OK LS-804 Rain Test Chamber

Overview

The OK LS-804 Rain Test Chamber is an engineered environmental test system designed to replicate dynamic rain exposure conditions in accordance with international ingress protection (IP) standards—including IEC 60529 (IPX1 through IPX6), ISO 20653, and automotive-specific protocols such as VW PV 1410 and PV 1210. It operates on the principle of controlled hydraulic simulation: precise regulation of water flow rate, droplet size distribution, impact velocity, and directional incidence enables repeatable assessment of enclosure integrity, gasket performance, and sealing reliability under realistic wetting scenarios. Unlike static immersion or drip-only systems, the LS-804 integrates programmable wind-assisted rainfall—mimicking natural convective effects during vehicle motion or outdoor equipment operation—thereby delivering higher fidelity than conventional IP-rated chambers. Its modular architecture supports both standard compliance testing and application-driven validation, making it suitable for R&D laboratories, quality assurance departments, and third-party certification facilities operating under GLP or ISO/IEC 17025 frameworks.

Key Features

• Programmable rainfall intensity from 10 to 20 cm/h, calibrated per ISO 20653 Annex B and IEC 60529 clause 14.2.4
• Adjustable droplet diameter range (0.5–4.5 mm) achieved via precision-engineered nozzle arrays compliant with IPX3/IPX4 spray angle specifications
• Integrated wind tunnel section with variable-speed axial fans (5–18 m/s), enabling combined wind-rain stress profiles required by automotive OEM test specifications
• Temperature-controlled chamber environment (RT + 10°C to 55°C), supporting thermal-hydraulic interaction studies including cold-soak/rain and hot-surface runoff simulations
• Digital PID-controlled timer with resolution of 1 second and maximum duration of 999 minutes, traceable and audit-ready for ISO 9001 and IATF 16949 documentation requirements
• Stainless steel 304 construction with IP65-rated electrical enclosures, corrosion-resistant piping, and quick-drain floor sump system compliant with laboratory safety codes

Sample Compatibility & Compliance

The LS-804 accommodates samples up to 1200 mm × 1000 mm × 1000 mm (W × D × H) on a manually adjustable turntable or fixed mounting plate. It supports both powered and unpowered device-under-test (DUT) configurations, with optional insulated feedthroughs for real-time electrical continuity monitoring during exposure. The chamber meets structural and procedural requirements for IPX1–IPX6 verification per IEC 60529, and its wind-rain coupling capability satisfies VW PV 1410 (spray resistance of lighting units) and PV 1210 (thermal shock + ice-water impact). Optional add-ons include high-pressure spray modules (up to 10 MPa) for IPX9K extension, and chilled-water injection kits for sub-zero thermal shock validation. All calibration points are traceable to NIM (National Institute of Metrology, China) standards; full calibration certificates and uncertainty budgets are provided upon request.

Software & Data Management

The LS-804 is operated via a dedicated touchscreen HMI running embedded Linux-based firmware. Test programs are defined using a hierarchical parameter tree—covering rain mode (static/dynamic), wind vector profile, temperature ramping, and sequence logic—and stored in non-volatile memory with version control. Real-time logging records timestamped values for rainfall rate, wind speed, chamber temperature, and elapsed time at user-defined intervals (1–60 s). Export formats include CSV and XML, compatible with LIMS integration and statistical process control (SPC) platforms. Audit trail functionality complies with FDA 21 CFR Part 11 requirements: all operator actions, parameter changes, and test start/stop events are digitally signed and time-stamped. Remote access via Ethernet enables supervised operation from QA workstations without compromising data integrity.

Applications

• Validation of IP ratings for consumer electronics housings, industrial control panels, and outdoor LED luminaires
• Sealing performance evaluation of automotive lighting assemblies, ECUs, and battery enclosures under combined thermal-wind-rain loading
• Qualification of military-grade connectors and avionics enclosures per MIL-STD-810H Method 506.6 (Rain)
• Reliability screening of renewable energy components—including solar inverters and EV charging stations—against long-term moisture ingress
• Material-level research on hydrophobic coating durability, gasket compression set, and adhesive bond degradation under cyclic wet-dry conditions

FAQ

Does the LS-804 support full IPX5 and IPX6 testing per IEC 60529?
Yes—the chamber includes a calibrated high-flow spray gun assembly with interchangeable nozzles (Φ6.3 mm for IPX5; Φ12.5 mm for IPX6), pressure-regulated to ±2% accuracy, and mounted on a motorized articulating arm to maintain specified standoff distance (2.5–3.0 m) and incident angle.
Can it be used for automotive-specific tests like VW PV 1410?
Yes—its programmable wind-rain synchronization, adjustable spray bar positioning, and validated droplet spectrum meet the spatial and temporal constraints defined in PV 1410 for headlamp and taillamp testing.
Is calibration documentation included with delivery?
Yes—each unit ships with a factory calibration report covering flow rate, wind velocity, temperature uniformity, and timer accuracy, all traceable to national metrological standards.
What utilities are required for installation?
A dedicated 380 V / 50 Hz three-phase supply (16 A minimum), clean deionized or softened water source (≤5 ppm TDS), and floor-mounted gravity drainage capable of handling peak discharge rates ≥200 L/min.
Is remote diagnostics supported?
Yes—Ethernet connectivity enables secure remote firmware updates, log retrieval, and real-time parameter monitoring via authenticated web interface, aligned with Industry 4.0 maintenance protocols.