LabCompanion P-Series Environmental Test Chamber for Temperature & Humidity Testing

Overview

The LabCompanion P-Series Environmental Test Chamber is a precision-engineered climatic chamber designed for standardized temperature and humidity conditioning of industrial products under controlled, repeatable conditions. Based on the fundamental principles of psychrometric control and forced-air convection, the chamber maintains stable thermal-hygrometric environments by integrating independent refrigeration, heating, humidification, and dehumidification subsystems. It conforms to GB/T 5170.5–1996 — the Chinese national standard aligned with IEC 60068-3-5 — for verification of environmental test equipment performance, ensuring metrological traceability and suitability for reliability validation in electronics, automotive components, packaging materials, and aerospace hardware. The system operates across a wide working envelope: ambient-starting temperature range from 0°C to +100°C (with optional +150°C capability), and relative humidity from 38% to 98% RH. Its robust architecture supports both steady-state (constant) and dynamic (cycling) exposure protocols, serving as a foundational tool for accelerated aging, failure mode analysis, and qualification testing per industry-specific stress profiles.

Key Features

• High-reliability refrigeration system featuring original French Tecumseh (Taylor) compressors and fully imported refrigeration components, configured for single-stage or dual-stage cascade operation (air-cooled or water-cooled options available)
• Digital microprocessor-based temperature and humidity controller with real-time numeric display, enabling precise setpoint programming and closed-loop feedback regulation
• Externally mounted steam-generation humidifier with stainless steel reservoir and auto-water-level detection, minimizing internal condensation and cross-contamination risks
• Interior chamber constructed from mirror-finish 304 stainless steel; exterior finished with electrostatically applied epoxy-polyester powder coating for corrosion resistance and long-term durability
• Thermal insulation composed of high-density ultra-fine glass fiber (≥100 mm thickness), delivering low thermal conductivity and minimal heat leakage during extreme condition holds
• Single-circuit forced-air circulation via low-noise centrifugal blower, ensuring uniform air distribution and meeting ≤2°C temperature uniformity specification across the working volume
• Comprehensive safety architecture including leakage current protection, compressor high-pressure cut-off, overtemperature/overcurrent relays, fan thermal cutoff, and audible alarm activation upon fault detection

Sample Compatibility & Compliance

The P-Series accommodates a broad spectrum of sample geometries and mass loads through multiple standard internal dimensions (e.g., 400×500×500 mm to 1000×1000×1000 mm working volumes). Standard features include a double-layer tempered glass observation window with anti-fog heater, Ø50 mm test lead ports (sealable with silicone grommets), LED interior lighting with moisture-resistant housing, and adjustable stainless steel sample shelves. All models are designed for integration into GLP/GMP-compliant laboratories: data logging interfaces support audit-trail-capable recorders, and operational parameters can be validated against ISO/IEC 17025 calibration requirements. While not inherently 21 CFR Part 11 compliant out-of-the-box, the system’s analog/digital I/O architecture permits third-party software integration for electronic signature and change-control workflows.

Software & Data Management

The embedded controller provides local setpoint configuration, real-time monitoring of chamber temperature and RH, and basic cycle programming (up to 99 segments). Optional RS485 or Ethernet communication modules enable remote supervision via SCADA or LabVIEW-compatible platforms. For advanced data integrity, LabCompanion offers an optional PC-based data acquisition suite supporting CSV export, time-stamped event logging, deviation alerts, and customizable report generation — suitable for internal quality audits and regulatory submissions. Raw sensor outputs (Pt100 RTD for temperature, capacitive polymer RH sensor) meet ASTM E2881-13 accuracy thresholds for environmental chamber validation.

Applications

• Reliability screening of printed circuit boards (PCBs) and semiconductor packages per JEDEC JESD22-A101 (steady-state damp heat) and JESD22-A108 (temperature-humidity-bias)
• Validation of seal integrity and material degradation in medical device packaging per ISO 11607-1
• Accelerated corrosion testing of metallic components using cyclic salt-spray/humidity protocols (ASTM B117 + G85 Annex A5)
• Stability assessment of pharmaceutical excipients and solid dosage forms under ICH Q1A(R2) long-term and accelerated storage conditions
• Performance evaluation of lithium-ion battery modules under combined thermal and humidity stress (UN 38.3, Section 38.3.4)
• Qualification of automotive ECUs per ISO 16750-4 (climate load testing)

FAQ

What standards does the P-Series chamber comply with?
It meets GB/T 5170.5–1996 for performance verification, which corresponds to IEC 60068-3-5. Calibration and validation documentation can be extended to support ISO/IEC 17025 or ASTM E2881-13 upon request.
Is the chamber suitable for continuous 24/7 operation?
Yes — its industrial-grade compressor, redundant safety interlocks, and thermally stabilized control loop are engineered for unattended long-duration testing under nominal load conditions.
Can humidity be maintained at low temperatures (e.g., below 10°C)?
The system sustains 38–98% RH across its full temperature range; however, dew-point limitations apply below 5°C. Stable sub-10°C humidification requires optional pre-conditioned air supply or enhanced dehumidifier bypass tuning.
What maintenance intervals are recommended?
Compressor oil inspection every 12 months; humidifier tank cleaning weekly; air filter replacement every 3 months; annual verification of sensor drift and chamber uniformity per GB/T 5170.5.
Are custom internal configurations available?
Yes — LabCompanion offers OEM modifications including additional ports, reinforced shelves, inert gas purge capability, and specialized internal linings (e.g., electropolished stainless for cleanroom use).