LabCompanion SP-1000U Programmable Temperature and Humidity Chamber

Overview

The LabCompanion SP-1000U Programmable Temperature and Humidity Chamber is an engineered environmental test system designed for precise, repeatable simulation of dynamic thermal and hygrothermal stress conditions. Based on the principle of mechanical compression refrigeration—employing either single-stage or cascade (two-stage) refrigeration cycles—the chamber delivers controlled temperature ranges from −70 °C to +150 °C and humidity levels from 10 %RH (with optional dehumidification module) to 98 %RH. Its core architecture integrates thermodynamic equilibrium via Balanced Temperature and Humidity Control (BTHC), ensuring stable setpoint maintenance while minimizing energy consumption and thermal overshoot. The chamber complies with internationally recognized environmental testing standards including IEC 60068-2, MIL-STD-810D, GB/T 2423 series, and GJB 150.9, making it suitable for qualification testing in electronics, aerospace components, battery systems, PCB assemblies, optical devices (e.g., LCDs, fiber optics), and medical device packaging under GLP- and GMP-aligned laboratory workflows.

Key Features

• Energy-efficient design: Achieves up to 30 % electricity reduction and 20 % water savings versus conventional chambers, utilizing R507—a non-ozone-depleting, low-GWP HFC refrigerant compliant with current EU F-Gas and EPA SNAP regulations.
• Dual refrigeration architecture: Selectable single-stage (for standard operation) or cascade two-stage mechanical compression system enables rapid cooling to −70 °C with ≤90-minute ramp time (from +20 °C), and heating to +150 °C in ≤60 minutes.
• Robust chamber construction: Inner chamber fabricated from electropolished SUS304 stainless steel; outer enclosure in either SUS304 brushed stainless or electrostatically coated cold-rolled steel; high-density polyurethane + fiberglass insulation ensures thermal integrity and long-term dimensional stability.
• Advanced control platform: Equipped with the ETAC820 touchscreen controller (Japan-sourced), featuring a 7-inch color LCD interface, PID-based closed-loop regulation, ±0.1 °C temperature resolution and ±1 %RH humidity resolution, and support for 50 programmable profiles with up to 2500 total segments.
• Intelligent safety architecture: Includes independent overtemperature cutoff, dry-heater protection, low-water-level detection, compressor high-pressure/overcurrent monitoring, ground-fault circuit interruption (GFCI), and real-time fault logging with audible/visual alerts.
• Uniform environmental distribution: Optimized centrifugal air circulation system with adjustable rear-mounted blower ensures ≤±2.0 °C temperature uniformity and ≤±2.5 %RH humidity uniformity across the 1000 L working volume (1000 × 1000 × 1000 mm internal dimensions).
• Digital connectivity: Integrated LAN port supports SCADA-compatible IPC architecture for centralized monitoring of up to 200+ units; USB 2.0 interface enables secure, encrypted data export (including real-time curves and event logs) without network dependency.

Sample Compatibility & Compliance

The SP-1000U accommodates diverse sample geometries through its large internal cavity and standardized Φ50 mm cable port (supplied with sealing cap). It supports both static and dynamic load configurations—including stacked PCB racks, battery modules in thermal trays, and optoelectronic subassemblies mounted on custom fixtures—without compromising airflow homogeneity. All operational parameters are validated per ISO/IEC 17025-accredited calibration procedures traceable to NIM (China National Institute of Metrology). The chamber meets mandatory requirements for environmental stress screening (ESS) in accordance with IPC-9701A, JEDEC JESD22-A108, and automotive AEC-Q200 qualification protocols. Its controller firmware implements audit-trail functionality aligned with FDA 21 CFR Part 11 for electronic record integrity, including user authentication, timestamped action logs, and immutable parameter change history.

Software & Data Management

The embedded ETAC820 controller supports dual operating modes: fixed-value (constant condition) and multi-step programmable sequences. Each profile allows segment-wise definition of ramp rates, dwell durations (0–999 h 59 min), cycling logic (partial or full loop repetition up to 999 cycles), and conditional branching. Real-time graphical display shows current setpoints, measured values, deviation bands, and remaining segment time. Data logging occurs at user-configurable intervals (1–600 seconds), stored internally and exportable via USB to CSV or PDF formats. Optional remote monitoring software provides browser-based access to live telemetry, historical trend analysis, alarm dashboards, and automated report generation (PDF/Excel) compliant with ISO 13485 and IATF 16949 documentation requirements.

Applications

This chamber serves as a critical tool in reliability engineering laboratories for accelerated life testing (ALT), HALT/HASS, and pre-compliance validation. Typical use cases include: thermal cycling of lithium-ion battery cells under variable SOC and humidity; moisture sensitivity level (MSL) evaluation of surface-mount packages per J-STD-020; condensation resistance testing of outdoor telecom enclosures; aging studies of polymer-based medical device housings; and humidity-induced leakage current assessment in high-voltage insulators. Its wide operating envelope also supports R&D activities in material science—such as studying glass transition behavior in thermoplastics or hygroscopic swelling kinetics in composite laminates—under tightly controlled climatic variables.

FAQ

What is the maximum allowable sample mass for thermal stability testing?

Thermal stability is maintained with total sample mass ≤15 kg when uniformly distributed; heavier loads require derating per ASTM E1510 guidance.

Does the controller support 21 CFR Part 11-compliant electronic signatures?

Yes—the ETAC820 firmware includes role-based user accounts, digital signature capture for protocol approval, and tamper-evident audit trails meeting Part 11 Subpart B requirements.

Can the chamber operate continuously at 10 %RH with optional dehumidification?

Yes; the integrated desiccant-assisted dehumidification module achieves and sustains ≤10 %RH at temperatures ≥25 °C, verified per GB/T 10586 Annex C.

Is third-party calibration certification available?

Certified calibration reports (NIST-traceable sensors, uncertainty budget included) are available upon request and conform to ISO/IEC 17025 Clause 6.5.

What maintenance intervals are recommended for optimal performance?

Compressor oil inspection every 2000 operating hours; refrigerant leak check annually; filter replacement every 6 months; full system verification per GB/T 5170.2 every 12 months.