RSJ RODI IoT-Enabled Modular Ultra-Pure Water System
| Brand | RSJ |
|---|---|
| Origin | Fujian, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | RODI |
| Quotation | Available Upon Request |
| Purified Water Grade | Type I (ASTM D1193-2006 / GB 6682-2008 Grade 1) |
| Resistivity | 18.2 MΩ·cm @ 25 °C |
| Heavy Metals & Soluble Silica | <0.01 ppb |
| Total Organic Carbon (TOC) | <3 ppb |
| Microbial Count | <0.01 CFU/mL |
| Endotoxins | <0.001 EU/mL |
| Particles (>0.2 µm) | <1 particle/mL |
| UV Lamps | Dual-wavelength (185 nm + 254 nm) |
| Conductivity Monitoring Channels | 4 independent real-time sensors |
| TOC Analyzer Range | 0.1–999 ppb |
| Flow Rate | Adjustable from dropwise to 2 L/min (4-step precision control) |
| Storage Tank Capacity | 40 L |
| Power Supply | AC 100–240 V, 50 Hz |
| Power Consumption | 100 W |
| Dimensions (Pre-treatment + Tank Unit) | 339 × 410 × 904 mm (W×D×H) |
| (RODI Main Unit) | 374 × 508 × 538 mm |
| (Optional Remote Dispenser) | 200 × 190 × 618 mm |
| Net Weight | 15 kg (Pre-treatment unit), 24 kg (Main unit), 6 kg (Remote dispenser) |
Overview
The RSJ RODI IoT-Enabled Modular Ultra-Pure Water System is a fully integrated, laboratory-grade water purification platform engineered for consistent production of Type I ultrapure water per ASTM D1193-2006, GB/T 11446.1-2013, GB/T 33087-2016, and GB/T 6682-2008 standards. It employs a multi-stage purification architecture comprising pre-filtration, reverse osmosis (RO), electrodeionization (EDI), dual-wavelength UV photooxidation (185/254 nm), ultrafiltration, and final point-of-use polishing. The system continuously monitors resistivity, conductivity at four strategic process points, and total organic carbon (TOC) in real time—enabling dynamic assessment of purification efficacy across all stages. Its closed-loop design minimizes atmospheric recontamination, while the low-dead-volume fluid path ensures rapid equilibration and high reproducibility of ultrapure output.
Key Features
- IoT-Ready Architecture: Dual-mode connectivity (Wi-Fi + 4G) enables secure remote access via cloud-based platform for live status monitoring, predictive maintenance alerts, fault diagnostics, usage analytics, and automated compliance reporting.
- Multi-Parameter Real-Time Monitoring: Four independent conductivity sensors track feed, RO permeate, EDI effluent, and final ultrapure water; integrated TOC analyzer with 0.1–999 ppb range provides continuous oxidation efficiency verification.
- Smart Cartridge Management: RFID-enabled chip technology records cartridge model, batch number, installation date, and service life; system validates correct installation sequence and flags misalignment or expired consumables.
- Full Modularity & DIY Maintenance: Tool-free, snap-in cartridge replacement; standardized interfaces allow users to perform routine servicing—including pre-filter, RO membrane, EDI stack, and UF cartridge swaps—without OEM technician support.
- Flexible Dispensing Options: Motorized height- and angle-adjustable arm; up to three remote dispensing stations; four-step flow rate selection (dropwise to 2 L/min); foot pedal, volumetric, quality-controlled, and manual faucet modes—all configurable per user profile.
- Intuitive HMI Interface: 4.3-inch color touchscreen with bilingual (English/Chinese) GUI; hierarchical PIN-protected access levels (Operator, Technician, Administrator, Auditor); contextual help keys and status-indicating tri-color LED band (green/amber/red).
- Comprehensive Safety Framework: Low-voltage DC control circuitry; dual-level leak detection with automatic shutdown; overtemperature and overpressure cut-off; cartridge position verification; dry-run protection for pump and UV lamp.
Sample Compatibility & Compliance
The RODI system delivers water meeting stringent specifications required for trace-level analytical applications and sensitive biological workflows. Final ultrapure water complies with ISO 3696:1987 Class 1, CLSI EP23-A guidelines for clinical laboratory water, and supports GLP/GMP-aligned documentation through audit-trail-enabled software logs. All wetted materials conform to USP Class VI biocompatibility standards. Endotoxin and nucleases (DNase/RNase) removal is validated using certified ultrafiltration modules, and microbial retention is verified per ISO 8573-7:2019 for compressed air purity—adapted for liquid-phase integrity testing. The system supports FDA 21 CFR Part 11-compliant electronic signatures when deployed with optional RMMS (Remote Multi-User Management System) and encrypted cloud logging.
Software & Data Management
The embedded firmware supports local data storage (≥12 months of timestamped conductivity, TOC, pressure, temperature, and flow metrics) and synchronized cloud upload via TLS 1.2–secured API endpoints. The web-based portal provides customizable dashboards, automated PDF report generation (daily/weekly/monthly), alarm history with root-cause tagging, and calibration certificate tracking. RMMS integration enables RFID/NFC card-based user authentication, multi-tier water grade assignment (e.g., pure vs. ultrapure), granular consumption metering, and account-based billing. All system events—including login attempts, parameter changes, and cartridge replacements—are logged with immutable timestamps and operator IDs to satisfy internal QA audits and external regulatory inspections.
Applications
The RODI system serves as a primary water source for high-sensitivity instrumentation including HPLC, UHPLC, LC-MS, ICP-OES, ICP-MS, AAS, and GF-AAS. Its low TOC and endotoxin levels make it suitable for mammalian cell culture media preparation, CRISPR/Cas9 editing workflows, qPCR, RNA-seq library construction, and electrophoresis buffer formulation. In clinical labs, it supplies water for immunoassay analyzers, hematology systems, and automated tissue processors. For industrial QC, it supports dissolution testing, tablet coating validation, and cleaning verification per USP . The integrated pure water loop (≤5 µS/cm) simultaneously feeds autoclaves, glassware washers, and environmental chambers without cross-contamination risk.
FAQ
What standards does the final ultrapure water meet?
It conforms to ASTM D1193-2006 Type I, GB/T 6682-2008 Grade 1, ISO 3696:1987 Class 1, and CLSI EP23-A requirements for critical laboratory applications.
Can the system be validated for GMP environments?
Yes—when equipped with RMMS and audit-trail software, it supports IQ/OQ/PQ documentation, electronic signature compliance (21 CFR Part 11), and periodic performance verification per ISO/IEC 17025.
Is remote troubleshooting supported?
The IoT module enables secure remote diagnostics by authorized service engineers, including real-time sensor readouts, error code interpretation, and firmware update deployment.
How often must consumables be replaced?
Replacement intervals are dynamically calculated based on actual usage, inlet water quality, and sensor drift trends; typical lifespans are 6–12 months for pre-filters, 2–3 years for RO membranes, and 18–24 months for EDI stacks under standard municipal feed conditions.
Does the system support third-party data integration?
Yes—RESTful API and Modbus TCP protocols allow seamless integration with LIMS, MES, and building management systems for centralized utility monitoring and predictive resource planning.
