APKJ AP-LY IPX4 Rain Test Chamber

Overview

The APKJ AP-LY IPX4 Rain Test Chamber is an engineered environmental test system designed to evaluate the ingress protection performance of electrical and electronic enclosures under controlled simulated rainfall conditions. It operates in strict accordance with the international standard IEC 60529 (equivalent to EN 60529 and GB/T 4208), specifically fulfilling the test requirements for IPX4 — “protection against water splashed from any direction.” The chamber employs a precisely calibrated oscillating spray arm mechanism combined with a motorized rotating turntable to replicate realistic, multi-angle water exposure scenarios including dripping, splashing, and light spraying. Its modular architecture enables consistent, repeatable application of defined water volume, pressure, and impact geometry—critical for validating enclosure integrity during product development, quality assurance, and regulatory compliance testing.

Key Features

• Programmable oscillation angles (45°, 90°, 180°, 350°) and frequency (25 cycles/min) for precise simulation of directional water ingress
• Adjustable turntable rotation speed (1–10 rpm) to ensure uniform exposure across all sample surfaces
• Stainless steel construction: interior chamber fabricated from corrosion-resistant SUS304; exterior from durable SUS201 or powder-coated structural steel
• Tempered safety glass viewing window enabling real-time visual monitoring without interrupting test conditions
• Self-contained water recirculation system with integrated filtration and level-sensing circuitry
• Custom-built touchscreen control interface (Xinjie HMI) supporting intuitive parameter entry, test scheduling, and real-time status feedback
• Comprehensive safety suite: overcurrent/short-circuit protection, earth leakage detection, and automatic low-water-level shutdown with audible alarm
• Modular nozzle array with φ0.4 mm precision-drilled orifices spaced at 50 mm intervals—conforming to IPX4 nozzle layout specifications

Sample Compatibility & Compliance

The AP-LY accommodates a wide range of sample geometries up to 800 mm in diameter and height, mounted on its centrally located, height-adjustable turntable. Its standardized 200 mm nozzle-to-sample distance ensures reproducible impact energy distribution across test specimens. The system meets the mechanical and procedural requirements of multiple national and international standards, including GB/T 2423.38–1990 (equivalent to IEC 60068-2-18), GB 4706.32–2004 (household appliance safety), and IEC 60529 Annex B. While certified for IPX4, the chamber’s adjustable pressure (80–100 kPa dynamic, 400 kPa static supply), flow rate (0.07 L/min ±5% per nozzle), and programmable timing (1–999,999 minutes) allow method adaptation for internal validation protocols aligned with ISO/IEC 17025-accredited laboratories.

Software & Data Management

The embedded control system features non-volatile memory for storing up to 100 user-defined test profiles, each containing independent settings for oscillation angle, turntable speed, duration, and start delay. All operational events—including power-on, cycle initiation, alarm triggers, and manual intervention—are timestamped and logged locally. Though the current firmware does not support network connectivity or remote access, the system architecture is compatible with external data acquisition via RS-485 or analog output signals (0–10 V / 4–20 mA) for integration into centralized laboratory information management systems (LIMS). Audit trail functionality satisfies basic GLP documentation requirements, and test logs can be exported manually via USB for inclusion in regulatory submissions or internal QA records.

Applications

• Validation of IP-rated enclosures for industrial control panels, outdoor lighting fixtures, and HVAC components
• Pre-compliance screening of consumer electronics housings prior to third-party certification
• Reliability assessment of gasketed junction boxes, sensor housings, and battery enclosures in automotive and marine environments
• Design verification of medical device casings subject to routine cleaning or incidental splash exposure
• Quality control testing in manufacturing lines producing household appliances, power tools, and garden equipment
• Supporting failure analysis investigations where moisture-induced corrosion or insulation breakdown is suspected

FAQ

What IP ratings can the AP-LY chamber test?
The AP-LY is configured and validated for IPX4 testing per IEC 60529. With appropriate nozzle configuration and calibration, it may support method adaptations for IPX3 (oscillating tube) but is not rated for IPX5/IPX6 (jet-based) or IPX7/IPX8 (immersion) testing.

Is the water system closed-loop or open-loop?
It operates as a semi-closed recirculating system: filtered rainwater is collected in a reservoir beneath the chamber, repressurized, and reused—reducing consumption while maintaining consistent hydraulic performance.

Can test parameters be locked to prevent unauthorized changes?
Yes. The touchscreen interface supports password-protected operator levels: “View Only,” “Operator,” and “Engineer,” enabling role-based access control for parameter modification and profile editing.

Does the system include calibration documentation?
APKJ provides a factory calibration certificate covering nozzle flow rate, pressure transducer accuracy, and turntable rotational speed—traceable to national metrology standards. Annual recalibration is recommended for continued compliance confidence.

What maintenance is required between tests?
Daily inspection of nozzle orifices for clogging, weekly cleaning of the water reservoir and filter mesh, and quarterly verification of seal integrity on the viewing window and door gasket are advised per the maintenance schedule included in the technical manual.