EDI Module, Deepflow CYTTEDI10, 10 L/h Ultra-Pure Water Production Capacity
| Brand | Deepflow |
|---|---|
| Origin | Shanghai, China |
| Model | CYTTEDI10 |
| Flow Rate | 10 L/h |
| Application | Integrated Electrodeionization Module for Ultrapure Water Systems |
| Regulatory Context | Designed for compliance with ASTM D1193 Type I, ISO 3696 Grade 1, and CLSI EP21-A2 water purity specifications |
| Electrical Interface | 24 V DC input, IP54-rated enclosure |
| Dimensions (L×W×H) | 320 × 180 × 120 mm |
| Weight | 4.2 kg |
| Material Contact | FDA-compliant PEEK and PVDF wetted parts |
| Operating Temperature Range | 5–35 °C |
| Inlet Water Requirement | RO permeate ≤ 10 µS/cm, < 0.1 ppm TOC, < 0.05 ppm silica |
Overview
The Deepflow CYTTEDI10 is a compact, self-contained electrodeionization (EDI) module engineered for continuous, chemical-free polishing of reverse osmosis (RO) permeate into Type I ultrapure water (UPW). Unlike batch-mode deionization or mixed-bed resin systems, this EDI unit employs a fixed-bed stack of ion-exchange membranes and mixed-bed resins under direct current (DC) electric field to drive continuous ion removal, water splitting, and in-situ resin regeneration. It delivers stable resistivity ≥ 18.2 MΩ·cm at 25 °C, total organic carbon (TOC) < 5 ppb, and silica < 0.1 ppb—meeting the most stringent specifications for analytical chemistry, molecular biology, HPLC mobile phase preparation, and semiconductor rinse applications. The module is designed for seamless integration into existing or new ultrapure water systems as a final polishing stage, eliminating the need for periodic resin replacement and associated downtime.
Key Features
- Continuous ion removal without chemical regeneration: Eliminates acid/base handling, waste neutralization, and resin disposal risks.
- Integrated DC power supply with current regulation and fault monitoring: Ensures stable operation across variable feed conductivity (2–10 µS/cm) and flow rates (8–12 L/h).
- FDA-compliant wetted materials: PEEK end caps, PVDF housing, and sulfonated/quinone-type ion-exchange membranes ensure leachables compliance per USP and ISO 15195.
- Modular footprint and standardized 1/4″ compression fittings: Enables rapid installation in skid-mounted or cabinet-integrated UPW systems.
- Low energy consumption: Typical power draw < 45 W at nominal 10 L/h output, optimized for laboratory-scale sustainability targets.
- Real-time performance diagnostics: Built-in inlet/outlet conductivity sensors and current feedback enable predictive maintenance logging via external SCADA or PLC interfaces.
Sample Compatibility & Compliance
The CYTTEDI10 is validated for use with RO permeate meeting ASTM D5116 Class I feedwater criteria: maximum hardness < 0.5 ppm as CaCO₃, free chlorine < 0.05 ppm, and suspended solids < 1 mg/L. It is not intended for direct connection to municipal or hard feed water. The module complies with ISO 3696:2023 Grade 1 water quality requirements when operated within specified inlet conditions and maintained per Deepflow’s documented procedures. Its design supports GLP/GMP environments through traceable calibration records (conductivity sensors NIST-traceable), material certifications (USP Class VI, EC 1935/2004), and compatibility with audit-ready water management systems adhering to FDA 21 CFR Part 11 electronic record controls.
Software & Data Management
While the CYTTEDI10 operates as a standalone hardware module, its analog conductivity outputs (0–5 V or 4–20 mA) and digital status signals (alarm relay, current OK) are compatible with industry-standard supervisory control systems (e.g., Siemens Desigo, Schneider EcoStruxure, LabVantage LIMS). Deepflow provides optional RS-485 Modbus RTU firmware for integration into centralized water quality dashboards. All operational logs—including cumulative runtime, average current draw, and conductivity delta across the stack—are exportable in CSV format for trend analysis and annual validation reports required under ISO/IEC 17025 accreditation.
Applications
- HPLC and UHPLC mobile phase preparation where low ionic background and sub-ppb silica are critical to column longevity and baseline stability.
- Cell culture media formulation requiring endotoxin-free, low-metal water per USP and Ph. Eur. 2.6.14 specifications.
- ICP-MS and GF-AAS sample dilution and blank preparation, where Na⁺, K⁺, and Ca²⁺ contamination must remain below instrument detection limits.
- Pharmaceutical QC laboratories performing dissolution testing per USP , where water purity directly impacts assay reproducibility.
- Research facilities operating multi-user core labs with shared UPW distribution loops demanding consistent, auditable water quality.
FAQ
What inlet water quality is required for optimal CYTTEDI10 performance?
RO permeate with conductivity ≤ 10 µS/cm, TOC < 0.1 ppm, and silica < 0.05 ppm is mandatory. A pre-polishing mixed-bed cartridge is recommended if feed conductivity exceeds 5 µS/cm.
Can the module be operated intermittently or must it run continuously?
Continuous operation is strongly recommended. Intermittent cycling increases scaling risk on membranes and reduces long-term stack life; if shutdown is unavoidable, system must be flushed with UPW and depressurized per Section 4.2 of the Installation & Maintenance Manual.
Does the CYTTEDI10 support remote monitoring and alarm notification?
Yes—via analog outputs and optional Modbus RTU interface. Integration with building management systems (BMS) or lab-wide alert platforms (e.g., PagerDuty, Microsoft Power Automate) is supported using standard protocol gateways.
Is validation documentation available for GMP environments?
Deepflow supplies IQ/OQ templates compliant with ASTM E2500-13 and Annex 15, including membrane lot traceability, conductivity sensor calibration certificates, and material declarations per REACH and RoHS.
What is the expected service life of the ion-exchange stack under typical lab usage?
With proper feedwater pretreatment and adherence to scheduled cleaning protocols (quarterly citric acid flush recommended), the stack maintains ≥ 95% of initial resistivity performance for ≥ 36 months at 10 L/h average duty cycle.
