OK LS-812 Advanced Rain Test Chamber

Overview

The OK LS-812 Advanced Rain Test Chamber is an engineered environmental test system designed to replicate controlled rainfall conditions for evaluating the ingress protection (IP) performance of enclosures and electronic assemblies in accordance with IEC 60529, GB 4208, ISO 20653, and MIL-STD-810G/H Method 506. It implements a multi-mode hydraulic simulation architecture—integrating oscillating pipe, nozzle-based spray, and high-pressure jet configurations—to deliver precise, repeatable exposure across IPX3 through IPX6 test classes. Unlike single-function rain simulators, the LS-812 employs a unified chamber platform with modular fluid delivery subsystems, enabling standardized validation of sealing integrity, material resistance to hydrostatic stress, and functional continuity under dynamic wetting conditions. Its temperature-controlled environment (RT+10°C to 55°C) supports combined thermal-rain testing protocols required for automotive ECUs, outdoor lighting fixtures, telecom cabinets, and consumer appliances.

Key Features

• Multi-standard compliance: Configurable operation modes for IPX3 (oscillating pipe, ±60° arc), IPX4 (full-surface oscillation or calibrated spray head), IPX5 (6.3 mm nozzle, 12.5 L/min at 3 m), and IPX6 (12.5 mm nozzle, 100 L/min at 3 m)
• Adjustable rainfall intensity (10–20 cm/h) and droplet size distribution (0.5–4.5 mm) via precision flow regulation and calibrated orifice arrays
• Integrated wind simulation (5–18 m/s) using axial blower modules to reproduce crosswind-driven rain impact angles and kinetic energy profiles
• Programmable test duration (0–999 minutes) with cycle sequencing, pause intervals, and automatic water recirculation with 0.45 µm filtration
• Stainless steel (SUS304) interior chamber with reinforced viewing window, LED lighting, and corrosion-resistant plumbing components
• PLC-based control system with 7-inch industrial touchscreen HMI, real-time parameter logging, and password-protected test program storage
• Safety interlocks including leak detection, low-water cutoff, overpressure shutdown, and door-open inhibition

Sample Compatibility & Compliance

The LS-812 accommodates samples up to Ø600 mm diameter on a motorized turntable (1–5 rpm, max. load 100 kg), ensuring uniform exposure during oscillating and spray tests. Its chamber dimensions support standard IP test geometries—including vertical mounting fixtures for upright electronics and tilt-angle adapters for angled surface evaluation. The system meets full traceability requirements for GLP and GMP environments: all test parameters are timestamped and stored with audit trail capability. Calibration certificates for flow meters, pressure transducers, and temperature sensors comply with ISO/IEC 17025 guidelines. Validation documentation aligns with FDA 21 CFR Part 11 for electronic records and signatures where applicable.

Software & Data Management

The embedded control firmware supports up to 99 user-defined test profiles, each configurable for sequence logic (e.g., pre-conditioning heat soak → wind-assisted rain → post-test functional check). Data export is available in CSV format for integration into LIMS or quality management systems. Optional Ethernet/IP or Modbus TCP interfaces enable remote monitoring and centralized fleet management across multiple chambers. All operational events—including pump start/stop, valve actuation, alarm triggers, and manual overrides—are logged with millisecond resolution and retained for ≥30 days.

Applications

• Automotive: Validation of ADAS sensor housings, battery enclosures, and infotainment modules per VW 80101, GMW 3172, and Ford ES-XW7T-1A278-AC
• Consumer Electronics: IP rating verification for smartphones, wearables, and smart home devices per IEC/EN 60529 and UL 60950-1
• Industrial Equipment: Waterproof integrity testing of PLC cabinets, motor drives, and outdoor HMIs under IEC 60529 and NEMA 250
• Lighting: Photometric stability and seal degradation assessment for LED streetlights and architectural fixtures per IEC 60598-1
• Renewable Energy: Enclosure performance evaluation for solar inverters and EV charging stations exposed to coastal or monsoon climates

FAQ

Does the LS-812 support IPX7 or IPX9K testing?
No—the LS-812 is specifically engineered for IPX3 to IPX6 rain exposure. IPX7 (immersion) and IPX9K (high-temperature high-pressure spray) require separate mechanical and thermal subsystems not integrated into this model.
What water quality specifications are required for reliable operation?
Deionized or softened water with conductivity ≤10 µS/cm and suspended solids <1 ppm is mandatory to prevent nozzle clogging and scaling. A dedicated inline filtration unit (0.45 µm) is included as standard.
Can test parameters be exported for regulatory submission?
Yes—CSV-formatted logs include time-stamped flow rate, pressure, temperature, wind speed, and system status flags, fully compliant with ISO 17025 reporting requirements.
Is third-party calibration support available?
OK Instruments provides factory calibration services traceable to NIST standards; on-site recalibration and IQ/OQ documentation packages are available upon request.
What electrical supply is required for full IPX5/IPX6 operation?
Three-phase 380 V ±10%, 50 Hz, 16 A minimum is required to power the high-pressure pump and blower system simultaneously.