Tuofeng TF-320A-408L Environmental Test Chamber for Temperature and Humidity Cycling
| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | TF-320A-408L |
| Temperature Range | −70 °C to +150 °C |
| Temperature Fluctuation | ±0.1 °C |
| Temperature Uniformity | ±0.1 °C |
| Temperature Deviation | ±0.1 °C |
| Heating Rate | ≤60 min (−70 °C to +150 °C) |
| Cooling Rate | ≤45–80 min (depending on setpoint transition) |
| Internal Chamber Dimensions (W×H×D) | 600 mm × 850 mm × 800 mm |
| Humidity Range | 20–98 % RH |
| Humidity Uniformity | ±3.0 % RH |
| Humidity Control Accuracy | ±2.0 % RH |
| Controller | TEMI (South Korea) |
| Compressor | Tecumseh (France) |
| Cooling System | Air/Water-Cooled Dual-Stage Refrigeration |
| Construction Material | SUS304 Stainless Steel |
| Insulation | High-Density Polyurethane Foam with Chlorinated Ethyl Acetate Base |
Overview
The Tuofeng TF-320A-408L Environmental Test Chamber is a precision-engineered climatic chamber designed for rigorous temperature and humidity cycling tests in accordance with international environmental stress screening (ESS) and reliability qualification protocols. It operates on a dual-stage refrigeration principle combined with PID-controlled steam humidification and electric heating, enabling stable, repeatable simulation of extreme ambient conditions—from deep cryogenic exposure at −70 °C to high-temperature thermal soak at +150 °C, alongside controlled relative humidity between 20 % and 98 % RH. Its architecture supports both steady-state conditioning and programmable ramp-soak cycles, making it suitable for accelerated life testing, HALT/HASS pre-screening, and long-term stability assessment of materials and finished products across regulated and industrial sectors.
Key Features
- High-fidelity climate control: Achieves ±0.1 °C temperature fluctuation and ±0.1 °C uniformity across the 408 L working volume, validated per IEC 60068-3-5 and ISO 16750-4 test condition tolerances.
- Dual-stage refrigeration system with French Tecumseh compressors and air/water-cooled condensation ensures rapid thermal transitions—≤60 min for full-range heating and ≤45–80 min for cooling, depending on load and target profile.
- SUS304 stainless steel interior and exterior construction provides corrosion resistance and long-term structural integrity under repeated thermal cycling and high-humidity exposure.
- Advanced TEMI controller (South Korea) with 100-segment programmability, real-time data logging, USB export, and password-protected parameter locking—compliant with audit trail requirements for GLP/GMP environments.
- Comprehensive safety architecture includes high/low refrigerant pressure switches, compressor overheat protection, independent over-temperature and over-humidity cut-offs, non-fuse circuit breakers, and integrated fault diagnostics with LED status indicators.
Sample Compatibility & Compliance
The TF-320A-408L accommodates diverse sample geometries up to 600 mm (W) × 850 mm (H) × 800 mm (D), supporting stacked trays, fixture-mounted PCBs, automotive ECUs, medical device packaging, polymer specimens, and sealed electronic enclosures. It meets or exceeds the technical requirements of GB/T 10586, GB/T 2423.1–4, GB/T 2423.22, IEC 60068-2-1, IEC 60068-2-2, and GJB 150.3/4/9. Optional calibration certificates traceable to NIM (National Institute of Metrology, China) and third-party validation reports are available upon request to support ISO/IEC 17025-accredited lab workflows.
Software & Data Management
The embedded TEMI controller enables local programming of complex multi-step profiles—including linear ramps, dwell periods, humidity modulation, and conditional branching logic. Data is recorded at user-defined intervals (1–600 seconds) and stored internally for ≥30 days. Export via USB flash drive yields CSV files compatible with MATLAB, Python Pandas, and statistical process control (SPC) platforms. For enterprise integration, optional RS485/Modbus RTU or Ethernet TCP/IP interfaces allow remote monitoring and centralized fleet management through SCADA or MES systems. All operational logs—including setpoint changes, alarm events, and system faults—are time-stamped and retained with immutable timestamps, satisfying FDA 21 CFR Part 11 requirements when paired with validated electronic signature modules.
Applications
This chamber serves critical roles in product development and quality assurance across multiple domains: evaluating thermal expansion coefficients and moisture absorption kinetics of aerospace composites; validating solder joint integrity in automotive infotainment modules under thermal shock; assessing shelf-life stability of sterile barrier systems in pharmaceutical packaging; qualifying lithium-ion battery cell performance under combined low-temperature and high-RH stress; and verifying hermetic seal reliability of MEMS sensors per MIL-STD-883H Method 1008. Its reproducible environmental profiles support root-cause analysis of field failures linked to thermal cycling fatigue, condensation-induced corrosion, or hygroscopic swelling.
FAQ
What standards does the TF-320A-408L comply with?
It conforms to GB/T 2423 series, IEC 60068-2, GJB 150, and ISO 16750-4 for temperature/humidity testing—full compliance documentation available upon order.
Can the chamber be calibrated and certified?
Yes. NIM-traceable calibration certificates (temperature and humidity) and IQ/OQ validation packages are offered as add-on services.
Is remote monitoring supported?
Standard RS485 Modbus interface is included; optional Ethernet module enables secure web-based supervision and alarm notifications via SMTP/SNMP.
What is the recommended maintenance schedule?
Compressor oil and refrigerant checks every 12 months; condenser coil cleaning every 3 months in dusty environments; humidity sensor recalibration annually.
Does the system support automated test reporting?
Yes—the TEMI controller generates timestamped test reports with pass/fail flags against user-defined limits, exportable as PDF or CSV for QA documentation.
