LabCompanion PL Series Walk-in Environmental Test Chamber (Temperature & Humidity Cycling)

Overview

The LabCompanion PL Series Walk-in Environmental Test Chamber is an engineered solution for comprehensive temperature and humidity cycling validation of industrial components, electronic assemblies, aerospace subsystems, and automotive modules under controlled, repeatable, and auditable conditions. Designed in accordance with fundamental principles of psychrometric control and forced-air thermal convection, the chamber integrates dual-refrigeration circuits, precision steam-based humidification, and multi-zone PID-controlled heating to achieve stable, uniform environmental profiles across large-volume test spaces. Its walk-in architecture enables full-scale system-level testing—such as avionics racks, battery energy storage units, or medical device enclosures—without disassembly or scaling compromises. The chamber supports both steady-state conditioning and dynamic profile execution per IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat, cyclic), and MIL-STD-810H Method 502.7/507.6, making it suitable for qualification testing in regulated development environments.

Key Features

• Robust structural design featuring double-wall insulated panels (100–150 mm polyurethane core) with seamless welded stainless steel interior and electrostatically coated galvanized steel exterior for long-term corrosion resistance.
• Dual-stage refrigeration system with cascade low-temp capability down to –65°C, utilizing environmentally compliant R404A/R23 mixed-refrigerant technology.
• Steam-type humidification system with deionized water feed, enabling precise RH control from 20% to 95% RH at temperatures ≥+10°C; integrated drain pan heater prevents condensate freezing during sub-zero cycles.
• High-efficiency axial fan array with variable-frequency drive (VFD) ensures uniform airflow distribution (±1.5°C temperature uniformity, ±3% RH uniformity per IEC 60068-3-5) throughout the entire test volume.
• Programmable controller with 10.4-inch color touchscreen interface, supporting up to 100 programmable test profiles, each with 99 segments and loop capability; real-time data logging at user-defined intervals (1 s to 60 min).
• Integrated safety architecture including over-temperature cutoff, high-humidity shutoff, refrigerant pressure monitoring, door interlock, and emergency power-off (EPO) circuit compliant with IEC 61000-6-2/-4 and EN 61000-6-3.

Sample Compatibility & Compliance

The PL Series accommodates test specimens ranging from single PCBs mounted on carriers to fully assembled vehicle ECUs, server chassis, or Class II medical equipment cabinets. Standard configurations include multiple cable ports (100–300 mm diameter), optional load-bearing floor grating (rated to 1000 kg/m²), and internal lighting with external switch control. All models are designed and verified to meet electromagnetic compatibility (EMC) requirements per EN 61326-1, safety standards per EN 61010-1, and environmental stress screening (ESS) process alignment with GEIA-STD-0004 and JESD22-A110. Optional IQ/OQ documentation packages support GLP/GMP-compliant installation and operational qualification under FDA 21 CFR Part 11–governed workflows.

Software & Data Management

LabCompanion’s proprietary WinTestPro software (Windows-based, USB/Ethernet connectivity) provides remote monitoring, multi-chamber synchronization, alarm notification via email/SMS, and automated report generation in PDF/CSV formats. Audit trail functionality records all parameter changes, user logins, and calibration events with time-stamped digital signatures. Data export complies with ASTM E2500-13 Annex A3 for raw data integrity and supports integration into enterprise LIMS or MES platforms via OPC UA or Modbus TCP protocols. Firmware updates are delivered through secure HTTPS channels with SHA-256 signature verification.

Applications

• Environmental stress screening (ESS) of printed circuit board assemblies (PCBAs) and hybrid microcircuits prior to burn-in.
• Thermal aging studies for polymer-based enclosures, gaskets, and conformal coatings used in outdoor telecom infrastructure.
• Climatic validation of lithium-ion battery modules under combined low-temperature discharge and high-humidity soak conditions.
• Pre-compliance testing for CE marking under EN 60950-1 and EN 62368-1 for IT and audiovisual equipment.
• Reliability assessment of avionics cooling systems exposed to rapid thermal transients and condensation cycles.
• Material compatibility testing for pharmaceutical packaging under ICH Q1A(R2) long-term and accelerated stability protocols.

FAQ

What is the standard lead time for a custom-configured PL chamber?
Standard delivery for catalog sizes ranges from 12–16 weeks after order confirmation; extended lead times apply for non-standard insulation thicknesses, special voltage configurations, or hazardous-area certifications (ATEX/IECEx).
Can the chamber be validated for ISO/IEC 17025 accredited laboratories?
Yes—LabCompanion provides factory-assembled IQ/OQ documentation kits traceable to NIST-certified reference standards, and supports third-party SAT (Site Acceptance Testing) with certified metrology partners.
Is remote diagnostics supported?
All PL Series chambers include embedded Ethernet port with SNMP v3 support and TLS 1.2 encrypted remote access; firmware-level diagnostic logs can be retrieved without physical intervention.
How is humidity calibrated and maintained across the full operating range?
Chambers ship with dual-sensor redundancy (capacitive RH sensor + chilled-mirror dew point analyzer); annual recalibration is recommended using saturated salt solutions per ISO 4677 and verified against NPL-traceable hygrometers.
Are spare parts and service support available internationally?
LabCompanion maintains regional technical hubs in Germany, Singapore, and the USA; critical spares (compressors, controllers, humidifiers) are stocked with 72-hour air freight availability under global service agreements.