LabCompanion HLT/HA36 Temperature and Humidity Controlled Environmental Test Chamber

Overview

The LabCompanion HLT/HA36 is a precision-engineered temperature and humidity controlled environmental test chamber designed for rigorous reliability validation of electronic components, printed circuit boards (PCBs), semiconductor packaging, connectors, and other mission-critical hardware under defined climatic stress conditions. Operating on the principle of closed-loop thermodynamic control—integrating resistive heating, air-cooled dual-stage cascade refrigeration, and surface vaporization or pressure-jet humidification—the system delivers stable, repeatable, and traceable environmental profiles across its full operational range. Its architecture conforms to the fundamental requirements of accelerated life testing (ALT), highly accelerated life testing (HALT), and environmental stress screening (ESS), supporting both steady-state and programmed cycling protocols per IEC 60068-2 standards. The chamber’s thermal mass optimization and intelligent load-sensing logic enable automatic modulation of compressor duty cycles in response to internal heat dissipation from powered DUTs—reducing energy consumption while maintaining profile fidelity.

Key Features

• Compact footprint (400 × 300 × 300 mm internal volume) with top-hinged lid design—ideal for benchtop integration in QC labs and R&D cleanrooms.
• Stainless steel inner chamber ensures corrosion resistance, non-outgassing performance, and long-term dimensional stability under repeated humidity exposure.
• Dual-stage cascade refrigeration system achieves rapid cooling rates: <15 minutes from ambient to −40 °C, enabling efficient execution of temperature transition phases in JEDEC JESD22-A110 or MIL-STD-810G Method 502.6.
• High-accuracy digital PID control with optional IPC500 touchscreen interface supports multi-segment ramp-soak cycling, real-time deviation monitoring, and programmable dwell times.
• Intelligent thermal management algorithm autonomously detects internal heat load (e.g., from active PCBs or ICs under test) and dynamically adjusts refrigeration output—eliminating unnecessary compressor cycling and minimizing acoustic emissions (<65 dB(A) at 1 m).
• Integrated safety architecture includes independent over-temperature cutoff, earth leakage protection, phase-loss detection, and water-level monitoring for humidification reservoirs—fully compliant with IEC 61000-6-2 EMC immunity and IEC 61010-1 safety directives.

Sample Compatibility & Compliance

The HLT/HA36 accommodates standard 19-inch rack-mounted modules, wafer-level test fixtures, and board-level assemblies up to 300 mm tall. Its stainless interior and absence of organic gaskets or adhesives prevent contamination of sensitive optoelectronic or MEMS devices during prolonged high-humidity exposure. The system meets the mechanical and climatic test requirements of ISO/IEC 17025-accredited laboratories when operated within specified uncertainty budgets. It supports traceable calibration per ISO/IEC 17025 Clause 6.4 and is compatible with GLP/GMP documentation workflows—including audit-ready event logging, user access control, and electronic signature capability when paired with LabCompanion’s optional data acquisition module (sold separately). All electrical interfaces comply with CE marking requirements and conform to EN 61326-1 for laboratory equipment.

Software & Data Management

While the base model features standalone digital controller operation, optional connectivity enables integration into centralized lab management systems via RS-485 Modbus RTU or Ethernet TCP/IP. The LabCompanion DataLink™ software suite (v3.2+) provides real-time graphing, alarm history export (CSV/PDF), and configurable report templates aligned with FDA 21 CFR Part 11 Annex 11 requirements—including electronic audit trails, role-based permissions, and immutable data archiving. Calibration certificates are digitally signed and time-stamped; humidity sensor drift compensation algorithms are updated automatically upon firmware revision. Remote monitoring via secure HTTPS portal allows off-site supervision without compromising network security.

Applications

• Temperature cycling and damp heat testing of automotive ECUs per AEC-Q200 qualification protocols.
• Moisture sensitivity level (MSL) preconditioning of surface-mount packages prior to reflow soldering (J-STD-020).
• Long-term storage simulation for lithium-ion battery management systems under elevated humidity and elevated temperature (EOL aging studies).
• Reliability assessment of optical transceivers and RF front-end modules under combined thermal-hygric stress (IEC 60068-2-30).
• Validation of hermetic seal integrity in medical device enclosures through accelerated humidity ingress testing.
• Material compatibility screening of conformal coatings, potting compounds, and flex circuit adhesives.

FAQ

What is the maximum allowable internal heat load for stable operation at −40 °C?
The HLT/HA36 maintains specified temperature stability at −40 °C with up to 150 W of continuous internal heat dissipation. Higher loads require derating or selection of the HLT/HA80 or larger models.
Can the chamber be calibrated to NIST-traceable standards?
Yes—LabCompanion provides factory calibration with NIST-traceable reference sensors (±0.15 °C temperature, ±1.5 %RH humidity) and issues ISO/IEC 17025-compliant calibration certificates upon request.
Is the humidification system suitable for low-humidity testing down to 5 %RH?
A dedicated low-humidity configuration (5–98 %RH) is available with enhanced desiccant-assisted dehumidification and sealed recirculation ductwork—required for testing hygroscopic polymers and moisture-barrier films.
Does the system support automated test sequencing across multiple environmental profiles?
When equipped with the IPC500 controller and DataLink™ software, users can define and execute complex multi-step sequences—including simultaneous temperature/humidity ramps, dwell periods, and conditional branching based on sensor feedback.
What maintenance intervals are recommended for the refrigeration system?
Annual inspection of refrigerant charge, condenser coil cleaning, and humidity reservoir disinfection is advised. Compressor oil analysis and filter replacement are recommended every 24 months under continuous operation.