The Cincinnati Sub-Zero ZPHS8-2-2-H/AC is an air-cooled environmental test chamber from the Z-Plus series engineered for precise temperature and humidity simulation across demanding laboratory and manufacturing test protocols. It delivers temperature control from −70°C to +190°C with humidity spanning 10% to 98% RH, supported by dual 2 hp compressors and a 7.0°C/min ramp rate. The chamber features a 24″ × 24″ × 24″ workspace with stainless steel interior, large viewing window, and integrated interior lighting for real-time observation. The EZT-570 touch screen controller provides programming, data logging, USB file transfer, Ethernet connectivity, email/text alarm notifications, and remote PC or wireless device control. Heavy-duty 75 mm casters enable mobility, while the closed-loop refrigeration system uses environmentally friendly refrigerants. Electrical operation: 230 V, 1-phase, 60 Hz at 49 A full load.
## Technical Specifications
• **Model:** ZPHS8-2-2-H/AC
• **Series:** Z-Plus Temperature/Humidity Chambers
• **Workspace Dimensions:** 24″ W × 24″ D × 24″ H (61 cm × 61 cm × 61 cm)
• **Exterior Dimensions:** 36.5″ W × 56.5″ D × 76″ H (93 cm × 143.5 cm × 193 cm)
• **Temperature Range:** −70°C to +190°C
• **Humidity Range:** 10% to 98% RH
• **Temperature Ramp Rate:** 7.0°C/min
• **Cooling:** Air-cooled with dual 2 hp compressors
• **Refrigeration:** Closed-loop system with environmentally friendly refrigerants
• **Electrical Supply:** 230 V, 1-phase, 60 Hz
• **Full Load Current:** 49 A
## Key Features
• Stainless steel interior construction with oven-baked powder-coated exterior
• EZT-570 touch screen controller (7″ standard; 10″ optional)
• Large viewing window (12.75″ H × 19.75″ W) with interior light and switch
• Over-temperature protection and temperature limit alarm to safeguard device under test
• Data logging, trending, and USB file download capability
• Ethernet control and remote access via PC or wireless device
• Multiple language support and full system security
• Alarm notifications via email or text message
• Safety relay connection for test device protection
• Heavy-duty 75 mm casters for mobility
## Typical Applications
• Product reliability and thermal cycling validation
• Material performance assessment across extreme temperature and humidity conditions
• Component qualification for aerospace, automotive, and electronics industries
• System integration and bench testing in engineering laboratories
## Maintenance Requirements
• Humidity nozzle and filter: Every 3 months or 500 operating hours
• Reservoir and pump screen: Every 2 months
• Closed-loop refrigerant system requires leak inspection before recharging
