: Conditions on the Equipment's Usage Site
Temperature: 15℃~35℃
2. Relative Humidity: Not greater than 85% RH
3. No intense vibration or strong electromagnetic field interference in the vicinity
4. No high concentration of dust or corrosive substances in the vicinity.
5. No direct sunlight exposure or direct radiation from other heat sources
6. No strong air currents should be present around, and when forced air is needed, it should not be directed directly onto the box.
7. The test box should be placed flat and kept level.
8. Allow sufficient space around the test box for easy maintenance operations.
9. The installation site should have good ventilation.
10. Good Grounding
Section 8: Service Commitment
1. Free on-site installation, debugging, and training of operators.
2. The product comes with a one-year warranty from the date of delivery to the user, except for the following situations:
a. Buyer's operational error led to human error and damage.
b. Other circumstances not to be borne by the supplier
3. Offer paid services after the warranty period expires.
