OK-HC-900.01 Sand and Dust Test Chamber (IEC 60529 / ISO 20653 / MIL-STD-810G Compliant)
| Brand | OK Instruments |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | OEM/ODM Producer |
| Model | OK-HC-900.01 |
| Silica Content | 97–99% SiO₂ |
| Sand Blowing Concentration | 1.1 g/m³ ±0.25 g/m³ to 2.2 g/m³ ±0.5 g/m³ |
| Sand Blowing Velocity | 0–29 m/s |
| Dust Blowing Concentration | 0.1–10.6 g/m³ ±7 g/m³ |
| Dust Blowing Velocity | 8.9 m/s ±1.2 m/s |
Overview
The OK-HC-900.01 Sand and Dust Test Chamber is an engineered environmental simulation system designed to replicate controlled airborne particulate conditions in accordance with internationally recognized ingress protection and durability testing standards. It operates on the principle of forced-air suspension and directional particle delivery, enabling precise replication of both low-velocity dust settling (IP5X) and high-velocity sand abrasion (IP6X) environments. The chamber utilizes a closed-loop airflow architecture with integrated particulate injection, cyclonic recovery, and multi-stage filtration to maintain stable concentration profiles over extended test durations. Its primary engineering objective is to assess the integrity of enclosures, surface resistance to abrasive wear, and functional reliability of electro-mechanical assemblies under defined particulate exposure—critical for automotive lighting modules, outdoor telecom housings, UAV avionics, and industrial control cabinets.
Key Features
- Stainless steel inner chamber constructed from SUS 304 grade stainless steel for corrosion resistance and cleanability.
- Dual-layer silicone-sealed observation door with anti-scratch tempered glass viewport and interlocked safety cutoff.
- Programmable high-efficiency centrifugal blower system delivering adjustable air velocity from 0 to 29 m/s with real-time feedback control.
- Automated volumetric dust dosing mechanism using calibrated vibratory feeders and precision mass-flow-controlled silica powder (97–99% SiO₂).
- Rotating sample turntable (optional, IP6X-compliant configuration) with load capacity up to 50 kg and variable speed control (0.5–5 rpm).
- Integrated HEPA + activated carbon filtration system ensuring >99.97% capture efficiency at 0.3 µm and zero ambient leakage during door opening.
- PLC-based controller with 7-inch TFT touchscreen interface supporting multi-step programmable test profiles, data logging, and USB export.
- Comprehensive safety suite including over-temperature cutoff, motor overload protection, door-open interlock, and emergency stop circuitry.
Sample Compatibility & Compliance
The OK-HC-900.01 supports samples up to 900 mm × 900 mm × 900 mm (W×D×H) and accommodates both powered and unpowered testing configurations. It is fully compliant with IEC 60529 (equivalent to GB/T 4208) for IP5X and IP6X verification, ISO 20653 for road vehicle protection classes, and MIL-STD-810G Method 510.5 (Sand and Dust). Design documentation includes traceable calibration records for airflow sensors (±1.5% FS), concentration monitors (gravimetric reference method), and temperature transducers (Class A Pt100). The system meets GLP-aligned operational requirements, including audit-ready event logs, user access control, and electronic signature support for regulated laboratories.
Software & Data Management
The embedded control software provides full parameter scripting—including time-segmented wind speed ramps, cyclic dust injection intervals, and conditional triggers based on cumulative exposure dose. All operational data—including real-time concentration (g/m³), velocity (m/s), chamber temperature (°C), and run duration—are timestamped and stored internally with 30-day retention. Export formats include CSV and PDF reports compatible with LIMS integration. Optional Ethernet/IP or Modbus TCP interfaces enable remote monitoring and centralized fleet management. Data integrity complies with FDA 21 CFR Part 11 principles via configurable user roles, electronic audit trails, and non-erasable session logs.
Applications
- IP rating validation for consumer electronics enclosures, automotive ECUs, and outdoor LED luminaires.
- Abrasion resistance evaluation of optical coatings, display surfaces, and polymer housing materials under simulated desert conditions.
- Functional endurance testing of connectors, switches, and sensor apertures exposed to long-term dust accumulation.
- Qualification of battery enclosures and power converters for renewable energy installations in arid regions.
- Pre-compliance screening for military-grade equipment requiring MIL-STD-810G or GJB 150.12A certification.
FAQ
What standards does the OK-HC-900.01 explicitly support?
It is validated for IEC 60529 (IP5X/IP6X), ISO 20653, MIL-STD-810G Method 510.5, and GJB 150.12A. Full compliance documentation—including test reports and uncertainty budgets—is provided upon delivery.
Can the chamber operate continuously for 72+ hours without manual intervention?
Yes. The automated dust replenishment system, thermal-stable blower design, and redundant filtration allow uninterrupted operation up to 168 hours under specified concentration and velocity parameters.
Is third-party calibration included with purchase?
Factory calibration certificates for airflow, concentration, and temperature sensors are supplied. NIST-traceable field calibration services are available as an optional add-on.
Does the system support remote diagnostics and firmware updates?
Remote maintenance via secure VPN connection is supported. Firmware updates are delivered through encrypted USB media or authenticated HTTPS upload with version rollback capability.
What maintenance intervals are recommended for optimal performance?
HEPA filters require replacement every 200 operational hours; silica powder sieves every 500 hours; and blower motor lubrication annually. A preventive maintenance checklist is embedded in the controller UI.
