ChemTron RACK-NM Plus 19″ Rack-Mounted High-Purity Hydrogen Generator

Overview

The ChemTron RACK-NM Plus is a 19-inch rack-mountable hydrogen generator engineered for continuous, on-demand production of ultra-high-purity hydrogen (99.99996%) via catalytic proton exchange membrane (PEM) electrolysis of ultrapure water. Unlike traditional alkaline or solid polymer electrolyte systems, this generator employs a proprietary CCELL™ electrolytic cell constructed from high-purity titanium—eliminating metal ion leaching and catalytic interference—and integrates a platinum- and platinum-iridium-coated CPEM membrane to ensure stoichiometric H₂ generation without parasitic heat or water decomposition inefficiencies. The system operates at a maximum regulated pressure of 11 bar (160 psig), with internal gas storage strictly limited to <50 mL—well below the lower explosive limit (LEL) of hydrogen in air (4.0% v/v)—thereby meeting IEC 61000-6-4 and ISO 13849-1 functional safety requirements for laboratory environments. Designed for integration into analytical infrastructure, it serves as a certified, low-risk alternative to compressed H₂ cylinders in gas chromatography (GC, GC-MS), fast-GC, ICP-MS carrier gas supply, fuel cell testing, and catalytic hydrogenation workflows.

Key Features

• True rack-mount architecture compliant with EIA-310-D 19-inch standard; installs directly into server racks or analytical instrument enclosures without structural modification.
• CCELL™ titanium electrolyzer with precision current-controlled PEM stack—enabling >95% Faradaic efficiency, zero KOH usage, and no thermal runaway risk during extended operation.
• Triple-stage purification: (1) PEM-generated H₂, (2) static hydrophobic membrane drying, and (3) dual cold-regenerative purifier—achieving residual O₂ <0.1 ppm, H₂O <0.5 ppm, and total hydrocarbons <0.1 ppm.
• Comprehensive real-time monitoring: integrated conductivity sensor (for feedwater quality), level sensor (5 L reservoir), temperature and voltage diagnostics per CCELL module, seismic/vibration detection, and dual-pressure fault logic (internal leak & external demand loss).
• Fail-safe overpressure release at outlet, automatic shutdown on low water level, high conductivity, or abnormal cell voltage—fully aligned with EN 61000-6-2 EMC immunity standards.
• Modular scalability: optional cascade control enables synchronized operation of up to eight RACK-NM units, with automatic flow redistribution upon single-unit failure to maintain uninterrupted GC carrier gas delivery.

Sample Compatibility & Compliance

The RACK-NM Plus is validated for use with all major GC and GC-MS platforms requiring ultra-high-purity hydrogen as fuel or carrier gas—including Agilent, Thermo Fisher, Shimadzu, and PerkinElmer instruments—without detector degradation or baseline drift. Its output meets ASTM D7165 (hydrogen purity for analytical instrumentation), ISO 8573-1 Class 1:2:1 (compressed gas purity), and USP specifications for pharmaceutical-grade carrier gases. All electrical and mechanical design elements conform to CE (2014/30/EU EMC Directive, 2014/35/EU LVD), CSA C22.2 No. 61010-1, and FCC Part 15 Subpart B. The system supports GLP/GMP audit readiness through configurable event logging (power cycles, alarms, maintenance triggers) and optional PC-based software with 21 CFR Part 11-compliant user access controls and electronic signature capability.

Software & Data Management

A dedicated Windows-compatible application (optional) provides remote configuration, real-time parameter visualization (pressure, water conductivity, cell voltage, runtime hours), alarm history export (CSV), and firmware update management. The embedded controller stores ≥30 days of operational logs with timestamped events—including pressure deviations, conductivity excursions, and purge cycles—accessible via USB or Ethernet. For regulated laboratories, the software supports role-based user authentication, audit trail activation, and electronic record retention aligned with FDA 21 CFR Part 11 Annex 11 requirements. Cascade control mode allows centralized supervision of multi-unit deployments, including dynamic load balancing and predictive maintenance alerts based on cumulative cell operating hours.

Applications

• GC and GC-MS flame ionization (FID) and thermal conductivity (TCD) detectors requiring stable, contaminant-free H₂ fuel gas.
• Fast-GC and micro-GC systems demanding rapid pressure response and minimal dead volume.
• ICP-MS collision/reaction cell gas supply where oxygen and moisture impurities compromise polyatomic interference correction.
• Hydrogen fuel cell characterization under controlled, low-risk benchtop conditions.
• Catalytic hydrogenation reaction monitoring using in-situ gas analysis, where cylinder-derived impurities may poison noble metal catalysts.
• Flavor & fragrance laboratories operating in volatile organic compound (VOC)-rich environments—the RACK-NM Plus demonstrates robust resistance to ambient hydrocarbon ingress due to its cold-regenerative purification architecture.

FAQ

What water quality is required for optimal operation?
Ultrapure water with resistivity ≥5 MΩ·cm (at 25°C) is recommended; the system tolerates feedwater down to 1 MΩ·cm but will trigger conductivity alarms and suspend electrolysis if >5 µS/cm is detected.
Can the RACK-NM Plus be used alongside existing hydrogen cylinders?
Yes—the outlet includes an integrated overpressure relief valve and is compatible with passive manifold integration; simultaneous operation with cylinders is supported via external pressure regulators.
Is the unit suitable for unattended 24/7 operation?
Yes—designed for continuous duty with automatic refill-ready 5 L reservoir (optional rack-mounted auxiliary tank available), thermal management optimized for ambient temperatures up to 40°C, and redundant safety interlocks.
How does the cold-regenerative purifier compare to palladium-based systems?
Unlike Pd-diffusion purifiers—which degrade with CO exposure, require periodic regeneration, and exhibit declining flux over time—the RACK-NM Plus’ dual cold-regenerative system maintains consistent purity over >10,000 hours of operation without consumable replacement.
What warranty and service support is included?
Standard coverage includes 2+1 years parts-and-labor warranty on the main unit (excl. consumables) and 2+3 years on the CCELL electrolyzer; annual on-site preventive maintenance by ChemTron-certified engineers is provided at no cost for the product’s lifetime.