EDI Module, Deepflow CYTTEDI100 Ultra-Pure Water System (100 L/h)
| Brand | Deepflow |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CYTTEDI100 |
| Flow Rate | 100 L/h |
| Technology | Electrodeionization (EDI) |
| Output Water Quality | ≥18.2 MΩ·cm @ 25°C, <5 ppb TOC, <0.1 CFU/mL, <0.02 µm particle retention |
| Power Supply | 220 VAC ±10%, 50/60 Hz |
| Dimensions (W×D×H) | 450 × 550 × 720 mm |
| Weight | 48 kg |
| Operating Temperature | 5–35 °C |
| Inlet Feed Water Requirement | RO permeate (≤20 µS/cm, ≤50 ppm NaCl equivalent, <0.5 ppm silica, <0.1 ppm oxidants) |
Overview
The Deepflow CYTTEDI100 EDI Module is an engineered electrochemical purification unit designed for continuous, chemical-free polishing of reverse osmosis (RO) permeate into Type I ultra-pure water (UPW) compliant with ASTM D1193-20, ISO 3696:1987, and CLSI EP21-A guidelines. Unlike mixed-bed ion exchange systems requiring periodic regeneration and disposal, this module employs stacked ion-exchange membranes, selective resins, and direct current to drive simultaneous ion removal, water splitting, and in-situ resin regeneration—enabling stable resistivity ≥18.2 MΩ·cm at 25 °C without downtime or consumable replacement. Its 100 L/h nominal throughput supports centralized UPW distribution in mid-to-large-scale laboratories, QC facilities, and R&D centers where uninterrupted supply to analytical instruments (e.g., HPLC, LC-MS, ICP-MS, cell culture incubators) is operationally critical.
Key Features
- Electrodeionization core with proprietary dual-chamber membrane stack architecture for enhanced ion migration efficiency and reduced scaling susceptibility
- Integrated real-time conductivity/resistivity monitoring with digital output (4–20 mA) and Modbus RTU interface for PLC integration
- Auto-flush cycle triggered by pressure differential or runtime thresholds to maintain membrane integrity and minimize fouling
- Stainless steel 316L fluidic path and sanitary tri-clamp connections (1/2″) compatible with ISO 2852 and ASME BPE standards
- Front-panel touchscreen HMI with event log, alarm history (including low flow, high inlet conductivity, power fault), and user-accessible calibration routines
- CE-marked design compliant with EN 61000-6-2 (EMC immunity) and EN 61000-6-4 (EMC emission) directives
Sample Compatibility & Compliance
The CYTTEDI100 accepts only pre-treated RO permeate meeting strict feed specifications: conductivity ≤20 µS/cm, total organic carbon (TOC) <0.5 ppm, free chlorine <0.05 ppm, and particulate load <1 µm. It is not rated for direct tap or softened water input. The system conforms to Good Laboratory Practice (GLP) data integrity requirements through non-volatile memory storage of operational parameters (flow, pressure, temperature, resistivity) with timestamping. Audit trails are exportable via USB and support FDA 21 CFR Part 11-compliant electronic record management when deployed with validated third-party LIMS or SCADA platforms.
Software & Data Management
No proprietary cloud platform is required. All operational data—including hourly average resistivity, cumulative runtime, flush cycles executed, and alarm timestamps—are stored locally in encrypted binary format on internal flash memory (retention ≥10 years). The embedded firmware supports firmware updates via signed .bin files transferred over USB, with SHA-256 checksum verification. RS-485 serial communication enables integration into existing facility monitoring systems using standard Modbus function codes (03h, 06h, 10h). Optional analog outputs (0–5 V / 4–20 mA) allow connection to building management systems (BMS) for predictive maintenance alerts.
Applications
- HPLC and UHPLC mobile phase preparation requiring low ionic background and minimal UV-absorbing organics
- Cell and tissue culture media formulation where endotoxin and microbial contamination must remain below 0.03 EU/mL and 0.1 CFU/mL respectively
- Atomic absorption spectroscopy (AAS) and inductively coupled plasma (ICP) sample dilution to prevent spectral interferences from alkali metals and halides
- Trace metal analysis workflows demanding sub-ppt detection limits, enabled by consistent <5 ppb TOC and <0.1 ppt sodium carryover
- Pharmaceutical stability testing per ICH Q5C, where water quality directly impacts degradation pathway interpretation
FAQ
What feed water quality is mandatory for stable CYTTEDI100 operation?
RO permeate with conductivity ≤20 µS/cm, silica <0.5 ppm, oxidant residual <0.05 ppm, and SDI <3 is required. Pre-filtration through 0.2 µm absolute-rated cartridge is recommended.
Does the module require acid or caustic regeneration?
No. Electrodeionization eliminates chemical regeneration; ion exchange resins are continuously regenerated in situ by electrochemical water dissociation.
Can the CYTTEDI100 be integrated into an existing water distribution loop?
Yes. It features 1/2″ tri-clamp inlet/outlet ports and supports loop recirculation with variable-speed booster pump control via 0–10 V analog signal.
Is validation documentation available for GMP environments?
Factory acceptance test (FAT) reports, IQ/OQ protocol templates, and material compliance certificates (3.1 EN 10204) are provided upon order confirmation.
What is the expected service life of the ion-exchange membranes?
Under specified feed conditions and scheduled preventive maintenance (annual membrane inspection, quarterly electrode cleaning), design life exceeds 5 years with ≤15% resistivity drift.
