The Sigma Systems M50M is a thermal chamber for environmental testing across demanding temperature ranges. It delivers precise temperature control from -40°C to +200°C, with extended-range options reaching +500°C or -185°C. The chamber accommodates multiple cooling and heating methods—cryogenic gas (LN2, LCO2), mechanical refrigeration (R-404A or R-507), or electric heating elements—plus optional air cooling via ambient exchange. A TS Series Controller with touch-screen interface provides real-time graphing, dual control modes (system and DUT), and comprehensive diagnostics logging including valve counts and equipment runtimes. The M50M supports rack mounting in standard 19″ or 24″ configurations and offers flexible DUT access through apertures, ports, and notches sized 1.25″ to 4″ I.D., with thermally resistant foam plugs minimizing parasitic heat transfer.
Technical Specifications
• Temperature Range: -40°C to +200°C (standard); -185°C to +500°C (extended options available)
• Cooling Methods: Cryogenic gas (LN2, LCO2), mechanical refrigeration, air cooling via ambient exchange
• Heating: Electric heating elements
• Refrigerant Options: R-404A, R-507
• Mounting: 19″ or 24″ rack-mount flanges
• Shelf Load Rating: 200 lbs (91 kg) distributed load
• Shelf Insulators: Temperature range -65°C to +120°C (chambers <25 sq in.)
• Standard Apertures: 1.25" to 4" I.D., round; custom sizes and shapes available
– Key Features
• TS Series Controller with touch-screen operation and real-time graphing
• DUT control mode for accelerated temperature transitions
• Fail-safe protection with independent cutoff valve option
• Multi-zone chamber capability for differential temperature testing
• Thermal plate configurations for active heat-sink simulation
• Single, dual, and top-access door configurations
• Optional interior lighting and viewing windows
• Chamber stacking for increased productivity per floor space
• Card cage mounting for burn-in applications
• Redundant cryogenic coolant cutoff valve option
• Spare solenoid valves and injectors available as wear items
– Typical Applications
• Device thermal qualification and burn-in testing
• Environmental stress screening with multi-zone requirements
• High-temperature and cryogenic component characterization
• Accelerated life testing with active thermal management
– Compatibility & Integration
The M50M integrates into broader test ecosystems with multiple communication protocols supported by the TS Series Controller. Flexible fixturing and DUT access options accommodate varied component geometries and test configurations.















