RSJ SMART-R15U Benchtop Integrated Ultrapure Water System

Overview

The RSJ SMART-R15U is a compact, integrated benchtop ultrapure water system engineered for laboratories requiring reliable, on-demand Type I (ultrapure) and Type III (primary) water in a space-efficient footprint. It employs a multi-stage purification architecture—comprising activated carbon prefiltration, dual-stage reverse osmosis (RO), electrodeionization (EDI), and final 0.22 µm membrane filtration with optional UV oxidation—to consistently deliver water meeting or exceeding ASTM D1193-20, ISO 3696:1987, and CLSI EP22-A2 specifications. Its closed-loop, recirculating distribution loop minimizes microbial regrowth, while the integrated pressure tank ensures stable flow without reliance on external booster pumps or complex plumbing infrastructure. Designed for continuous operation under GLP-compliant environments, the SMART-R15U supports both point-of-use dispensing and feed supply to peripheral instrumentation—including glassware washers, autoclaves, and downstream polishing systems—without compromising water quality integrity.

Key Features

• Modular, self-contained design with integrated 20 L or 40 L pressurized storage tanks—no external air compressors or nitrogen blankets required
• Real-time, dual-channel conductivity/resistivity monitoring via high-precision inline sensors with automatic temperature compensation (ATC) to 25 °C
• Full-system diagnostics including RO membrane performance tracking, EDI current efficiency logging, and UV lamp operational hours
• Touchscreen LCD interface with multilingual support (English, German, French, Japanese) and configurable alarm thresholds per parameter
• Low-energy consumption architecture: rated at 100 W nominal power draw during active production; standby mode reduces energy use by >70%
• Tool-free cartridge replacement with RFID-tagged consumables for automated usage tracking and predictive maintenance alerts

Sample Compatibility & Compliance

The SMART-R15U produces water suitable for critical analytical and life science applications where ionic, organic, particulate, and microbial contamination must be rigorously controlled. Its output meets ASTM Type I specifications for resistivity (≥18.2 MΩ·cm), TOC (<10 ppb), and bacterial load (<0.1 CFU/mL), making it appropriate for HPLC mobile phase preparation, cell culture media formulation, molecular biology reagent dilution, and trace elemental analysis (ICP-MS, AAS). The system complies with ISO 9001:2015 manufacturing standards and supports audit-ready documentation for GLP and GMP environments. All wetted materials—including tubing, housings, and sensor diaphragms—are USP Class VI-certified and extractables-tested per USP . Optional data logging enables compliance with FDA 21 CFR Part 11 requirements when paired with validated software configurations.

Software & Data Management

The embedded control firmware provides timestamped, non-erasable event logs covering all critical parameters: feed pressure, RO rejection rate, EDI voltage/current, UV intensity, resistivity, TOC (when equipped), and dispense volume per outlet. Logs are exportable via USB or Ethernet (Modbus TCP) for integration into laboratory information management systems (LIMS). Optional RSJ WaterLink™ PC software enables remote system health monitoring, customizable report generation (daily/weekly/monthly), and electronic signature-enabled calibration verification records. Audit trails include user ID, action type, timestamp, and pre-/post-change values—fully traceable for regulatory inspections.

Applications

• HPLC, UHPLC, and LC-MS mobile phase and blank preparation
• Cell culture media, serum-free formulations, and transfection-grade buffer preparation
• PCR, qRT-PCR, NGS library prep, and CRISPR reagent dilution
• Atomic absorption spectroscopy (AAS), inductively coupled plasma mass spectrometry (ICP-MS), and trace metal analysis
• Feed water for central ultrapure distribution networks or secondary polishing units (e.g., ultrafiltration, additional UV)
• Routine lab tasks: glassware rinsing, autoclave fill, and general equipment feed (washer-disinfectors, steam generators)

FAQ

What feed water quality is required for optimal SMART-R15U performance?

Municipal tap water with turbidity <1 NTU, chlorine <3 ppm, and hardness 0.05 ppm or silica >10 ppm.
Can the system be validated per IQ/OQ protocols?

Yes—RSJ provides factory-verified Installation Qualification (IQ) templates and Operational Qualification (OQ) test scripts aligned with ASTM D1193 and ISO 3696. On-site qualification support is available upon request.
Is TOC monitoring built-in or optional?

TOC measurement is an optional upgrade; base configuration includes resistivity, conductivity, and particle counters. The TOC module uses UV-persulfate oxidation with NDIR detection and is calibrated per USP .
How often do consumables require replacement?

Pre-filters: every 6 months (or 1,500 L); RO membranes: 2–3 years depending on feed water quality; EDI stack: 3–5 years; final 0.22 µm filter: 6–12 months. System firmware calculates remaining service life based on runtime and flow metrics.
Does the SMART-R15U support networked multi-user access?

Yes—via Ethernet connection, up to 8 concurrent users can monitor status, view logs, and trigger manual sanitization cycles using role-based authentication (admin/operator/viewer tiers).