INNOTEG TH-300 Series High-Purity Hydrogen Generator

Overview

The INNOTEG TH-300 Series High-Purity Hydrogen Generator is an engineered solution for laboratories requiring continuous, on-demand hydrogen supply with exceptional purity and operational reliability. Utilizing Solid Polymer Electrolyte (SPE) membrane electrolysis—based on DuPont™ Nafion® ion-exchange membranes—the system directly electrolyzes high-resistivity deionized water (≥2 MΩ·cm) without caustic electrolytes, eliminating alkali carryover, corrosion risks, and maintenance associated with traditional KOH-based systems. The core electrolyzer features a titanium alloy cell stack with iridium–tantalum coated electrodes, ensuring low cell voltage (2.20–2.30 V), high electrochemical efficiency, and extended service life under sustained operation. Designed for integration into analytical gas supply chains, the TH-300 delivers stable hydrogen at pressures up to 0.4 MPa and flow rates adjustable from 0 to 300 mL/min—optimized for GC carrier and fuel gas applications, ECD/ELCD reaction gas, and low-pressure catalytic hydrogenation workflows.

Key Features

• SPE-based electrolysis using certified DuPont Nafion® proton exchange membrane for consistent 99.999% H₂ purity (dew point ≤ –70 °C, O₂ & N₂ impurities <1 ppm each)
• Titanium electrolytic cell with Ir–Ta catalytic coating: corrosion-resistant, low-voltage operation (2.20–2.30 V), and >15,000 hours nominal membrane life under standard duty cycles
• Digital LCD interface with real-time display of flow rate, output pressure, water level, and system status
• Integrated anti-overwater protection circuitry prevents liquid ingress into downstream GC EPC modules, safeguarding sensitive electronic pressure control systems
• Intelligent water-level monitoring with automatic shutdown during low-water conditions to prevent dry-electrolysis damage
• Dual-voltage compatibility: factory-configurable 220 V ±10% / 50 Hz or 110 V ±10% / 60 Hz input for global deployment
• Compact footprint (350 × 220 × 340 mm) and lightweight design (11 kg net) suitable for benchtop integration in ISO Class 5–7 laboratory environments

Sample Compatibility & Compliance

The TH-300 is compatible with all major GC platforms—including Agilent, Thermo Fisher, Shimadzu, PerkinElmer, and Waters—regardless of EPC architecture or fuel gas interface specification. It meets baseline requirements for ISO/IEC 17025-accredited laboratories performing chromatographic analysis. While not certified to UL/CSA or CE as a standalone appliance, its electrical design complies with IEC 61010-1:2010 safety standards for laboratory equipment. Hydrogen output conforms to ASTM D7622–21 (Standard Specification for Hydrogen Gas for Use in Gas Chromatography) and USP for pharmaceutical-grade carrier gases. Optional audit-trail-ready firmware supports GLP/GMP-aligned data integrity protocols when paired with compliant LIMS or CDS software.

Software & Data Management

The TH-300 operates as a standalone hardware unit with no embedded OS or remote connectivity. All operational parameters are locally monitored via front-panel LCD and tactile controls. For laboratories requiring traceable gas delivery logs, optional analog 0–5 V or 4–20 mA output signals (configurable per user request) enable integration with SCADA systems or third-party data acquisition platforms. No proprietary software installation is required; system diagnostics and fault codes are displayed in plain English on the interface. Firmware updates—when released—are performed via secure USB interface under controlled engineering supervision, maintaining regulatory alignment with FDA 21 CFR Part 11 Annex 11 principles for instrument qualification.

Applications

• Carrier and fuel gas supply for capillary and packed-column gas chromatography (GC), including FID, TCD, and PID detectors
• Reaction gas source for electron capture detectors (ECD), electrolytic conductivity detectors (ELCD), and atomic emission detectors (AED)
• On-site hydrogen feed for bench-scale catalytic hydrogenation, hydrotreating, and reduction studies in synthetic chemistry labs
• Calibration gas generation in environmental testing labs (e.g., VOC analysis per EPA Method 8260/8270)
• Support gas for portable GC-MS field units deployed in petrochemical, forensic, and public health emergency response scenarios
• Primary hydrogen source in academic teaching labs where safety, simplicity, and long-term consumable cost predictability are prioritized

FAQ

What type of water is required for optimal operation?
Deionized water with resistivity ≥2 MΩ·cm (equivalent to ASTM Type I or ISO 3696 Grade 1) or double-distilled water. Tap water, softened water, or RO-only water must not be used.
Does the TH-300 require periodic electrolyte replacement or membrane cleaning?
No. The SPE membrane is maintenance-free under normal operating conditions. No chemical replenishment, acid washing, or membrane rinsing is required.
Can the TH-300 be used with GC systems that demand ultra-stable flow and pressure?
Yes. Pressure stability is maintained within ±0.001 MPa over 24-hour continuous operation; flow regulation repeatability is ±0.5 mL/min across the full 0–300 mL/min range.
Is external drying or purification necessary to achieve 99.999% purity?
No. The integrated palladium-diffusion purifier and desiccant cartridge deliver final-stage polishing; no additional external traps are needed for standard GC applications.
What safety certifications does the TH-300 hold?
It adheres to IEC 61010-1:2010 for electrical safety and incorporates redundant thermal cutoffs, pressure relief valves, and hydrogen leak detection circuits compliant with EN 60079-0 for non-explosive zone use (Zone 2 / Class I Division 2).