The Thermotron S-4 is a compact environmental test chamber designed to simulate temperature and humidity conditions for small components and products. With a 4 ft³ (113 L) workspace and precise control capabilities, it delivers temperature uniformity of ±0.7°C (±1.1°F) and control tolerance of ±0.3°C (±0.5°F) across a range of -70°C to +180°C (-94°F to +356°F). The chamber integrates an 8200+ Controller with 7-inch color touchscreen, USB data export, and optional Ethernet and serial interfaces. Its space-efficient footprint suits laboratories with limited floor space while maintaining operational reliability.
Technical Specifications
Thermal Performance
• Temperature Range: -70°C to +180°C (-94°F to +356°F)
• Temperature Uniformity: ±0.7°C (±1.1°F)
• Temperature Control Tolerance: ±0.3°C (±0.5°F)
• Heating (example): -65°C to +180°C in 27 minutes; -40°C to +85°C in 10 minutes
• Cooling (example): +85°C to -40°C in 14 minutes; +180°C to -65°C in 50 minutes
• Humidity Control Range (SM models): 10% to 98% RH
• Humidity Control Tolerance: ±2.5% RH
• Humidity System Limits (SM models): Minimum dew point +7°C (+45°F); maximum dry bulb +88°C (+190°F)
Physical Dimensions
• Workspace: 20 × 20 × 20 inches (51 × 51 × 51 cm)
• Workspace Volume: 4 ft³ (113 L)
• Exterior Dimensions: 36″W × 44″D × 72″H
• Move-In Dimensions: 31 × 42 × 68 inches (79 × 107 × 173 cm)
• Shipping Weight: 700 lbs (318 kg)
Mechanical
• Compressor: 1–1 Hp
– Key Features
• 8200+ Controller with 7-inch touchscreen and Windows-like interface
• Product Temperature Control (PTC) via thermocouple attachment
• Electronic humidity sensor option for improved repeatability (SM models)
• USB data export and built-in Ethernet connectivity
• Optional GPIB or RS-232/485 interfaces
• Upgrade path to Watlow F4 Programmer/Controller with LimitSD temperature limit control
• Customizable access ports for product integration
– Electrical Specifications
• 208V, 1 Phase, 60 Hz: 27A
• 208V, 3 Phase, 60 Hz: Available
• 230V, 1 Phase, 60 Hz: 21A or 27A configurations
• 220V, 1 Phase, 50 Hz: 25A
– Typical Applications
Electronic component validation, thermal cycling tests, humidity exposure testing, and accelerated life testing for small assemblies and discrete products.
