LabCompanion LT-150 High-Low Temperature and Humidity Environmental Test Chamber

Overview

The LabCompanion LT-150 High-Low Temperature and Humidity Environmental Test Chamber is an engineered platform for accelerated environmental stress testing of materials, components, and finished products under precisely controlled thermal and hygrothermal conditions. Based on the principle of forced-air convection with independent heating, refrigeration, humidification, and dehumidification subsystems, the chamber maintains stable and repeatable exposure profiles across a wide operational envelope—from extreme cold (-70°C) to high-temperature bake (+150°C), coupled with humidity control from 10% to 98% RH. Its architecture supports both steady-state conditioning (e.g., constant temperature/humidity soak) and dynamic cycling (e.g., temperature ramping, humidity step changes, or combined temperature-humidity profiles), making it suitable for reliability validation, design verification, and compliance screening per international standards.

Key Features

• Robust dual-stage refrigeration system—standard on all models rated for ≤ -40°C—ensures rapid cooling response and long-term stability at sub-zero setpoints.
• Steam-based humidification system delivers clean, particle-free moisture without mineral residue buildup, supporting extended operation in high-RH regimes.
• Digital PID controller with SSR output enables fine-grained thermal and humidity regulation, achieving ±0.3°C temperature accuracy and ±2% RH control precision under standard load conditions.
• High-uniformity airflow design validated to ±0.1°C temperature and ±4% RH spatial uniformity across the working volume (per IEC 60068-3-5).
• Full stainless steel (SUS#304) construction—both interior and exterior—with multi-layer insulation (PU foam + silicone gasket sealing) minimizes thermal leakage and condensation risk.
• Integrated safety architecture includes independent over-temperature cutoff, compressor overload protection, low-water-level detection, and phase-failure monitoring—fully compliant with IEC 61000-6-2 EMC requirements.
• LCD-based programmable controller supports up to 120 segments per profile, unlimited cycle repeats, real-time data logging, and user-defined alarm thresholds.

Sample Compatibility & Compliance

The LT-150 accommodates a broad range of sample types—including electronic assemblies, polymer enclosures, automotive sensors, aerospace fasteners, pharmaceutical packaging, and medical device housings—within its 100 × 80 × 100 cm (W×D×H) internal workspace. Its modular shelving system (adjustable stainless steel trays) and optional vacuum-view window allow non-intrusive visual inspection during test execution. The chamber is configured to meet critical regulatory and industry-standard test methods, including but not limited to: ASTM D4329 (plastics UV and condensation exposure), ISO 4892-2 (plastics—lab light exposure), IEC 60068-2-1 (cold testing), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat, cyclic), and MIL-STD-810G Method 502.2. All control logic and data handling pathways are structured to support audit-ready documentation for GLP and GMP environments, with optional 21 CFR Part 11-compliant software add-ons available.

Software & Data Management

The embedded controller provides native RS-485/RS-232 communication interfaces for integration into centralized lab management systems. Optional LabCompanion DataLink™ software enables remote monitoring, real-time graphing, automated report generation (PDF/CSV), and secure user access control with role-based permissions. Raw sensor outputs—including temperature, relative humidity, and chamber status flags—are timestamped at 1-second intervals and stored internally for ≥30 days. For traceability-critical applications, optional external data loggers (e.g., six-point chart recorder interface) and analog signal outputs (0–10 V DC or 4–20 mA) are supported to feed into third-party SCADA or LIMS platforms. All firmware updates are digitally signed and validated prior to installation.

Applications

• Accelerated aging of polymeric seals, adhesives, and conformal coatings under combined thermal and moisture stress.
• Qualification testing of printed circuit board assemblies (PCBAs) per JEDEC JESD22-A104 (temperature cycling) and JESD22-A101 (damp heat).
• Stability assessment of active pharmaceutical ingredients (APIs) and drug product packaging under ICH Q1A(R2) recommended storage conditions.
• Environmental screening of automotive ECUs prior to climatic durability validation (e.g., VW 80101, GM W3177).
• Material compatibility evaluation of battery enclosures exposed to tropical or arctic climate profiles.
• Pre-conditioning of optical components and sensors prior to vibration or shock testing in multi-stress environments.

FAQ

What is the standard internal volume of the LT-150 model?

The standard internal dimensions are 100 cm (W) × 80 cm (D) × 100 cm (H), yielding a net usable volume of 800 L.
Does the LT-150 support custom test profiles beyond pre-programmed cycles?

Yes—the controller accepts user-defined multi-segment profiles with variable ramp rates, dwell times, and humidity/temperature coupling logic.
Is the chamber compatible with external data acquisition systems?

Yes—via standard analog outputs (0–10 V / 4–20 mA) and digital serial protocols (Modbus RTU over RS-485).
Can the LT-150 be validated for IQ/OQ/PQ in regulated laboratories?

Yes—LabCompanion provides factory-issued calibration certificates (NIST-traceable sensors), validation templates, and on-site protocol support for full GxP qualification.
What maintenance intervals are recommended for long-term reliability?

Compressor oil and refrigerant checks every 24 months; steam generator descaling every 6 months (frequency depends on local water quality); filter replacement every 3 months.