LabCompanion HC Series Humidity Test Chamber
| Brand | LabCompanion |
|---|---|
| Model | HC Series |
| Type | Humidity & High-Temperature Corrosion Resistance Tester |
| Standards Compliance | ASTM D1748, JIS E-0236, MIL-STD-1617, JAN H792, NDS K2801 |
| Internal Chamber Dimensions (W×H×D) | 71 × 71 × 72 cm |
| Test Temperature | 49 °C ± 1 °C |
| Relative Humidity | 98 %RH ± 1 %RH |
| Sample Capacity | 36 specimens |
| Airflow Rate | 0.8 m³/hr |
| Specimen Rotation Speed | 1/3 rpm |
| Net Weight | 110 kg |
| External Dimensions (W×H×D) | 91 × 91 × 132 cm |
| Power Supply | 1-phase, 220 V, 50/60 Hz, 3 kW |
Overview
The LabCompanion HC Series Humidity Test Chamber is an engineered environmental test system designed specifically for evaluating the corrosion resistance of metallic surfaces treated with rust-preventive oils, protective coatings, and passivated films under controlled high-humidity and elevated-temperature conditions. Based on standardized accelerated aging protocols—including ASTM D1748 (Standard Test Method for Rust Protection by Metal Preservatives in the Humidity Cabinet), JIS E-0236 (Japanese Industrial Standard for anti-rust performance evaluation), and MIL-STD-1617 (U.S. Department of Defense specification for humidity exposure testing)—this chamber replicates the aggressive moisture-laden environments encountered during automotive component storage, marine logistics, and long-term industrial packaging. Its core operating principle relies on sustained saturation of warm air at precisely regulated 49 °C ±1 °C and 98 %RH ±1 %RH, generating condensate formation on inclined test specimens to accelerate electrochemical oxidation pathways typical of real-world rust initiation.
Key Features
- Stable dual-control climate system maintaining ±1 °C temperature tolerance and ±1 %RH humidity accuracy over extended test durations (up to 96+ hours)
- Motor-driven specimen rotation mechanism (1/3 rpm) ensuring uniform exposure across all 36 sample positions and eliminating localized drying or pooling effects
- Corrosion-resistant stainless steel inner chamber (71 × 71 × 72 cm) with seamless welded construction and insulated double-wall housing for thermal and vapor integrity
- Precision airflow management delivering consistent 0.8 m³/hr laminar circulation—optimized to prevent stratification while avoiding turbulent erosion of thin oil films
- Digital PID controller with real-time logging capability, accessible via front-panel interface and optional RS-232/RS-485 communication ports
- Compliance-ready architecture supporting audit trails and parameter lockout functions required under GLP and ISO/IEC 17025-accredited laboratory workflows
Sample Compatibility & Compliance
The HC Series accommodates flat or mildly contoured metal substrates—including steel, cast iron, aluminum alloys, and zinc-plated components—mounted on standardized specimen racks per ASTM D1748 specimen orientation guidelines. Test coupons may be pre-treated with volatile corrosion inhibitors (VCI), solvent-based rust preventives, or polymer-based barrier coatings. The system meets essential regulatory alignment requirements for quality assurance departments operating under IATF 16949 (automotive), ISO 9001, and defense supply chain mandates referencing MIL-STD-1617 and JAN H792. All operational parameters—including setpoints, deviations, runtime, and alarm events—are recordable for traceability in FDA 21 CFR Part 11–aligned environments when integrated with validated data acquisition software.
Software & Data Management
While the base HC Series operates via embedded microcontroller with local display and manual data recording, LabCompanion offers optional PC-based monitoring software compatible with Windows OS. This application enables time-synchronized logging of temperature, humidity, and system status; configurable alarm thresholds; export to CSV or PDF reports; and integration into centralized LIMS or MES platforms via Modbus TCP or OPC UA protocols. Audit trail functionality includes user login tracking, parameter change history, and electronic signature support—fulfilling documentation rigor expected in GMP-compliant validation studies and third-party certification audits.
Applications
- Evaluation of rust-inhibiting efficacy for lubricating oils, greases, and temporary protective coatings used in automotive OEM supply chains
- Validation of coating adhesion and barrier integrity for electrophoretic paint systems, zinc-nickel plating, and chromate conversion layers
- Accelerated shelf-life assessment of packaged metal parts destined for tropical or maritime distribution routes
- Comparative benchmarking of alternative corrosion inhibitors under identical climatic stress profiles
- Supporting root-cause analysis in field failure investigations involving premature surface oxidation or white rust formation
FAQ
What standards does the HC Series directly support?
ASTM D1748, JIS E-0236, MIL-STD-1617, JAN H792, and NDS K2801.
Can the chamber operate continuously for multi-day tests?
Yes—the system is rated for unattended operation up to 168 hours with integrated safety cutoffs for overheating, over-humidity, and power interruption recovery.
Is calibration certification included with delivery?
A factory-issued calibration report traceable to NIST standards is provided; on-site IQ/OQ validation services are available upon request.
Does the HC Series meet CE or UKCA marking requirements?
The unit complies with EU Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU; CE marking is applied prior to shipment.
How is condensate managed during prolonged humidity exposure?
A dedicated drain channel and sloped chamber floor direct condensed water to an external collection reservoir, preventing accumulation and cross-contamination between test cycles.
