LabCompanion P-Series Programmable Temperature and Humidity Environmental Test Chamber with Touchscreen HMI Interface

Overview

The LabCompanion P-Series Programmable Temperature and Humidity Environmental Test Chamber is an engineered solution for controlled acceleration of environmental stress testing in research laboratories, quality assurance departments, and product validation facilities. Designed around a robust dual-loop control architecture—separately regulating refrigeration, heating, and humidification subsystems—the chamber employs precise thermodynamic modeling to maintain stable, repeatable conditions across wide operational ranges. Its core measurement and control principle relies on real-time feedback from high-stability PT100 platinum resistance sensors (standard-equipped or optional), coupled with adaptive PID algorithms tuned for dynamic thermal mass compensation. The system supports both steady-state and cyclic test profiles, enabling compliance verification against internationally recognized environmental stress protocols—including temperature-only, humidity-only, and combined temperature-humidity cycling as defined in IEC 60068-2, MIL-STD-810F, and JEDEC JESD22 standards.

Key Features

• Q8-900 bilingual (English/Chinese) capacitive touchscreen HMI with intuitive menu navigation, real-time curve visualization, and on-screen program editing—no external PC required for basic operation
• High-capacity programmability: up to 120 user-defined test programs, each containing up to 10 segments (1200 total segments), with cycle repetition up to 999 times and individual segment duration configurable to 99 hours 59 minutes
• Dual-stage refrigeration system utilizing either French Tecumseh hermetic compressors or German Copeland semi-hermetic units, matched to chamber volume and low-temperature class (−20 °C, −40 °C, or −70 °C base models)
• Uniform airflow design with rear-mounted centrifugal blower and optimized baffle configuration ensures ≤±2 °C temperature deviation and ≤±3% RH humidity deviation (at >75% RH) across the working volume
• Double-glazed vacuum-insulated observation window with integrated anti-frost heater enables unobstructed visual monitoring under high-humidity conditions
• Front-access automatic water-fill system with level sensor and stainless-steel evaporative humidifier minimizes maintenance downtime and eliminates manual refilling
• Comprehensive safety architecture including over-temperature, over-humidity, compressor high-pressure, heater dry-run, and door-open alarms—all displayed with diagnostic codes on the HMI screen
• Full parameter lockout function, power-loss recovery memory, scheduled start-up, and programmable ramp/soak profiles support GLP-compliant test execution

Sample Compatibility & Compliance

The P-Series accommodates samples ranging from PCB assemblies and automotive ECUs to aerospace composites and medical device enclosures. Internal chamber dimensions span 500×600×500 mm (150 L) to 1000×1000×800 mm (800 L), all constructed with SUS304 stainless steel interior walls and polyurethane foam insulation (≥100 mm thickness). Standard 50 mm diameter test port (with sealed cover), two adjustable shelves, and fluorescent lighting facilitate instrument integration and visual inspection. The chamber meets structural and performance requirements of GB/T 2423.1–4 (IEC 60068-2 equivalents), MIL-STD-810F Methods 501.4 (high temperature), 502.4 (low temperature), and 507.4 (humidity), as well as JESD22-A101-B (constant temp/humidity), A103-C (high-temp storage), and A119 (low-temp storage). All models are designed for traceable calibration per ISO/IEC 17025 guidelines and support audit-ready documentation when paired with optional data logging accessories.

Software & Data Management

While standalone operation is fully supported via the embedded Q8-900 controller, optional RS-232 or RS-485 interfaces enable bidirectional communication with external PCs running LabCompanion’s Windows-based chamber management software. This application supports remote monitoring, real-time data streaming (temperature, humidity, alarm status), automated report generation (PDF/CSV), and electronic signature-enabled test record archiving. When configured with time-stamped audit trail functionality and user access controls, the system satisfies FDA 21 CFR Part 11 requirements for electronic records and signatures in regulated environments. Optional printer and analog recorder interfaces provide hard-copy output for QA sign-off and regulatory submission packages.

Applications

• Accelerated life testing of consumer electronics under combined thermal and hygroscopic stress
• Validation of material stability for pharmaceutical packaging under ICH Q1A(R2) climatic zone conditions
• Reliability screening of avionics components per DO-160 Section 4 (temperature) and Section 5 (humidity)
• Qualification of battery modules per UN 38.3 thermal cycling and humidity exposure requirements
• Environmental stress screening (ESS) of military-grade hardware per MIL-STD-883 Method 1004.2
• Corrosion susceptibility evaluation of metallic coatings under cyclic salt-spray–humidity–dry sequences
• Calibration and verification of secondary environmental sensors used in cleanroom monitoring systems

FAQ

What temperature and humidity ranges are available across the P-Series model variants?
Standard models operate from −20 °C to +150 °C with 30–98% RH; low-temperature variants extend to −40 °C or −70 °C, while maximum humidity remains unchanged.
Is the controller firmware upgradeable in the field?
Yes—firmware updates are delivered via USB flash drive and applied directly through the HMI interface without requiring service technician intervention.
Can the chamber be integrated into a centralized lab monitoring network?
With optional RS-485 Modbus RTU protocol support, multiple chambers can be daisy-chained and supervised by SCADA or building management systems (BMS).
Does the system include NIST-traceable calibration documentation?
Factory calibration certificates (including as-found/as-left data for PT100 and humidity sensors) are provided with each unit; full ISO/IEC 17025 accredited calibration services are available upon request.
What cooling method is recommended for the 800 L ultra-low-temperature configuration?
Water-cooled condenser systems are standard for LP-800 and SP-800 models operating below −40 °C to ensure consistent heat rejection under ambient temperatures exceeding 30 °C.