1. Overview
The HD-E702-30K60 Desktop Climate Chamber is a compact, high-performance solution for simulating extreme environmental conditions including high/low temperatures and damp heat. With a wide temperature and humidity control range, this chamber is ideal for product reliability testing during development, transportation, and storage.
Engineered for precision, it serves a wide range of industries such as electronics, automotive, aerospace, metallurgy, new materials, and instrumentation.
2. Key Features
2.1 Cooling System
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Dual-stage cascade cooling with France Tecumseh compressors
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Uses eco-friendly refrigerants: R404A / R23
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Efficient low-temperature operation across different zones
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P.I.D + S.S.R control for accurate and stable performance
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Temperature and humidity resolution up to 0.1°C
2.2 Temperature & Humidification System
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Independent heating and humidification control
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Heating system: High-speed nickel-chromium alloy wire
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Humidification: Stainless steel tube with built-in nickel-chromium heater
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Automatic water replenishment system for continuous humidity control
2.3 Control System
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Sensor: High-accuracy Vaisala electronic sensor
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Controller: Advanced SongHua controller
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User Interface:
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Displays both setpoint (SV) and real-time (PV) values
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Cycle count, remaining test time, total runtime
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Graphical programming and status view
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Fixed or programmable operation modes
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Connectivity Options:
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Standard RS-232 / RS-485 ports
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Optional Ethernet for remote monitoring and control
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2.4 Safety & Protection
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Electrical leakage protection
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Over-temperature protection
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Compressor overvoltage/overload protection
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Heater short-circuit protection
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Water shortage alarm
3. Technical Specifications
3.1 Capacity & Construction
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Internal Dimensions: 350 × 200 × 350 mm (24.5L)
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External Dimensions: Approx. 600 × 1150 × 950 mm
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Internal Material: 1mm SUS#304 stainless steel, mirror finish
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External Material: 1mm cold-rolled steel, powder coated
3.2 Temperature Performance
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Range: –60°C to +150°C
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Fluctuation: ±0.5°C
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Uniformity: ≤2°C
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Rate of Change: 1°C/min or 3°C/min (no load)
3.3 Humidity Performance
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Range: 20% RH to 98% RH
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Fluctuation: ±2% RH
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Uniformity: ±3% RH
3.4 Power Supply
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Power Source: Single-phase AC 220V, 50Hz
3.5 Additional Components
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Compressors: Dual France Tecumseh units (cascade cooling)
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Cooling Type: Air-cooled condenser with cooling fans
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Humidifier: Stainless steel with automatic water supply
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Heater: Nichrome stainless steel
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Sample Trays: 2 × SUS#304 stainless steel
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Cable Port: Ø50 mm for test lead access
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Evaporator: Finned tube heat exchanger
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Dry Filter: Filters moisture, acids, and particles to prevent system damage
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Door Handle: Explosion-proof, user-friendly
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Insulation: 100mm polyurethane + high-density glass fiber
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Viewing Window: Double-layer vacuum glass with heated anti-fog coating
4. Compliance & Standards
This chamber complies with the following standards for environmental simulation testing:
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GB 2423.1-2008 / IEC 60068-2-1:2007
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GB/T 2423.2-2008
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GJB 150.3A-2009
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GJB 150.4A-2009
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GB 2423.22-2008
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GB/T 2424.5-2006