The Darwin Chambers PH056 is a precision environmental test chamber engineered for controlled temperature and humidity simulation in pharmaceutical, agricultural, and research applications. It delivers stability testing, shelf-life studies, and comprehensive environmental validation to meet FDA and ICH GMP requirements. The chamber combines thermoelectric cooling with ultrasonic humidification for consistent control and energy efficiency.
## Technical Specifications
**Temperature Control**
• Range: 20°C to 50°C
• Accuracy (at sensor): ±0.2°C
• Uniformity: ±0.7°C
• Resolution: 0.1°C
• Sensor: 3-wire PT100 Class A RTD
• Cooling: Thermoelectric (Peltier-based) with semi-redundant capability and minimal vibration
• Heating: Integrated control working with thermoelectric cooling
• Dehumidification surfaces active at 25°C/60%RH and 30°C/65%RH setpoints
**Humidity Control**
• Range: Ambient absolute humidity to 90%RH @ 42°C dewpoint
• Accuracy (at sensor): ±0.3%RH
• Uniformity: ±2%
• Resolution: 0.1%RH
• Sensor: Rotronic HC2A-S (-50°C to 100°C, 0–100%RH; ±0.8%RH / ±0.1 K @ 23°C ±5 K)
• Humidification: Ultrasonic system operating at 24 VDC, quick-removable design
• Water specs: Conductivity 0.1–10 µS, TDS < 10 ppm; supply pressure 1–10 PSI; ¼" poly push-to-connect fitting; source within 5 feet terminated in ½" FPT valve
**Airflow**
• Plenum design with side-to-side circulation for enhanced uniformity
• Adjustable fan speeds
## Key Features
• Solid-state cooling eliminates mechanical compressor complexity
• Ultrasonic humidification prevents hot-spot mapping artifacts common in steam systems
• Semi-redundant cooling ensures operational continuity
• Class A temperature sensing for precise feedback control
• Compatible with filtered or non-filtered air exchange configurations
## Typical Applications
• Pharmaceutical stability and shelf-life testing
• GMP-compliant environmental chambers
• Agricultural research and product validation
• Accelerated aging and environmental stress screening
## Compatibility & Integration
Water supply must be provided by facility owner within 5 feet of chamber installation, terminated in shut-off valve. Humidifier operates on 24 VDC isolated supply.
