Truelab GREEN-Q2-5T / GREEN-Q2-10T Ultra Pure Water System
| Brand | Truelab |
|---|---|
| Origin | Jiangsu, China |
| Model | GREEN-Q2-5T / GREEN-Q2-10T |
| Output Capacity | 5 L/h / 10 L/h |
| Resistivity | 13–17.5 MΩ·cm @ 25 °C |
| Heavy Metals & Soluble Silica | < 0.1 ppb |
| Total Organic Carbon (TOC) | < 10 ppb |
| Microbial Count | < 1 CFU/mL |
| Particles (>0.2 µm) | < 1 particle/mL |
| Feed Water Requirement | Municipal tap water (TDS < 200 ppm, 5–45 °C, pressure 1.0–4.0 kgf/cm²) |
| RO Rejection Rate | >99% for ions, >99% for organics (MW > 200 Da), >99% for particles & bacteria |
| Power Supply | 220 V, 50 Hz, 50–80 W |
| Noise Level | <50 dB(A) |
| Dimensions (W×D×H) | 315 × 440 × 470 mm |
| Weight | ~18 kg |
| Certifications | NSF-certified tubing & fittings, food-grade PP resin cartridges, DOW RO membranes |
Overview
The Truelab GREEN-Q2 series is a compact, integrated ultra-pure water system engineered for laboratories requiring consistent, high-fidelity Type I water per ASTM D1193, ISO 3696, CLSI EP21-A, USP , and EU Pharmacopoeia standards. It employs a multi-stage purification architecture—pre-filtration (PP + dual UDF), reverse osmosis (RO), and post-RO deionization (DI)—to convert municipal tap water directly into ultrapure water without external pretreatment under specified feed conditions (TDS ≤ 200 ppm, 5–45 °C, 1.0–4.0 kgf/cm²). The system delivers two independent streams: RO water (suitable for glassware rinsing, buffer preparation, and general lab use) and DI water (≥13–17.5 MΩ·cm @ 25 °C), meeting or exceeding the resistivity, TOC, endotoxin, and particle specifications defined for ASTM Type I and ISO Grade 1 water. Its design prioritizes operational safety, long-term reliability, and compliance-ready operation in regulated environments.
Key Features
- Integrated dual-output architecture: Simultaneous production of RO water and ultrapure DI water from a single tap-water inlet.
- NSF-certified fluid path: All tubing, quick-connect fittings, and housing components comply with NSF/ANSI Standard 61 for potable water contact safety.
- DOW FilmTec™ RO membrane: Factory-installed, high-rejection thin-film composite membrane ensuring >99% ion removal and >99% organic rejection (MW > 200 Da) over extended service life.
- Two-column DI module: 160 × 80 × 390 mm modular cartridge assembly containing 3 L of high-capacity, food-grade polypropylene-encapsulated ion-exchange resin; thermally fused construction eliminates adhesive leaching and ensures zero extractables.
- Real-time dual-parameter monitoring: Integrated conductivity sensor (cell constant 0.01 cm⁻¹) with ±0.1 °C temperature resolution and automatic temperature compensation (ATC); continuous online display of resistivity (MΩ·cm) and water temperature (°C).
- 24 VDC low-voltage primary power architecture: Complies with IEC 61010-1 safety requirements for laboratory equipment; reduces electrical hazard risk in humid or splash-prone environments.
- Intelligent protection logic: Automatic low-pressure shutdown, leak detection alert, recirculation error prevention, and RO membrane flush cycle management.
- Electromagnetic compatibility (EMC)-optimized design: Meets EN 61326-1 for immunity to industrial electromagnetic interference; acoustic noise <50 dB(A) ensures quiet operation in shared lab spaces.
Sample Compatibility & Compliance
The GREEN-Q2 produces water fully compliant with analytical and regulatory requirements for critical applications including HPLC mobile phase preparation, IC, GC-MS solvent blanks, cell culture media formulation, and trace-metal analysis. Its output meets ISO 3696 Grade 1, ASTM D1193 Type I, CLSI EP21-A, and USP specifications for resistivity (≥18.2 MΩ·cm at theoretical limit), TOC (<10 ppb), microbial load (<1 CFU/mL), and particle count (0.2 µm). While not certified to FDA 21 CFR Part 11 out-of-the-box, its audit-ready logging capability—via timestamped resistivity and temperature records stored in non-volatile memory—supports GLP/GMP documentation workflows when paired with validated SOPs. All wetted materials are USP Class VI-certified and leachables-tested per ISO 10993-12 protocols.
Software & Data Management
The GREEN-Q2 features an intuitive 4.3-inch full-color capacitive touchscreen interface with multilingual support (English, German, French, Spanish). No external software or PC connection is required for routine operation. System logs—including date/time-stamped resistivity readings, temperature, operational status (RO/DI active/idle), and maintenance alerts—are retained internally for ≥12 months. Optional USB export enables CSV-formatted data transfer for integration into LIMS or QA/QC databases. Calibration history, cartridge replacement dates, and RO membrane performance metrics (e.g., rejection ratio trends) are tracked automatically and displayed on-demand. The interface supports user-defined alarm thresholds and configurable auto-flush intervals aligned with ISO 14644 cleanroom maintenance schedules.
Applications
- HPLC, UHPLC, and LC-MS mobile phase and blank preparation
- Atomic absorption spectroscopy (AAS), ICP-OES, and ICP-MS diluent and rinse solutions
- Cell and tissue culture media, PBS, and trypsin solutions
- ELISA, PCR, and next-generation sequencing reagent preparation
- Calibration standards for trace elemental analysis
- Feed water for downstream ultrapure systems (e.g., UV/UF polishing units)
- Routine lab tasks: Glassware washing, autoclave feed, environmental chamber humidification, salt spray testing, and stability chamber operation
FAQ
What feed water quality is required for optimal GREEN-Q2 performance?
Municipal tap water with TDS ≤ 200 ppm, temperature between 5–45 °C, and inlet pressure of 1.0–4.0 kgf/cm² (14–58 psi). For TDS > 200 ppm, an external softener is recommended to prevent premature RO scaling.
How often must the DI resin cartridge be replaced?
Under typical usage (5–10 L/h, TDS < 100 ppm feed), replacement is required every 6–12 months. The system displays real-time resistivity decay and triggers a visual alert when outlet resistivity drops below 15 MΩ·cm.
Does the GREEN-Q2 include UV or UF polishing stages?
No. The GREEN-Q2 is configured as a RO/DI system optimized for Type I water per ASTM/ISO. UV or UF modules are available as optional add-ons for endotoxin-sensitive applications such as mammalian cell culture.
Is the system suitable for GMP-regulated environments?
Yes—when operated within documented SOPs, with periodic verification (e.g., quarterly TOC/resistivity validation per USP ), and with maintenance logs archived per ALCOA+ principles. Full 21 CFR Part 11 compliance requires supplemental electronic signature and audit trail software.
Can the system be wall-mounted or integrated into a central water network?
It is designed as a freestanding benchtop unit. Integration into centralized loops is not supported; however, it can supply multiple point-of-use outlets via passive distribution manifolds when installed with appropriate backflow prevention and recirculation controls.
