HHitech EDI Touch-Q/S Series Ultra-Pure Water System
| Brand | HHitech |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | EDI Touch-Q10 / EDI Touch-Q10UT / EDI Touch-S10 / EDI Touch-S10UF / EDI Touch-S10UV / EDI Touch-S10UVF |
| Pure Water Grade | ASTM Type II (RO/EDI), ASTM Type I (UP) |
| Resistivity | >5 MΩ·cm (Type II), 18.2 MΩ·cm @ 25°C (Type I) |
| Heavy Metals & Soluble Silica | <0.01 ppb |
| Total Organic Carbon (TOC) | <3 ppb (UV/UVF models), <10 ppb (UF model), <30 ppb (Q-series) |
| Microbial Count | <0.01 CFU/mL |
| Endotoxin | <0.001 EU/mL (UF/UVF models) |
| Particles (>0.1 µm) | <1/mL |
| RNase | <1 pg/mL (UVF model) |
| DNase | <5 pg/mL (UVF model) |
| Flow Rate | 10–15 L/hr |
| Daily Capacity | Up to 240 L |
Overview
The HHitech EDI Touch-Q/S Series Ultra-Pure Water System is an integrated, multi-stage laboratory water purification platform engineered for precision and regulatory compliance in analytical, life science, and clinical research environments. Designed to convert municipal tap water into three distinct quality grades—reverse osmosis (RO) water, electrodeionization (EDI) purified water (ASTM Type II), and ultrapure water (ASTM Type I)—the system employs a modular architecture combining proven pretreatment, high-rejection RO membranes, continuous Ionpure® EDI modules, and optional ultraviolet (UV), ultrafiltration (UF), and dual-wavelength (185/254 nm) photolysis stages. Its core purification principle relies on electrodialysis with ion-exchange membranes and electric current to continuously remove ions without chemical regeneration—ensuring stable resistivity ≥5 MΩ·cm (Type II) and up to 18.2 MΩ·cm at 25°C (Type I), with TOC consistently maintained below 3 ppb in UV-equipped configurations. The system meets or exceeds the stringent requirements of GB/T 6682–2008, GB/T 33087–2016, ASTM D1193, CLSI GP17-A4, EP 2.2.44, USP , and CAP accreditation standards for reagent-grade water.
Key Features
- Ionpure® EDI technology enables continuous, chemical-free production of Type II water—eliminating DI cartridge replacement, acid/base regeneration, and associated waste disposal costs.
- 5-inch full-color capacitive touchscreen interface with animated menu navigation supports intuitive operation, real-time system diagnostics, and multilingual UI (English default).
- Triple-point water quality monitoring: simultaneous real-time display of conductivity/resistivity for feed water, RO permeate, and final UP/EDI output—no manual sampling required.
- Dual-mode dispensing: programmable volume delivery (10–999,999 mL) and resistivity-triggered dispensing (0.0–18.25 MΩ·cm), enabling precise, application-specific water delivery.
- Comprehensive consumables management: configurable lifetime settings for PP, KDF, AC, RO, DI, UP, UV, UF, and TF modules; usage tracking with auto-alerts for scheduled replacement.
- NSF-certified fluid path components—including PES 0.45 + 0.1 µm terminal filters, DOW FilmTec™ RO membranes, and Dow nuclear-grade mixed-bed resin in a field-serviceable 4-cartridge UP column—minimize organic leaching and ensure long-term TOC stability.
- Automated RO membrane antiscalant flush cycle (user-configurable interval/duration) and manual forced flush function extend membrane service life and maintain consistent salt rejection (>99.9%).
- Full-system sanitization protocols: selectable “recirculation disinfection”, “point-of-use disinfection”, “tank refilling”, and “manual drain” routines—validated for microbial control per ISO 14644-1 Class 5 cleanroom-compatible operation.
Sample Compatibility & Compliance
The EDI Touch-S series (particularly S10UF and S10UVF variants) delivers endotoxin-free (<0.001 EU/mL), nuclease-free (RNase <1 pg/mL; DNase <5 pg/mL), and particle-controlled (0.1 µm) water suitable for sensitive applications including cell culture, IVF media preparation, HPLC mobile phase generation, and molecular biology workflows requiring low bioburden and minimal enzymatic interference. All models comply with GLP/GMP data integrity requirements: USB and SD card logging captures 12 months of timestamped operational data—including flow rates, resistivity trends, alarm events, consumables status, and user actions—with export capability for audit-ready reporting. Dual-level password protection (factory + user-defined) secures configuration changes, time/date settings, and system calibration parameters in accordance with FDA 21 CFR Part 11 principles.
Software & Data Management
Embedded firmware provides native GLP-compliant data handling: all critical events—including water quality excursions, maintenance alerts, power interruptions, and user logins—are time-stamped and stored locally. Data export via USB port supports CSV-formatted files compatible with LIMS integration and internal QA review. The system records dispense logs (volume, time, resistivity at point of use), consumables consumption history (hours used, remaining life %), and historical alarm summaries—including severity level, duration, and resolution status. Optional remote monitoring via Ethernet-enabled gateway (not included) allows centralized fleet management across multi-instrument lab environments.
Applications
- HPLC, LC-MS, and ICP-MS mobile phase and blank preparation where low TOC and metal ion contamination are critical.
- Cell culture, stem cell expansion, and in vitro fertilization requiring endotoxin- and nuclease-free water.
- Molecular biology applications including PCR, qRT-PCR, NGS library prep, and CRISPR-based editing workflows.
- Clinical diagnostics instrumentation (e.g., automated immunoassay analyzers) demanding ISO 15189-aligned water quality traceability.
- Pharmaceutical R&D and QC labs performing dissolution testing, buffer preparation, and reference standard dilution under USP guidance.
- Environmental and food testing labs requiring ASTM Type I water for trace-metal analysis by GF-AAS or ICP-OES.
FAQ
What water quality standards does the EDI Touch-S series meet?
It complies with ASTM Type I (18.2 MΩ·cm @ 25°C, TOC <3 ppb, <0.001 EU/mL, 0.1 µm), USP , EP 2.2.44, and CLSI GP17-A4 specifications.
Is the system suitable for nuclease-sensitive applications?
Yes—the S10UVF configuration includes dual-wavelength UV (185/254 nm) and MWCO 5000 Da UF, achieving RNase <1 pg/mL and DNase <5 pg/mL per manufacturer validation reports.
How often must consumables be replaced?
Pre-filters (PP/KDF/AC) typically last 6–12 months depending on feed water hardness; RO membranes average 2–3 years; UP cartridges require replacement every 6–12 months based on usage and TOC load.
Can the system be integrated into a laboratory information management system (LIMS)?
Raw data export via USB in CSV format enables manual import into LIMS; optional Ethernet gateway support allows scheduled automated data push to networked servers.
Does the system support audit trails for regulatory inspections?
Yes—full event logging with timestamps, user ID tagging, and immutable storage satisfies GLP, GMP, and ISO/IEC 17025 documentation requirements.
