LabCompanion HLT/HA36 Environmental Stress Screening Chamber (Temperature & Humidity Cycling Test Chamber)

Overview

The LabCompanion HLT/HA36 Environmental Stress Screening Chamber is an engineered solution for accelerated reliability testing under controlled temperature and humidity cycling conditions. Based on the principle of programmable thermal-hygrometric stress application, it subjects electronic components, aerospace subsystems, medical devices, and industrial instrumentation to precisely defined environmental profiles—including rapid transitions between sub-zero cold soak, high-temperature bake, and high-humidity dwell phases. This chamber supports standardized test protocols aligned with MIL-STD-810H, IEC 60068-2-1 (cold), -2 (dry heat), -14 (change of temperature), and -30 (damp heat, cyclic). Its dual-stage cascade refrigeration system enables stable operation down to −20 °C (with optional −40 °C or −70 °C configurations), while surface-evaporation or pressure-jet humidification ensures repeatable RH control across the 25–98 %RH range. The unit’s compact footprint (400 × 300 × 300 mm internal volume) and castor-mounted base facilitate integration into QA labs, pilot production lines, and R&D cleanrooms without structural modification.

Key Features

• Compact benchtop design with integrated leveling castors for flexible placement and repositioning within constrained laboratory spaces.
• Stainless steel inner chamber construction ensures corrosion resistance, long-term dimensional stability, and compliance with ISO 14644-1 Class 8 cleanroom compatibility requirements.
• Programmable temperature/humidity cycling capability with up to 99 segments per profile, supporting ramp-soak-dwell sequences with user-defined rates (0.1–10 °C/min, 1–10 %RH/min).
• Intelligent thermal load detection algorithm automatically modulates compressor output based on real-time internal heat dissipation—reducing energy consumption by up to 22 % during low-load operation and minimizing acoustic emissions (<62 dB(A) at 1 m).
• Dual-stage air-cooled cascade refrigeration circuit provides consistent cooling performance without external water infrastructure; optional water-cooled configuration available for high-ambient installations.
• Imported digital PID controller with RS485 Modbus RTU interface enables seamless integration into centralized lab automation systems and SCADA networks.

Sample Compatibility & Compliance

The HLT/HA36 accommodates PCB assemblies, sensor modules, polymer housings, battery packs, and sealed optical enclosures up to 15 kg total mass. Its uniform temperature distribution (≤2 °C deviation across working volume) and stable humidity control meet the spatial homogeneity requirements specified in ASTM E2297–03 (Standard Practice for Calibration of Environmental Chambers) and ISO/IEC 17025:2017 Clause 6.4.2 for test equipment validation. All electrical safety features—including independent over-temperature cutoff, phase-loss protection, ground-fault interruption, and low-water-level shutdown—are certified to IEC 61000-6-2 (immunity) and IEC 61000-6-4 (emissions). Documentation packages support GLP-compliant audit trails when paired with optional data logging accessories.

Software & Data Management

The standard controller supports manual setpoint entry and fixed-cycle operation. When equipped with the optional IPC500 LCD touchscreen interface, users gain access to full-profile programming, real-time trend visualization, and automatic CSV export via USB 2.0. Logged data includes timestamped temperature, relative humidity, compressor status, heater duty cycle, and alarm history—structured to satisfy FDA 21 CFR Part 11 requirements for electronic records when deployed with validated user authentication and audit trail firmware (available upon request). Third-party software integration (e.g., LabVIEW, MATLAB, or custom MES platforms) is supported through open Modbus register mapping and ASCII command protocol documentation.

Applications

• Environmental qualification testing of avionics hardware per DO-160G Section 4 (temperature), Section 5 (humidity), and Section 10 (explosive atmosphere).
• Accelerated aging studies of lithium-ion battery electrolytes and solid-state polymer membranes under combined thermal-hygrometric stress.
• Validation of hermetic seal integrity in implantable medical devices using moisture ingress rate analysis per ISO 11607-1 Annex B.
• Thermal shock screening of automotive ECUs prior to AEC-Q200 stress testing cycles.
• Material compatibility assessment of adhesives, conformal coatings, and encapsulants used in offshore oil & gas instrumentation exposed to tropical marine environments.

FAQ

What is the maximum allowable sample weight inside the HLT/HA36 chamber?

The recommended maximum load is 15 kg, distributed evenly to avoid obstructing airflow or exceeding thermal mass limits that could compromise temperature uniformity.
Can this chamber be validated for ISO/IEC 17025 accreditation?

Yes—when operated with calibrated reference sensors (NIST-traceable), documented SOPs, and periodic verification using ASTM E2297 procedures, the HLT/HA36 meets metrological requirements for accredited environmental testing laboratories.
Is remote monitoring supported out-of-the-box?

Basic remote status readout (temperature, humidity, alarm flags) is available via Modbus RTU over RS485; full remote control and real-time graphing require the IPC500 touchscreen upgrade and optional Ethernet gateway module.
Does the chamber include a built-in data logger?

No—the base model does not include internal logging memory; however, the optional micro-printer or external recorder attachment provides continuous analog output recording, and digital logging is enabled via the IPC500 interface.
Are custom chamber dimensions or extended temperature ranges available?

Yes—LabCompanion offers OEM engineering services for non-standard internal volumes, −70 °C low-temperature variants, and 5–98 %RH low-humidity configurations; lead time and validation documentation apply.