LabCompanion LC-120 High-Low Temperature Alternating Environmental Test Chamber

Overview

The LabCompanion LC-120 High-Low Temperature Alternating Environmental Test Chamber is an engineered solution for accelerated environmental stress testing of materials, electronic components, automotive parts, and industrial assemblies under precisely controlled thermal cycling conditions. Based on mechanical compression refrigeration—available in single-stage or cascade configurations—the chamber delivers stable, repeatable temperature profiles across wide operational ranges. Its dual-mode control architecture supports both fixed-value (constant temperature) and programmable ramp-soak-cycle operation, enabling compliance with standardized thermal shock, temperature variation, and climatic endurance protocols. The chamber’s structural design integrates a cold-rolled steel exterior with electrostatic powder coating, a corrosion-resistant stainless-steel inner chamber, and high-efficiency thermal insulation composed of polyurethane foam and glass fiber—ensuring minimal thermal leakage and long-term dimensional stability during extended test cycles.

Key Features

• Triple configurable temperature range options: -20°C to +150°C, -40°C to +150°C, and -70°C to +150°C—selected at time of order to match application-specific low-temperature requirements.
• Precision thermal performance: ±0.5°C temperature fluctuation, ≤2.0°C uniformity, and ±2.0°C deviation across working volume—validated per GB/T2423.22 and IEC 60068-2-14 methodologies.
• Robust thermal management system featuring Ni-Cr alloy heating elements, centrifugal circulation fans, and air-cooled condensation—optimized for consistent airflow distribution and minimized thermal gradients.
• Intuitive 5.7-inch color LCD touchscreen interface with native Chinese language support and real-time graphical display of setpoints, actual values, and trend curves.
• Configurable program storage: up to 10 user-defined program groups, each supporting 50 segments and 10 loop iterations—expandable upon request for complex multi-step qualification protocols.
• Comprehensive safety architecture including compressor overpressure/overload protection, fan overload detection, phase sequence and phase loss monitoring, ground-fault circuit interruption, and independent overtemperature cut-off circuits.

Sample Compatibility & Compliance

The LC-120 accommodates standard test specimens up to 450 mm × 450 mm × 500 mm (W×D×H), with two adjustable stainless-steel sample racks included as standard. Internal lighting facilitates visual inspection without chamber door opening. The unit conforms to national and military standards governing environmental test equipment—including GB11158 (high-temperature chamber specifications), GB10589 (low-temperature chamber specifications), GB10592-89 (combined high-low temperature chamber requirements), and the full suite of GB/T2423 series test methods for environmental simulation. It also satisfies GJB150.3 (military high-temperature testing) and GJB150.4 (military low-temperature testing), making it suitable for defense-grade qualification and reliability screening where traceable, auditable test execution is mandatory.

Software & Data Management

Data acquisition and archival are managed via embedded firmware with real-time sampling at configurable intervals. All measured temperature data—including setpoint, actual chamber temperature, and alarm status—are logged internally and simultaneously written to a supplied 128 MB CF card. Exported CSV files are compatible with common laboratory analysis platforms (e.g., MATLAB, Excel, LabVIEW) for post-test statistical evaluation, SPC charting, and report generation. Optional communication interfaces—including RS-232, RS-485, Ethernet, Profibus, DeviceNet, Modbus RTU, and CC-Link—enable integration into centralized facility monitoring systems and support remote supervision under ISO/IEC 17025 or GLP-aligned quality management frameworks. Audit trail functionality (including operator ID, timestamp, parameter changes, and event logs) is available when connected to compliant enterprise software environments.

Applications

The LC-120 serves critical roles across R&D validation, incoming QC inspection, and production line reliability assurance. Typical use cases include thermal cycling stress testing of printed circuit boards (PCBs) and solder joints per IPC-9701; aging studies of polymer encapsulants and adhesives; qualification of battery modules under extreme ambient conditions; verification of automotive ECU thermal survivability per ISO 16750-4; and pre-shipment environmental screening of medical device housings per IEC 60601-1. Its reproducible thermal profiles support failure mode identification, Arrhenius-based life prediction modeling, and root cause analysis of thermally induced delamination, warpage, or contact resistance drift.

FAQ

What temperature ranges are available for the LC-120 model?

The LC-120 is offered in three standard low-temperature configurations: -20°C, -40°C, and -70°C minimum, all with a common upper limit of +150°C. Selection is finalized at order entry based on application requirements.
Does the chamber support automated data export to external PCs?

Yes—real-time temperature data is continuously recorded to the internal 128 MB CF card. Files can be removed and opened directly in spreadsheet or analysis software without proprietary drivers.
Is the LC-120 compliant with international standards such as ISO or IEC?

While designed to meet Chinese national standards (GB/T2423, GJB150), its thermal performance characteristics and test methodology alignment make it suitable for use in laboratories accredited to ISO/IEC 17025, provided local validation and uncertainty budgets are established per Clause 6.4.
Can the controller be integrated into a factory-wide SCADA or MES system?

Yes—optional industrial communication protocols (Modbus RTU, Profibus DP, CC-Link, Ethernet/IP) enable bi-directional parameter control and status reporting within larger automation infrastructures.
What safety certifications does the LC-120 carry?

The unit incorporates dual-redundant overtemperature protection, electrical isolation per IEC 61000-6-2/6-4, and mechanical safeguards aligned with GB 4793.1 (safety requirements for electrical equipment for measurement, control, and laboratory use). CE marking is not applicable as it is manufactured for domestic Chinese market compliance; third-party certification (e.g., UL, TÜV) may be arranged separately.