OK-HC-800.00 Sand and Dust Test Chamber
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | OK-HC-800.00 |
| Silica Content | 97–99% SiO₂ |
| Dust Concentration Range | 0.1–10.6 ± 7 g/m³ |
| Dust Velocity | 8.9 ± 1.2 m/s |
| Sand Concentration Range | 1.1 ± 0.25 to 2.2 ± 0.5 g/m³ |
| Sand Velocity | 0–29 m/s |
| Compliance | IP5X/IP6X, ISO 20653, MIL-STD-810G/H, GJB 150.12A |
Overview
The OK-HC-800.00 Sand and Dust Test Chamber is an engineered environmental simulation system designed to evaluate the ingress protection (IP) performance, abrasion resistance, and functional reliability of enclosures and components under controlled airborne particulate exposure. Based on the Couette-type airflow principle and gravity-assisted particle suspension dynamics, the chamber generates reproducible dust-laden or sand-laden airflows that replicate real-world desert, arid, or industrial particulate environments. It operates in accordance with internationally recognized test standards—including IEC 60529 (IP5X/IP6X), ISO 20653 for road vehicles, MIL-STD-810G Method 510.6 and MIL-STD-810H, as well as GJB 150.12A for military equipment—ensuring traceable, auditable, and repeatable test outcomes suitable for quality assurance, design validation, and regulatory compliance documentation.
Key Features
- Stainless steel inner chamber constructed from SUS 304 grade material with electropolished interior surfaces to minimize particle adhesion and facilitate cleaning.
- Adjustable rotational sample turntable (0–10 rpm) compliant with IP6X requirements for uniform exposure of all enclosure surfaces.
- Dual-mode operation: programmable dust mode (low-velocity, fine-particle suspension) and sand mode (high-velocity, abrasive particle impact), each with independent concentration and velocity control.
- High-efficiency multi-stage filtration system (HEPA + cyclonic pre-separator) prevents external contamination and ensures operator safety and laboratory air integrity.
- PLC-based control system with 7-inch color touchscreen interface, supporting multi-step test profiles, real-time parameter logging, and USB data export for GLP/GMP-aligned record retention.
- Optimized aerodynamic wind tunnel design with laminar flow guides and turbulence-reducing baffles to achieve spatially uniform particle distribution across the test volume (±15% deviation per IEC 60529 Annex B).
Sample Compatibility & Compliance
The OK-HC-800.00 accommodates samples up to 800 L effective working volume (W × D × H: 1000 × 800 × 1000 mm), with recommended maximum sample displacement ≤33% of chamber volume to preserve airflow homogeneity. It supports standardized test configurations for automotive lighting assemblies, EV battery enclosures, outdoor telecom cabinets, UAV housings, and industrial sensors. All operational parameters—including dust concentration (0.1–10.6 ± 7 g/m³), sand concentration (1.1–2.2 ± 0.5 g/m³), and air velocity (dust: 8.9 ± 1.2 m/s; sand: 0–29 m/s)—are calibrated against NIST-traceable reference instruments and validated per ISO/IEC 17025 procedures. The system is fully compatible with audit-ready documentation workflows required under FDA 21 CFR Part 11, ISO 9001, and IATF 16949 quality management systems.
Software & Data Management
The embedded control firmware supports user-defined test sequences with up to 99 programmable steps, including ramped velocity profiles, timed concentration pulses, and conditional logic triggers. All sensor readings (air velocity, mass concentration, temperature, runtime) are timestamped and stored locally with optional Ethernet or RS485 connectivity for integration into centralized MES or LIMS platforms. Audit trails include operator ID, parameter changes, alarm events, and calibration history—fully compliant with electronic record requirements under 21 CFR Part 11 when paired with appropriate access controls and digital signature protocols. Raw data exports are provided in CSV format for third-party statistical analysis (e.g., Weibull lifetime modeling or failure mode correlation).
Applications
- Verification of IP5X (limited dust ingress) and IP6X (complete dust-tightness) ratings per IEC 60529.
- Abrasion resistance assessment of gaskets, seals, and surface coatings under high-velocity sand impact.
- Functional endurance testing of optical sensors, camera modules, and display interfaces exposed to suspended particulates.
- Validation of thermal management systems (e.g., fan filters, heat sink vents) in dusty operating environments.
- Environmental qualification of energy storage systems (ESS), base station cabinets, and rail-mounted electronics per ISO 20653 and EN 50125-3.
FAQ
What standards does the OK-HC-800.00 support out of the box?
It is pre-configured for IEC 60529 (IP5X/IP6X), ISO 20653, MIL-STD-810G/H Method 510.6, and GJB 150.12A. Custom profiles can be added via software configuration.
Is the silica sand used in testing certified for consistency?
Yes—the supplied SiO₂ powder meets ASTM D1498 specifications for particle size distribution (D50 ≈ 100–200 µm) and purity (≥97% crystalline quartz), with CoA provided per batch.
Can the chamber integrate with existing lab automation systems?
It offers Modbus TCP and analog 4–20 mA outputs for PLC-level integration, and optional OPC UA gateway for higher-level SCADA/MES interoperability.
What maintenance intervals are recommended for long-term reliability?
Filter replacement every 200 operational hours; impeller balancing and airflow calibration annually or after 1,000 test cycles—documented in the included maintenance logbook.
Does the system include calibration certification?
Each unit ships with a factory calibration report traceable to national metrology institutes, covering airflow velocity (hot-wire anemometer), concentration (gravimetric filter weighing), and timer accuracy.
