English Product Name

Overview

The OK-LY Series Spray-Type Rain Test Chamber is an engineered environmental simulation system designed to evaluate the ingress protection (IP) rating—specifically IPX3 and IPX4—of electrical enclosures, automotive lighting assemblies, outdoor sensors, and consumer electronics under controlled, repeatable water exposure conditions. Based on the principle of calibrated spray oscillation and rotational sample presentation, it replicates natural rainfall, splashing, and directional water jets encountered during transportation, installation, and field operation. Unlike static drip chambers, this system employs dynamic angular oscillation of stainless-steel spray arms synchronized with programmable turntable rotation, ensuring uniform wetting across complex geometries. Its architecture conforms to the fluid mechanics and test repeatability requirements defined in IEC 60529 and ISO 20653, making it suitable for pre-compliance screening, design validation, and quality assurance in R&D and production QA labs.

Key Features

• Robust dual-layer chamber construction: External housing fabricated from 1.2 mm cold-rolled A3 steel with electrostatic powder coating; interior chamber lined with mirror-finished SUS304 stainless steel for corrosion resistance and long-term dimensional stability.
• High-fidelity spray system: Precision-machined brass and stainless-steel nozzles (0.4 mm orifice, 50 mm spacing), arranged radially on a 375 mm radius oscillating arm driven by a closed-loop stepper motor—enabling accurate angular positioning (±45° to ±180°) and reproducible dwell times per cycle.
• Intelligent water management: Integrated German high-pressure pump (rated ≥10 bar), inline dual-stage filtration (5 µm sediment + 1 µm particulate), and automatic compressed-air purging post-test to prevent nozzle clogging and mineral residue accumulation.
• Programmable test execution: Optional full-color TFT touchscreen controller (developed in-house) supporting multi-step profiles—including variable oscillation angle, dwell time, turntable speed (1 rpm standard, 0–5 rpm adjustable), and spray duration—with real-time monitoring of water flow rate (via calibrated digital flow meter) and system pressure.
• Human-centered ergonomics: Full-height tempered safety glass viewing window with anti-fog coating; low-noise (<65 dB(A)) operation; energy-efficient frequency-controlled pump drive and insulated chamber walls (polyurethane foam + fiberglass composite).

Sample Compatibility & Compliance

The OK-LY chamber accommodates samples up to 1000 mm × 1000 mm × 1000 mm (L×W×H), with optional custom configurations available for oversized automotive headlamps or industrial control cabinets. All wetted components—including spray manifolds, turntable deck (PVC-hardened surface), and water reservoir—are constructed from non-reactive materials (SUS304, brass, or EPDM-sealed polymers) to ensure chemical compatibility with deionized, tap, or synthetic rainwater simulants. The system is fully traceable to international test standards including IEC 60529 (IPX3/IPX4), ISO 20653 (road vehicle ingress protection), MIL-STD-810G Method 506.6 (rain), and GB/T 4208 (Chinese national IP code standard). It supports GLP-aligned documentation through timestamped test logs, operator ID tagging, and audit-ready parameter export (CSV/USB).

Software & Data Management

The standard controller features a programmable logic interface compliant with IEC 61131-3, while the advanced touchscreen variant provides intuitive drag-and-drop profile editing, real-time graphical display of spray cycles and turntable position, and password-protected user roles (Operator, Engineer, Administrator). All test sessions generate immutable records containing start/stop timestamps, setpoints, actual measured flow rates, deviation alerts, and system fault codes. Data export supports CSV format for integration into LIMS or QMS platforms. For regulated environments, optional 21 CFR Part 11 compliance packages are available—including electronic signatures, audit trails, and data integrity validation protocols.

Applications

This chamber is routinely deployed in Tier-1 automotive supplier labs for validating headlamp and sensor housing IP ratings prior to OEM submission; in electronics manufacturing for verifying waterproofing of handheld devices, IoT gateways, and outdoor power supplies; and in defense/aerospace QA for assessing enclosure resilience of avionics housings and ground support equipment. It also serves academic research groups studying hydrophobic coating durability, sealant performance under cyclic thermal-hygric stress, and failure modes induced by capillary intrusion at gasket interfaces.

FAQ

What IP ratings can be validated using this chamber?

It is certified for IPX3 (oscillating shower) and IPX4 (splashing water from any direction) per IEC 60529 and ISO 20653.

Is the water temperature controllable?

Standard configuration includes ambient-temperature spray only; optional heated water module (up to 40 °C) is available upon request.

Can test parameters be logged and exported for audit purposes?

Yes—each test generates a timestamped log file with all setpoints, measured values, and system status flags; export is supported via USB or RS-485.

What maintenance is required to ensure long-term accuracy?

Monthly nozzle inspection and cleaning, quarterly calibration of flow meter and pressure transducer, and annual verification of oscillation angle repeatability using optical alignment fixtures.

Is customization available for non-standard sample dimensions or mounting fixtures?

Yes—custom turntables, fixture brackets, and chamber volume modifications are offered with engineering review and performance validation.