Our Constant Temperature and Humidity Test Chamber provides high-precision environmental simulation to evaluate the reliability, heat resistance, cold resistance, and moisture durability of materials and electronic components. Designed for rigorous quality inspection and R&D, the system ensures superior test repeatability and data integrity across cyclic, constant, and sudden temperature/humidity stresses.
Application Industries
Engineered for adaptability testing in extreme environmental combinations (high temperature/high humidity, low temperature/low humidity, thermal cycling, and steady-state tests) across the following sectors:
- Electronic appliances, laptops, and computer components
- Semiconductors, IC chips, and circuit boards (PCB)
- LED light sources, fixtures, and optoelectronic communication
- Automotive parts, wiring harnesses, and cables
- Connectors, resistors, and power supplies
- Plastic products, rubber materials, and chemical coatings
- Metal hardware, electroplating, and building materials
Core Structural Specifications
| Component | Technical Specification |
|---|---|
| Internal Liner | SUS304 Stainless Steel (1.2 mm thickness, integral welding) |
| External Casing | High-quality galvanized steel sheet with pickling, phosphating & electrostatic spraying |
| Thermal Insulation | 100 mm Polyurethane foam and superfine glass fiber (non-toxic and odorless) |
| Internal Reinforcement | Heavy-duty channel steel reinforcement to prevent body and door deformation |
| Chamber Door & Seal | Single door with double-layer silicone rubber sealing; built-in electric heating defrost wires |
| Observation Window | 200 × 300 mm multi-layer heated vacuum glass (anti-frost, wiper-free) with energy-saving luminaire |
| Shelving System | 2x Standard stainless steel shelves (Load capacity ≥ 30 kg/shelf) |
| Cable Access Ports | φ50 mm and φ100 mm feedthrough holes (custom configuration available) |
| Humidification Water Tank | 15L capacity; supports both manual and automatic water replenishment |
Engineering & Hardware Highlights
Refrigeration & Humidification System
- Imported Refrigeration Components: Original fully enclosed European/American compressors using environmentally friendly refrigerants.
- Corrosion-Resistant Evaporator: Pure copper fin heat exchanger paired with a non-sparking centrifugal fan and long-shaft blower motor.
- Water & Circuit Separation: Humidification piping is physically isolated from the control circuitry, mainboard, and power lines to eliminate short-circuit risks.
- SSR Heating Control: Contactless periodic pulse width modulation (PWM) with anti-dry-burning protection for stable steam generation.
Ergonomic & Structural Design
- Seamless Curved Enclosure: Arc-shaped exterior with durable plastic-sprayed surface treatment.
- Zero-Counterforce Handle: Flat handle mechanism allows effortless, low-impact opening and secure sealing.
- Ergonomic Controller Position: Control panel integrated into the cabinet door side for quick, comfortable operation.
Intelligent Touch Screen Control System
Equipped with an advanced 7-inch TFT true-color VGA (800×480) touch screen featuring bilingual (English/Chinese) interface, intuitive curve monitoring, and extensive program management.
- 120 Programs & 1200 Segments: Program loops up to 999 times; individual section duration up to 99 hours 59 minutes (standby settings up to 999,999 hours).
- Real-Time Graphing: Dynamic display of PV (Process Value) and SV (Set Value) curves, historical data, and group operating curves.
- Data Export & Connectivity: Built-in USB port to download historical curve logs in BMP format; optional RS-485 / RS-232 communication interfaces for PC-side monitoring.
- Memory Retention & Security: Supports program correction, scheduling, startup memory, power failure protection, screen saver, and key lock functions.
- Visual Alarm Diagnostics: On-screen fault code display with real-time troubleshooting guidance and recorded historical error logs.
Integrated Safety Protections
| Protection Category | Safety Mechanism |
|---|---|
| Electrical Grid | Reliable grounding protection, leakage/circuit breaker, phase loss, overvoltage & undervoltage protection |
| Heating & Chamber | Heater short-circuit protection, independent chamber over-temperature alarm |
| Refrigeration Unit | Compressor thermal overload protection and refrigeration overpressure protection |
| Humidification Unit | Water level controller and heater anti-dry-burning protection device |
| Air Circulation | Blower motor overload cut-off protection |
Equipment Selection Key Points
When selecting the optimal constant temperature and humidity test chamber, evaluate the following parameters according to your testing requirements:
- Temperature & Humidity Range: Define the required boundaries (e.g., -40°C to 150°C, 30% to 98% RH) and precision levels (Industrial grade ±1°C / ±3% RH vs. Laboratory grade ±0.5°C / ±2% RH).
- Chamber Volume & Sample Space: Select chamber size based on sample dimensions (e.g., 50L for small components, 225L+ for assemblies). Ensure the total sample volume occupies less than 1/3 of the internal chamber space for proper air circulation.
- Heating & Cooling Ramp Rates: For rapid thermal changes, verify ramp rate requirements (1°C to 2°C/min or higher) and compressor brand quality (e.g., Tecumseh, Panasonic).
- Humidification & Dehumidification: Determine steam/electrode humidification maintenance needs and whether mechanical refrigeration or desiccant dehumidification is required.
- Construction & Sealing: Prefer SUS304 stainless steel interior liner, high-grade polyurethane/rock wool insulation, and anti-aging silicone door seals.
- Data Logging & Communication: Confirm requirements for USB/SD card export or RS-232/RS-485 interfaces for remote data recording.
