LabCompanion WGD Series Temperature and Humidity Controlled Environmental Test Chamber

Overview

The LabCompanion WGD Series Temperature and Humidity Controlled Environmental Test Chamber is an engineered solution for precise thermal stress evaluation and environmental simulation in industrial R&D, quality assurance, and production validation environments. Designed around a dual-stage mechanical refrigeration architecture with eco-friendly refrigerant (R404A/R23 cascade configuration), the chamber delivers stable, repeatable temperature control across a wide operational range—typically –70 °C to +180 °C (configurable per model variant). Its core function is to subject electronic components, optical materials, PCB assemblies, LCD modules, precision inductors, and crystalline substrates to standardized thermal cycling, steady-state conditioning, and low-temperature storage protocols. The system operates on a fundamental principle of forced-air convection with optimized airflow distribution, ensuring minimal spatial deviation (<±0.5 °C at setpoint) and high thermal uniformity throughout the working volume—critical for compliance with IEC 60068-2 and MIL-STD-810 thermal test requirements.

Key Features

• Imported programmable temperature controller with expert PID algorithm—eliminates overshoot and ensures ±0.1 °C setpoint stability under dynamic load conditions;
• Optimized air circulation design featuring tangential blower and multi-directional ducting to eliminate thermal dead zones and improve chamber-wide uniformity;
• Hermetically sealed, high-efficiency compressor system integrated with single-stage or cascade refrigeration loops—enabling rapid cooldown rates (e.g., –40 °C in ≤35 min from ambient) and long-term reliability;
• Comprehensive safety architecture including over-temperature cut-off, compressor high-pressure protection, phase failure monitoring, and door interlock circuitry;
• Modular controller options: standard 30-segment programmable logic interface or optional Ethernet-enabled controller supporting remote monitoring and alarm notification;
• Structural integrity certified via ISO 9001-compliant manufacturing processes; all internal surfaces fabricated from SUS304 stainless steel for corrosion resistance and cleanroom compatibility.

Sample Compatibility & Compliance

The WGD chamber accommodates a broad spectrum of physical specimens—from miniature semiconductor packages (e.g., SMD inductors, fiber optic ferrules) to full-size PCB panels (up to 600 mm × 600 mm × 600 mm internal dimensions, depending on model). Standard configurations include two adjustable stainless-steel shelves, a 50 mm diameter cable port with silicone gasket seal, and removable interior lighting. All units are designed and verified to meet the full scope of international environmental testing standards: GB/T 10589–1989 (low-temperature performance), GB/T 11158–1989 (high-temperature performance), GB/T 2423.1–2001 / IEC 60068-2-1 (Cold Test A), GB/T 2423.2–1989 / IEC 60068-2-2 (Dry Heat Test B), GB/T 2423.22–1987 (Temperature Change Test Nb), and GJB 150.3/150.4 (military-grade thermal profiles). Optional calibration documentation supports GLP/GMP traceability per ISO/IEC 17025.

Software & Data Management

While the base unit operates via embedded controller with local HMI, optional RS232 or Ethernet connectivity enables integration into centralized lab management systems. Compatible software packages provide real-time data logging (interval configurable from 1 s to 60 min), automated report generation (PDF/CSV), and audit-trail functionality aligned with FDA 21 CFR Part 11 requirements—including user authentication, electronic signatures, and immutable event logs. Historical trend analysis tools support root-cause investigation during failure mode analysis (FMEA) workflows. Data export complies with ASTM E2500-13 guidelines for verification and validation documentation.

Applications

• Thermal cycling validation of optoelectronic devices (e.g., laser diodes, photonic crystals) under IEC 61215 or Telcordia GR-468-CORE conditions;
• Pre-conditioning of printed circuit boards prior to solder paste reflow or conformal coating application;
• Stability assessment of liquid crystal display modules across extended temperature ranges (–30 °C to +85 °C);
• Low-temperature storage qualification for passive RF components and quartz crystal resonators;
• Accelerated life testing of encapsulated sensors and MEMS-based instrumentation;
• Material coefficient-of-thermal-expansion (CTE) screening using dimensional metrology in tandem with thermal ramping.

FAQ

What temperature range does the WGD series support?
Standard models operate from –70 °C to +180 °C; extended-range variants may reach –80 °C or +200 °C upon request.
Is humidity control available on this platform?
The base WGD series is a temperature-only chamber; optional humidity-add-on modules (WGD-H) enable 10–98% RH control with ±2% RH accuracy.
Can the chamber be validated for ISO 17025-compliant calibration?
Yes—factory-installed NIST-traceable PT100 sensors and third-party calibration certificates are available as optional add-ons.
What power supply requirements apply?
Three-phase 380 VAC ±10%, 50 Hz (standard); single-phase 220 VAC variants available for smaller capacity units.
How is thermal uniformity verified inside the working chamber?
Per IEC 60068-3-5, uniformity is measured using nine calibrated thermocouples placed on a 3×3 grid at mid-height; results are documented in the Factory Acceptance Test (FAT) report.