The Alltest EPH4, co-manufactured with Thermotron, is a compact environmental test chamber engineered for precise temperature and humidity simulation across electronic components, small assemblies, and materials. Its reduced footprint accommodates laboratory space constraints without compromising control accuracy or operational reliability.
Technical Specifications
Temperature and Humidity Control
• Temperature Range: -70°C to +180°C (configuration-dependent)
• Humidity Range: 20% to 98% RH
• Temperature Transition Rates: 5°C to 30°C per minute; faster rates available with optional LN₂ or CO₂ boost, or multiple refrigeration sections
Control Architecture
Chambers feature advanced controllers such as the 8800 Controller with 12″ color touchscreen and Windows-based operation. The 8800 provides multi-level, password-protected security, data export to spreadsheet formats, and an Activity Log retaining 15+ years of chamber history.
Chamber Operation
• Optimized airflow minimizes temperature gradients and hot/cold spots
• Proprietary controller algorithms monitor and regulate product temperature for precise testing
• Dwell periods enable product temperature acclimation to chamber air temperature
– Key Features
• Compact footprint for space-constrained installations
• Door options: vertical lift, hinged, or horizontal sliding configurations
• Heated window option for direct product observation
• Universal port for external equipment integration
– Typical Applications
• Electronic component environmental stress testing
• Small assembly qualification and durability assessment
• Materials performance evaluation under thermal cycling and humidity conditions
• Product temperature profile validation and acclimation cycles
– Connectivity & Integration
• Data Acquisition (DAQ): Product monitoring and control via thermocouple interfaces
• Serial Communication: Ethernet, RS-232, and GPIB/IEEE-488 available for system integration and data transfer
• External equipment interfacing through universal port configuration
