LabCompanion B-Series Temperature and Humidity Controlled Environmental Test Chamber

Overview

The LabCompanion B-Series Temperature and Humidity Controlled Environmental Test Chamber is an engineered platform for accelerated environmental stress testing of electronic components, optoelectronic devices, automotive modules, aerospace subsystems, and industrial materials. It operates on the principle of controlled thermal and hygrometric exposure—precisely regulating chamber air temperature and relative humidity to replicate real-world storage, transportation, and operational conditions. Unlike basic thermal ovens or dry cabinets, this chamber integrates balanced temperature-humidity control (BTHC), enabling simultaneous and independent modulation of heating, cooling, humidification, and dehumidification subsystems. Its dual-stage refrigeration architecture—offering both single-stage and cascade configurations—ensures stable operation across extreme low-temperature ranges down to −40 °C, while its high-efficiency stainless-steel humidifier and precision PT100 sensor network maintain traceable humidity control from 20% to 98% RH (extendable to ≤5% RH with optional desiccant-assisted dehumidification). Designed for laboratory-grade reproducibility and long-term reliability, the system meets stringent international test standards required for product qualification, failure mode analysis, and regulatory compliance documentation.

Key Features

• Balanced Temperature-Humidity Control (BTHC) system enabling independent, dynamic regulation of heating, cooling, humidification, and dehumidification
• Touchscreen TFT color LCD controller (UMC1200 platform) supporting multilingual interface (English, Chinese, Japanese), 1000 user-defined test programs, and 2500 programmable segments per profile
• High-uniformity airflow design with multi-wing centrifugal blower and optimized duct geometry—reducing spatial deviation to ≤±1.0 °C (temperature) and ≤±3.0% RH (at >75% RH)
• Dual-refrigeration options: single-stage mechanical compression (R507) for standard −20 °C to +150 °C operation; cascade configuration (R507 + R23) for extended low-temperature capability to −40 °C
• Robust chamber construction: SUS304 stainless steel interior, electrostatically coated cold-rolled steel exterior, high-density polyurethane + fiberglass insulation
• Integrated safety architecture including independent overtemperature cutoff, dry-heater protection, compressor overload/overheat monitoring, refrigerant high-pressure switch, and leakage current protection
• USB data logging, LAN interface (optional), printer connectivity, remote diagnostics, and real-time curve display functionality

Sample Compatibility & Compliance

The B-Series chamber accommodates a broad spectrum of sample geometries—from small PCB assemblies and battery cells to full-size instrument enclosures—via standardized internal volumes ranging from 80 L to 800 L. Its internal dimensions (e.g., 40 × 40 × 50 cm for the RB-80 model) and front-access water reservoir (15 L stainless steel tank) support unobstructed loading and maintenance. The system complies with critical national and international environmental test standards, including GB/T 10589 (low-temperature chamber specifications), GB/T 10586 (damp heat chamber requirements), GB/T 2423.1–2423.4 and 2423.34 (IEC 60068-2 series equivalents), MIL-STD-810D Method 502.2 (cold) and 507.2 (humidity), GJB 150.9 (military damp heat), and IEC 60068-2-14 (temperature/humidity cycling). These certifications ensure suitability for use in GLP-compliant laboratories, ISO/IEC 17025-accredited testing facilities, and product development workflows requiring audit-ready traceability.

Software & Data Management

The embedded UMC1200-based controller provides deterministic, non-volatile program storage with timestamped execution history and real-time parameter logging. All test data—including temperature, humidity, ramp rates, dwell durations, and alarm events—are recorded at configurable intervals and exportable via USB mass storage or optional Ethernet interface. The system supports CSV and Excel-compatible output formats for integration into LIMS environments or statistical process control (SPC) platforms. Audit trail functionality includes operator ID tagging, parameter change logs, and power-loss recovery with automatic resume. For regulated industries, optional firmware upgrades enable 21 CFR Part 11-compliant electronic signatures, role-based access control, and encrypted data archiving—facilitating FDA, EMA, or MHLW submissions where environmental validation evidence must meet ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

This chamber serves as a core tool in reliability engineering, quality assurance, and materials science laboratories. Typical applications include: thermal cycling of semiconductor packages per JEDEC JESD22-A104; high-humidity soak testing of conformal-coated PCBs; accelerated aging of lithium-ion battery electrolytes under combined thermal-hygrometric stress; validation of optical fiber connector performance in tropical climates (IEC 60794-1-2-E11); qualification of LCD modules per MIL-STD-883 Method 1004.2; and environmental screening of medical device housings prior to ISO 13485 certification. It is also widely deployed in automotive Tier-1 supplier labs for ISO 16750-4 (climate resistance) verification and in academic research for polymer degradation kinetics under variable moisture content.

FAQ

What is the difference between BTHC and conventional ON/OFF humidity control?
BTHC employs proportional-integral-derivative (PID) algorithms to modulate heating, cooling, and steam injection simultaneously—achieving tighter stability (±2.5% RH fluctuation) and eliminating overshoot common in binary control schemes.
Can the chamber operate continuously at 98% RH and 85 °C?
Yes—the stainless-steel humidifier, high-capacity condensate management, and reinforced insulation allow sustained operation at maximum specified conditions without condensation on samples or chamber walls.
Is remote monitoring supported out of the box?
Standard USB data export and optional LAN interface enable remote status viewing and limited parameter adjustment; full SCADA-level integration requires third-party OPC UA middleware.
How is calibration traceability maintained?
The system accepts external PT100 reference probes; factory calibration certificates are NIST-traceable, and internal sensors support user-initiated verification routines aligned with ISO/IEC 17025 Clause 6.5.
Are custom internal dimensions available?
Yes—LabCompanion offers OEM-engineered variants with modified chamber geometry, specialized port configurations, or integrated vibration isolation mounts upon technical review and feasibility assessment.