LabCompanion TH-608-15 Rapid Temperature Change Thermal Shock and Humidity Chamber

Overview

The LabCompanion TH-608-15 is an upright rapid temperature change thermal shock and humidity chamber engineered for high-fidelity environmental simulation in R&D, quality assurance, and reliability testing environments. It operates on a dual-system architecture—separate refrigeration and humidification circuits—enabling precise, independent control of temperature and relative humidity across a wide operational envelope. The chamber utilizes cascade refrigeration technology with environmentally compliant refrigerants (R404A/R23) to achieve stable sub-zero operation down to −70 °C, while its steam-based humidification system ensures repeatable RH generation from 20 %RH to 98 %RH at temperatures up to +85 °C. Designed for compliance-driven laboratories, the TH-608-15 meets fundamental requirements of IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat cyclic), and ASTM D4332 for conditioning of test specimens prior to mechanical or electrical evaluation.

Key Features

• Robust stainless-steel inner chamber with seamless welded construction and anti-condensation insulation (150 mm polyurethane foam, 0.15 W/m·K thermal conductivity)
• Dual PID-controlled heating and cooling systems with real-time adaptive compensation for load-induced thermal inertia
• High-accuracy platinum resistance temperature sensors (Pt100, Class A) and capacitive RH transducers traceable to NIM (National Institute of Metrology, China)
• Touchscreen HMI with embedded controller supporting programmable ramp-soak profiles, multi-segment cycles, and user-defined alarm thresholds
• Integrated safety interlocks including over-temperature cutoff, compressor high-pressure protection, and door-open humidity suppression
• Optional Ethernet/IP interface for remote monitoring and integration into centralized lab management systems (e.g., LabVantage, STARLIMS)

Sample Compatibility & Compliance

The TH-608-15 accommodates test specimens up to 65 kg distributed load, with unobstructed airflow ensured by rear-mounted centrifugal fans and perforated stainless-steel shelves. Its chamber geometry supports standardized sample mounting per MIL-STD-810H Method 502.7 (temperature shock) and Method 507.6 (humidity). The system complies with ISO/IEC 17025:2017 calibration traceability requirements when operated with certified reference probes. For regulated industries, audit-ready features include configurable event logging (power loss, door open, setpoint deviation), password-protected parameter modification, and optional 21 CFR Part 11-compliant electronic signature modules (via LabCompanion LMS software add-on).

Software & Data Management

The embedded controller logs all critical parameters—including chamber air temperature, RH, compressor suction/discharge pressures, and heater duty cycle—at user-selectable intervals (1 s to 60 min). Raw data exports directly to CSV or Excel-compatible formats via USB flash drive. Optional LabCompanion DataBridge™ software enables real-time graphing, statistical process control (SPC) charting (X̄-R, Cpk), and automated report generation aligned with ISO 9001 internal audit templates. All logged events are time-stamped with NTP-synchronized UTC and support GLP/GMP-compliant audit trails, including operator ID, timestamp, action type, and pre-/post-value changes.

Applications

• Accelerated aging of polymer encapsulants, conformal coatings, and PCB laminates under combined thermal-hygric stress
• Qualification testing of automotive ECUs per ISO 16750-4 and AEC-Q200 stress profiles
• Pre-conditioning of lithium-ion battery cells prior to cycle life or safety testing (UN 38.3 Section 38.3.4)
• Validation of medical device packaging integrity per ISO 11607-1 Annex B (moisture barrier performance)
• Reliability screening of aerospace-grade connectors and avionics housings per RTCA/DO-160G Section 4.6 and 4.7
• Material compatibility assessment for semiconductor assembly processes involving high-RH reflow environments

FAQ

What is the typical recovery time after door opening during a −40 °C / 30 %RH test?
Recovery to within ±1.0 °C and ±2.5 %RH typically requires ≤12 minutes under standard loading conditions (30 kg aluminum mass, centered placement).
Does the TH-608-15 support nitrogen purge capability for low-oxygen testing?
Yes—optional inert gas inlet port (ISO-KF25) and pressure-regulated flow controller (0–20 L/min) are available as factory-installed accessories.
Can humidity be maintained at 150 °C?
No—maximum RH capability at +150 °C is limited to ambient dew point constraints; the specified 20–98 %RH range applies only between +10 °C and +85 °C.
Is third-party calibration certification included with shipment?
Factory calibration report (as-found/as-left) is provided; NIST-traceable calibration certificates from CNAS-accredited labs are available upon request (additional lead time and fee apply).
What maintenance intervals are recommended for long-term stability?
Compressor oil and refrigerant filter replacement every 24 months; RH sensor recalibration annually; full system performance verification per ISO/IEC 17025 every 12 months.