LabCompanion LT-150 Compact Temperature & Humidity Environmental Test Chamber

Overview

The LabCompanion LT-150 Compact Temperature & Humidity Environmental Test Chamber is an engineered solution for accelerated environmental stress testing of electronic components, polymer materials, pharmaceutical packaging, and precision mechanical assemblies. Designed around a robust dual-system architecture—thermally isolated heating, cooling, humidification, and dehumidification subsystems operate independently under microprocessor-based digital control—the chamber delivers stable, repeatable exposure profiles across defined temperature and humidity domains. Its core measurement and regulation principle relies on closed-loop feedback control using platinum resistance thermometers (PT100) and capacitive humidity sensors, coupled with SSR-driven power modulation and PID algorithm tuning. This architecture ensures compliance with fundamental test integrity requirements outlined in IEC 60068-3-5 (environmental testing guidance), ISO 16750-4 (road vehicles – environmental conditions), and JIS C 0041 (humidity testing methods), making it suitable for pre-compliance screening in R&D labs and QC environments where space-constrained validation is critical.

Key Features

• Compact footprint (107 × 72 × 135 cm external) optimized for benchtop or small-lab integration without compromising internal usable volume (40 × 40 × 50 cm).
• Dual-stage refrigeration system standard on sub-zero configurations (−20°C to +150°C and below), enabling rapid thermal ramping and stable low-temperature operation down to −70°C in higher-tier variants.
• Steam-based humidification system with integrated water level monitoring and automatic drain management, minimizing mineral deposition and ensuring long-term RH stability.
• Full stainless steel (SUS#304) inner chamber construction with high-density polyurethane insulation and silicone compression gaskets—designed for corrosion resistance and thermal integrity under cyclic condensation exposure.
• LCD-based programmable controller supporting up to 120-step multi-segment cycles, real-time parameter logging, and user-defined alarm thresholds for temperature, humidity, and safety interlocks.
• Standard analog output (0–10 VDC or 4–20 mA) for external data acquisition systems, compatible with third-party chart recorders or SCADA platforms for GLP/GMP traceability.

Sample Compatibility & Compliance

The LT-150 accommodates samples up to 10 kg with dimensional constraints fitting within its 40 L internal cavity. Its uniformity specifications (±0.1°C temperature, ±4% RH) meet the spatial homogeneity requirements for Class II environmental chambers per ASTM E145–22 (Standard Specification for Gravity-Convection and Forced-Ventilation Ovens). The chamber supports standardized test protocols including MIL-STD-810H Method 502.7 (low temperature), Method 507.6 (humidity), and IEC 60068-2-30 (damp heat, cyclic). All electrical interfaces comply with IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity). Optional calibration certificates (NIST-traceable) and IQ/OQ documentation packages are available to support FDA 21 CFR Part 11–aligned validation workflows.

Software & Data Management

While the LT-150 operates autonomously via its embedded controller, optional USB or RS-485 communication modules enable direct connection to Windows-based LabCompanion ChamberLink™ software. This application provides remote monitoring, real-time graphing of T/RH trends, automated report generation (PDF/CSV), and audit trail functionality—including operator login, parameter change history, and alarm event timestamps—to satisfy GLP and ISO/IEC 17025 documentation requirements. Data export conforms to ASTM E2911–21 (standard guide for electronic records in testing laboratories), ensuring interoperability with LIMS environments.

Applications

• Accelerated aging of lithium-ion battery enclosures under combined thermal-hygric stress.
• Stability assessment of medical device adhesives per ISO 11607–2 (packaging validation).
• Pre-screening of PCB conformal coatings against moisture ingress and thermal cycling fatigue.
• Material compatibility testing for automotive interior trim under simulated monsoon/hot desert conditions.
• Qualification of optical sensor housings for condensation resistance in high-RH industrial settings.

FAQ

What is the maximum sample weight the LT-150 can accommodate without compromising thermal uniformity?
The chamber is validated for loads up to 10 kg placed centrally on the standard shelf; heavier or thermally massive samples require extended stabilization time and may necessitate reduced setpoint extremes to maintain specified uniformity.
Does the LT-150 support automated data logging without additional hardware?
Yes—the built-in controller stores up to 30 days of 1-minute interval T/RH data internally; USB export enables full retrieval without external DAQ systems.
Can the unit be configured for continuous operation at 85°C / 85% RH per JEDEC JESD22-A101?
Yes—its steam humidification system and reinforced insulation allow uninterrupted 85/85 testing; recommended maintenance intervals increase to every 150 operational hours under such sustained conditions.
Is third-party calibration support available post-installation?
LabCompanion partners with ISO/IEC 17025-accredited metrology labs in North America, EU, and APAC regions to provide on-site or return-to-factory calibration services with full uncertainty budgets.
What safety certifications does the LT-150 carry?
It bears CE marking (EMC & LVD directives), RoHS 2011/65/EU compliance, and meets UL 61010-1:2012 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use).