The Russells RHD-158-705-705-WC is a mechanically refrigerated environmental test chamber engineered to simulate altitude, temperature, and humidity conditions across aerospace, defense, automotive, and electronics manufacturing applications. This water-cooled unit delivers precise environmental control with microprocessor-based programming and optional touch-screen interface, meeting UL/CE compliance standards.
Technical Specifications
Environmental Range
• Altitude: Sea level to 30,000 m (100,000 ft)
• Temperature: −73°C to +177°C (−100°F to +350°F)
• Temperature ramp rates: 5°C/min, 10°C/min, 15°C/min, or 20°C/min average
• Humidity (optional): 10% to 95% RH; minimum dew point 4°C (40°F); maximum dry bulb 85°C (185°F)
Physical Configuration
• Chamber volumes: 8 cu ft (225 L) through walk-in configurations
• Example (G-8 model): Interior 61 × 61 × 61 cm; Exterior 82 × 127 × 196 cm
Refrigeration & Cooling
• Non-CFC refrigerant; cascade system available for extended low-temperature operation
• Water-cooled condenser (air-cooled optional)
• Water supply: minimum 50 PSIG; maximum pressures 100 PSIG, 150 PSIG, or 295 PSIG depending on application
Electrical
• 120 V control circuit transformer; 3-phase balanced load distribution
• NEC-compliant wiring; fully enclosed panel with fuse/circuit breaker protection
• High-temperature limit control and master heating contactor
– Key Features
• Microprocessor altitude/temperature/humidity programmer with automatic altitude control valves
• Direct altitude sensor and absolute pressure transducer with solid-state humidity sensing
• BlueStar Touch Screen Controller (optional)
• Redundant over/under temperature safeguard protection
• Compressor overload, suction/discharge pressure, and oil pressure protection
• Optional explosion-proof electrical configuration
• Data logging, networking, and circular/strip-chart recorder capabilities
– Typical Applications
Aerospace qualification, defense systems testing, automotive environmental validation, and electronics reliability screening under combined altitude, temperature, and humidity stress.
– Compatibility & Integration
Computer-interfaced data acquisition and system message display support automated test protocols and compliance documentation.
