The Alltest ACW-867 Panel Walk-In Chamber is a large-scale environmental test chamber engineered for temperature and humidity validation of substantial products or considerable quantities of smaller items. Its panelized construction enables rapid installation and reconfiguration, while 4 inches (10 cm) of urethane insulation maintains stable workspace conditions. The chamber accommodates product loads up to 600 lbs (272 kg) per square foot.
Technical Specifications
• Workspace Volume: 867 ft³ (24,553 L)
• Interior Dimensions: 108 × 131 × 106 inches (274 × 333 × 269 cm)
• Temperature Range (Single Stage): −34°C to 85°C (−29°F to 185°F)
• Temperature Range (Cascade): −68°C to 85°C (−90°F to 185°F)
• Humidity Range: 20% to 95% RH
• Dewpoint Range: 5°C to 65°C
• Interior Finish: Stainless steel or aluminum
• Exterior Finish: Patterned aluminum or painted surface
• Floor Load Capacity: 600 lbs/ft² (272 kg/ft²)
– Key Features
• Panelized construction with lightweight insulated panels and outside banding to prevent leaks
• Locating pins and Cam Action Speed Locks for secure panel assembly
• 90-degree corner posts engineered for structural strength and alignment
• Access ports in standard sizes (3″, 4″, 5″, 6″, 8″) with customization available; stainless steel construction with heliarc-welded interior liners
• Cam action speed lock doors with sealed humidity integrity
– Control System & Options
• Primary controller: Thermotron 8800 Controller
• Alternative controllers: 8200+, WinVCSII, AST-8800
• Product Temperature Control (PTC): Optional feature enabling up to 50% faster product temperature ramp rates via chamber over-drive until product setpoint achievement
• Product Dewpoint Control (PDC): Automatic algorithm maintaining product temperature warmer than surrounding air
• Data Acquisition (DAQ): Optional thermocouple-based monitoring and control
– Operational Requirements
• Condenser water minimum pressure differential: 30 PSIG between inlet and outlet
• Purified water required for humidity system operation
• Oil-free compressed air required
