HHitech Edi-Q Ultra-Pure Water System (Municipal Tap Water Feed)

Overview

The HHitech Edi-Q Ultra-Pure Water System is a fully integrated, modular laboratory water purification platform engineered for continuous, high-reliability production of ASTM Type II and ISO 3696 Grade 2 purified water from municipal tap feed. It employs a multi-stage purification architecture combining pretreatment (KDF-activated carbon), reverse osmosis (RO), electrodeionization (EDI), dual-wavelength ultraviolet photooxidation (185/254 nm), ultrafiltration (5,000 Da MWCO), and terminal sterile filtration (0.45 + 0.1 µm PES). Unlike conventional distillation or single-stage deionization systems, the Edi-Q leverages Ionpure® EDI modules to achieve stable resistivity >5 MΩ·cm at 25 °C without chemical regeneration—ensuring consistent water quality while minimizing operational downtime and consumable waste. Designed for 24/7 operation in QC labs, clinical diagnostics, and pharmaceutical R&D environments, it delivers up to 240 L/day of purified water meeting or exceeding critical regulatory benchmarks including USP , EP 2.2.43, JP XVII, CLSI C3-A4, ASTM D1193 Table I (Type II), and ISO 3696:1987 (Grade 2).

Key Features

• Modular, field-serviceable architecture with independent PF/KDF/AC, RO, EDI, UV, UF, and terminal filtration stages—enabling rapid component replacement without system shutdown
• Intelligent microprocessor control with backlit 240×128 LCD interface and real-time animated process visualization
• Triple-point online water quality monitoring: feedwater, RO permeate, and final EDI product water—with configurable alarm thresholds for resistivity, TOC, and endotoxin
• Automated RO membrane antiscalant flush cycle and pressure-controlled feed regulation to extend membrane service life beyond 3 years under typical municipal input conditions (TDS <200 ppm)
• Dual operational modes (“Work” and “Standby”) with programmable scheduling to align water production with lab occupancy patterns
• NSF-certified fluid path components—including tubing, fittings, and storage tank linings—to ensure material compatibility and leachate control
• GLP-compliant data integrity: password-protected configuration (dual-level factory/user access), audit-trail-enabled parameter logging, and optional RS232/USB connectivity for annual traceable record retention
• Predefined consumables lifecycle tracking for prefilter, RO membrane, UV lamp, and polishing cartridge—with remaining service time displayed and automatic replacement alerts

Sample Compatibility & Compliance

The Edi-Q is validated for use with municipal tap water sources exhibiting TDS ≤200 ppm, temperature 5–45 °C, and inlet pressure 1.0–4.0 kgf/cm². Its output consistently satisfies stringent pharmacopeial requirements for purified water used in analytical reagent preparation, buffer formulation, HPLC mobile phase dilution, and cell culture media supplementation. The system conforms to ISO/IEC 17025 documentation practices for calibration traceability and supports FDA 21 CFR Part 11 readiness when paired with compliant data management software. All wetted materials—including Dow FilmTec™ RO membranes, Ionpure® EDI stacks, and imported PES terminal filters—carry full manufacturer certifications for biocompatibility and low extractables.

Software & Data Management

The embedded controller records timestamped resistivity, TOC, and pressure metrics across all purification stages. With optional USB or RS232 interface, users can export full-year datasets in CSV format for trend analysis and internal QA review. Alarm events—including low feed pressure, high TOC excursion, or endotoxin breakthrough—are logged with timestamps and severity codes. Password protection (factory + user tiers) prevents unauthorized modification of setpoints or calibration offsets. Firmware updates are performed via secure USB drive, maintaining version control and revision history per GLP Annex 11 guidelines.

Applications

• Preparation of HPLC-grade solvents and standards in analytical chemistry laboratories
• Formulation of electrophoresis buffers, ELISA wash solutions, and PCR master mixes
• Feed water for downstream ultrapure systems (e.g., Type I water generators)
• Media preparation for mammalian cell culture, IVF procedures, and stem cell expansion
• Calibration and verification of conductivity/TDS meters and TOC analyzers
• General-purpose rinsing and glassware cleaning where particulate-free, low-endotoxin water is required

FAQ

What feed water specifications are required for optimal Edi-Q performance?
Municipal tap water with TDS ≤200 ppm, temperature between 5–45 °C, and inlet pressure of 1.0–4.0 kgf/cm² is recommended. For higher TDS inputs, an external softener is advised to prevent premature RO scaling.
Does the system support integration with building automation or central lab water networks?
Yes—the Edi-Q features dry-contact relay outputs and analog 4–20 mA signals for remote status monitoring and flow-based demand control in centralized utility infrastructures.
How frequently must consumables be replaced under standard operating conditions?
KDF/carbon prefilter: ~12 months; RO membrane: ≥36 months; UV lamp: 9,000 hours; EDI stack: ≥5 years; terminal filter: 6–12 months depending on usage volume and ambient air quality.
Is the system compatible with stainless-steel or polyethylene storage tanks?
It supports both NSF-certified PE/PP tanks (standard) and optional 316L stainless-steel vessels with sanitary tri-clamp connections for GMP-aligned installations.
Can the Edi-Q be validated per IQ/OQ/PQ protocols?
Yes—comprehensive validation documentation packages (including URS, FAT/SAT reports, and test scripts aligned with ASTM D1193 and ISO 3696) are available upon request for regulated environments.