The Alltest ACW-1422 Panel Walk-In is a modular environmental test chamber engineered for validating large components, assemblies, and complete products under controlled thermal and humidity conditions. With 1,422 ft³ (40,271 L) of internal volume, the chamber delivers precise environmental simulation across demanding temperature and humidity profiles. Its panel-based construction enables rapid installation and repositioning, reducing deployment time while maintaining structural integrity and thermal performance.
Technical Specifications
Thermal Performance
• Internal Volume: 1,422 ft³ (40,271 L)
• Single Stage Refrigeration: −29°C to +85°C (−20°F to +185°F)
• Cascade Refrigeration: −68°C to +85°C (−90°F to +185°F)
• Insulation: 4″ (10 cm) urethane
Humidity Control
• Standard Range: 20% to 95% RH (dewpoint +5°C to +65°C; maximum dry bulb +70°C)
• Optional Low Humidity: 5% to 95% RH (dewpoint −10°C to +65°C; maximum dry bulb +5°C to +70°C)
Physical Construction
• Interior Surface: Stainless steel or aluminum
• Exterior Surface: Patterned aluminum or painted
• Floor Load Rating: 600 lbs/ft² (272 kg/m²)
– Key Features
• Locating pins and Cam Action Speed Locks ensure accurate panel alignment and secure joining
• 90-degree corner posts provide structural reinforcement and alignment
• Embedded steel straps and speed locks create positive chamber seals
• Variable speed airflow control for flexible test environment management
• Suspended ceiling airflow grid optimizes temperature and humidity distribution
– Conditioning Module and Airflow
Standard and custom conditioning module configurations integrate with panel assemblies. Prepackaged modules include conditioning plenum and refrigeration machinery for flexible thermal control strategies.
– Typical Applications
Suitable for military, aerospace, automotive, and industrial electronics testing requiring environmental stress screening, temperature cycling, and humidity endurance validation on large-format test articles.
– Compatibility & Integration
Optional 8800 Chamber Data Acquisition system, electronic humidity sensors, product temperature control, door interlocks, and water purification/recirculation systems enhance operational capability and data traceability.
