Damp Heat Test Chamber

Damp Heat Test Chamber

Damp heat test chamber +10°C to +95°C, 40–98% RH. IEC 60068-2-78 compliant for humidity endurance testing of PCBs and electronics. Get a quote.

A temperature and humidity chamber (also referred to as a humidity chamber, climate chamber, or stability chamber) is a controlled-environment test enclosure that independently regulates both temperature and relative humidity. It is used to simulate real-world environmental conditions — from cold storage to tropical heat and humidity — to evaluate how products perform and degrade over time. Temperature humidity chambers are a cornerstone of accelerated life testing (ALT) and HALT/HASS programmes. They are commonly used to meet requirements under IEC 60068-2, MIL-STD-810, JEDEC JESD22, and ICH Q1A pharmaceutical stability guidelines.

Key Specifications

  • Temperature: +10°C to +95°C
  • Humidity: 40% to 98% RH
  • Stability at 85°C / 85% RH for PV testing
  • Designed for long-duration 1000-hour+ tests
  • Stainless steel construction for corrosion resistance

Key Features

  • Wide Temperature Range: -40°C to +180°C (standard), -70°C to +180°C (ultra-low option)
  • Precise Humidity Control: 10% to 98% RH with ±2% RH stability
  • Rapid Ramp Rates: 3–5°C/min heating, 1.5–3°C/min cooling for accelerated testing
  • PLC Touchscreen Controller: Intuitive interface with programmable multi-step test profiles
  • Premium Stainless Steel Construction: SS-304/316 interior for corrosion resistance
  • Forced-Draft Airflow: Advanced circulation with adjustable louvers for uniform distribution
  • IEC 60068 Compliant: Standards-ready with pre-loaded test protocols
  • Data Logging & Analytics: Continuous recording with USB/RS-485 connectivity
  • Observation Window with Interior Lighting: Monitor specimens without opening chamber
  • Eco-Friendly Refrigerants: CFC-free R404A or R23 for environmental compliance
  • Advanced PT-100 Sensor Arrays: Class A precision thermocouples ensure ±0.5°C stability across the entire chamber volume, meeting IEC 60068 uniformity requirements.
  • CFC-Free Refrigeration: All units use eco-friendly R404A or R23 refrigerants, reducing environmental impact while maintaining -70°C to -40°C cooling performance.
  • Programmable Multi-Step Profiles: PLC touchscreen controller enables complex HALT/HASS cycling with automatic ramp and soak transitions, simplifying accelerated life testing.

Applications

  • Automotive: Dashboard, wiring harness, lighting system durability under extreme climates
  • Aerospace & Defense: Component qualification, altitude/thermal cycling for flight systems
  • Electronics & Semiconductors: PCB reliability, IC packaging validation, thermal cycling
  • Pharmaceuticals: Stability testing per ICH Q1A for shelf-life determination
  • Renewable Energy: Solar panel efficiency, battery thermal performance, wind turbine materials
  • Materials Science: Polymer aging, adhesive bond strength, corrosion resistance
  • Telecommunications: Equipment reliability in extreme climate zones
  • Food & Beverage: Shelf-life simulation, packaging material degradation

Compliance Standards

  • IEC 60068-2-1 — Cold testing
  • IEC 60068-2-2 — Dry heat testing
  • IEC 60068-2-78 — Damp heat (steady state)
  • IEC 60068-2-30 — Damp heat (cyclic)
  • MIL-STD-810 — Methods 501, 502, 507 (environmental testing)
  • JEDEC JESD22-A101 — Steady state humidity bias testing
  • ICH Q1A — Pharmaceutical stability testing guidelines
  • ASTM D4169 — Packaging during storage and transport
  • ISO 2533 — Standard atmosphere specifications

Safety Features

  • Dry-run protection for steam generation systems
  • Independent safety thermostat for over-temperature
  • Water level monitoring with auto-cutoff
  • Circuit breakers for heater and fan protection

Optional Features

  • Multi-channel temperature/humidity data logging
  • Exterior stainless steel body (available on request)
  • Automated water replenishment from deionized source
  • Customised sample racks for PV junction boxes

How It Works

  1. Prepare samples and place them on the reinforced shelving
  2. Setup the target temperature (e.g., 85°C) and RH (e.g., 85%)
  3. The system slowly ramps to prevent condensation on samples
  4. Maintain conditions for the required duration (often 1000 hours)
  5. The controller logs the environment to ensure zero downtime or deviation

Datasheets & Resources

  • Temp Range
  • Humidity Range
  • Stability
  • Power Supply

Frequently Asked Questions

Can this chamber run for 1000 hours continuously?

Yes. Our damp heat chambers are engineered for continuous, stable operation for long-duration ageing tests.

Is it suitable for the 85/85 test?

Absolutely. This is the primary application for this chamber, especially for the renewable energy sector.

Do you provide racks for solar cells?

Yes. We can customise the internal racking and trays to suit various sizes of solar PV modules.

What kind of water is required?

We recommend deionized (DI) water with low conductivity to prevent scale build-up in the steam generator.

Is remote alarming available?

Yes. The system can be configured to send alerts if the conditions deviate from the setpoints.

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