Walk-in Environmental Test Chamber – Temperature & Humidity Cycling System
| Key | Brand: Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 12,500 (FOB) |
| Temperature Range | −40 °C to +100 °C |
| Humidity Range | 30–98 %RH |
| Temp. Uniformity | ±0.5 °C |
| Temp. Deviation | ≤2 °C |
| Humidity Deviation | +2 to −3 %RH |
| Ramp Rate | 0.5–1.2 °C/min |
Overview
The Walk-in Environmental Test Chamber – Temperature & Humidity Cycling System is an industrial-grade climatic simulation platform engineered for rigorous reliability validation of electronic components, automotive modules, aerospace subsystems, and medical devices under dynamically controlled thermal and hygrothermal stress conditions. Based on dual-refrigeration cascade cooling, direct-expansion humidification, and precision PID-controlled steam injection, the chamber delivers stable, repeatable, and traceable environmental profiles compliant with IEC 60068-2, MIL-STD-810H, and ISO 16750-4 test methodologies. Its walk-in configuration (standard internal volume: 3–20 m³, customizable) enables full-system testing of large assemblies—such as EV battery packs, avionics racks, or HVAC units—without disassembly or spatial compromise.
Key Features
- Robust structural architecture: 100 mm thick polyurethane insulated double-wall panels with stainless steel (SUS304) interior and galvanized steel exterior; seamless welded corners ensure long-term airtightness and thermal integrity.
- Triple-stage safety interlock system: integrated overtemperature cutoff (dual independent sensors), refrigerant high-pressure shutdown, motor overload protection, ground fault detection, and emergency power disconnect—all automatically triggering audible/visual alarms and immediate power isolation.
- High-fidelity climate control: digital microprocessor controller with 0.1 °C/0.1 %RH resolution; real-time logging of setpoint, actual value, ramp rate, and alarm history with UTC timestamping.
- Energy-optimized refrigeration: semi-hermetic twin-screw compressors with hot-gas bypass modulation and variable-speed condenser fans enable precise low-temperature stability down to −40 °C without cryogenic media.
- Corrosion-resistant wetting system: stainless steel steam generator with deionized water feed, calibrated humidity sensor (Vaisala HUMICAP®), and condensate management loop compliant with ISO 12100 mechanical safety standards.
Sample Compatibility & Compliance
This chamber accommodates test specimens up to 2.4 m (H) × 2.0 m (W) × 1.8 m (D), with optional internal lighting, observation windows (tempered glass, anti-fog coating), and power feedthroughs (up to 3× 32 A, 400 V AC). It is fully compliant with GB/T 5170.2–2017 (temperature verification), GB/T 5170.5–2017 (humidity verification), and aligned with ASTM D4332, IEC 60068-2-1 (cold), -2 (dry heat), -14 (temperature cycling), and -30 (damp heat, steady state). All calibration certificates are NIST-traceable and include uncertainty budgets per ISO/IEC 17025 requirements.
Software & Data Management
Bundled PC-based software supports remote monitoring, multi-chamber synchronization, automated test sequence scripting (including dwell, ramp, hold, and step cycles), and export to CSV, PDF, or XML formats. Audit trail functionality complies with FDA 21 CFR Part 11 for electronic records and signatures—enabling user-level access control, electronic signature capture, and immutable event logging. Raw data files are stored in encrypted SQLite databases with SHA-256 hash verification; backup intervals configurable from 1 minute to 24 hours.
Applications
- Accelerated life testing of lithium-ion battery enclosures under combined thermal shock and humidity ingress conditions (per UN 38.3 Section 4.4).
- Environmental stress screening (ESS) of printed circuit board assemblies prior to burn-in (JEDEC J-STD-020D.01).
- Validation of IP67-rated automotive ECUs across −40 °C to +85 °C with 95 %RH soak per ISO 16750-4 Clause 6.2.
- Stability assessment of pharmaceutical packaging materials under ICH Q1A(R2) long-term and accelerated storage conditions.
- Qualification of military-grade connectors and cable harnesses per MIL-DTL-38999 Series III temperature-humidity-vibration profiles.
FAQ
What standards does this chamber support for calibration and verification?
It conforms to GB/T 5170.2–2017 and GB/T 5170.5–2017 for routine performance verification; optional third-party certification available per ISO/IEC 17025 with accredited lab reporting.
Is remote operation and data logging supported?
Yes—Ethernet-enabled controller with Modbus TCP and OPC UA interfaces; full SCADA integration capability with secure TLS 1.2 encryption.
What maintenance is required during the first year of operation?
Quarterly preventive maintenance includes refrigerant pressure verification, steam generator descaling, sensor recalibration traceability check, and safety circuit functional test—all documented in the GLP-compliant service logbook.
Can the chamber be configured for rapid thermal cycling (e.g., 10 °C/min)?
Standard ramp rates are 0.5–1.2 °C/min; high-speed variants with liquid nitrogen assist or electric preheat banks are available upon request (lead time: 12–16 weeks).
Are spare parts and technical documentation provided with delivery?
Yes—complete OEM technical dossier (electrical schematics, pneumatic diagrams, BOM with part numbers, maintenance schedule), plus 12-month warranty on all electro-mechanical components and controller firmware.
