Hailong HLT-500II Nitrogen-Hydrogen-Air Integrated Gas Generator

Overview

The Hailong HLT-500II Nitrogen-Hydrogen-Air Integrated Gas Generator is an engineered solution for laboratories requiring concurrent, on-demand supplies of high-purity nitrogen, hydrogen, and instrument-grade air—without reliance on high-pressure gas cylinders. Designed around a modular electrochemical architecture, the system integrates three independent gas generation modules into a single compact chassis: a PEM-based hydrogen generator, a membrane-separation nitrogen generator, and a multi-stage compressed-air purification train. Each module operates under closed-loop pressure and flow control, ensuring stable output across variable demand conditions typical in gas chromatography (GC), GC-MS, and elemental analyzers. The unit eliminates risks associated with cylinder handling—including pressure surges, contamination events, and logistical delays—while maintaining strict compliance with ISO 8573-1:2010 Class 2:2:2 specifications for compressed air quality and ASTM D6304-22 requirements for carrier and fuel gas purity in hydrocarbon analysis.

Key Features

• Triple-output architecture delivering simultaneous N₂, H₂, and purified air from a single footprint (W × D × H: 520 × 420 × 380 mm)
• Stainless steel integrated buffer tanks for all three gases—rated to 1.0 MPa working pressure, ASME BPVC Section VIII compliant
• Hydrogen module with platinum-coated PEM electrolyzer and real-time anti-alkaline-backflow protection via solenoid-valve interlock and differential pressure monitoring
• Nitrogen module employing hollow-fiber membrane separation with automatic flow tracking and pressure compensation across 0–500 mL/min range
• Air module featuring three-stage filtration (coalescing + activated carbon + desiccant) plus auto-drain condensate separator and precision pressure regulation (±0.01 MPa stability)
• Intelligent power management with soft-start circuitry, thermal overload cutoff, and ambient temperature-compensated cooling fans
• Front-panel digital interface with independent flow/pressure readouts, system status LEDs, and fault-code diagnostics

Sample Compatibility & Compliance

The HLT-500II is validated for continuous operation with analytical instruments requiring ultra-high-purity support gases, including flame ionization detectors (FID), thermal conductivity detectors (TCD), nitrogen phosphorus detectors (NPD), and helium replacement applications in GC carrier gas mode. All gas outputs meet or exceed the purity thresholds specified in USP , EP 2.2.43, and ISO 8573-1:2010 for instrumental gas supply. Hydrogen output complies with IEC 60079-10-1 hazardous area classification guidelines when installed per manufacturer-specified ventilation and leak-detection protocols. The system supports GLP/GMP environments through optional audit-trail-enabled firmware (v2.3+), enabling timestamped event logging for power cycles, pressure deviations, and maintenance alerts per FDA 21 CFR Part 11 data integrity requirements.

Software & Data Management

While the base HLT-500II operates via standalone front-panel controls, optional RS-485/Modbus RTU or Ethernet TCP/IP interface enables integration into centralized lab infrastructure. Compatible with LabVantage LIMS, Thermo Fisher Chromeleon, and Agilent OpenLab CDS platforms, the generator transmits real-time metrics—including cumulative runtime, electrolyzer voltage decay trends, filter saturation indicators, and pressure deviation history—to external SCADA or CMMS systems. Firmware updates are performed via secure USB key with SHA-256 signature verification. All operational logs are stored internally for ≥12 months and exportable as CSV or PDF reports for internal QA review or regulatory inspection.

Applications

• Gas chromatography: N₂ as carrier gas (replacing helium), H₂ as fuel for FID/NPD, and dry oil-free air for make-up gas or detector air supply
• Elemental analyzers (CHNS/O): High-purity H₂ for reduction furnaces and N₂ for purge and carrier functions
• FTIR and laser spectroscopy: Stable, vibration-free gas streams eliminating cylinder-induced baseline drift
• Environmental testing labs: Continuous air supply for TO-14/TO-15 canister purging and calibration standards preparation
• Pharmaceutical QC: GMP-aligned gas sourcing for dissolution apparatus purge, headspace GC, and residual solvent analysis

FAQ

What safety certifications does the HLT-500II hold?

The unit carries CE marking per EU Machinery Directive 2006/42/EC and EMC Directive 2014/30/EU. Hydrogen generation module is certified to UL 2262 for laboratory gas generators.
Can the generator be used in an unattended overnight operation?

Yes—equipped with redundant over-pressure relief valves, automatic shutdown on electrolyte level depletion, and continuous H₂ leak detection (0.1% LEL threshold). Remote alarm relay output supports integration with building BMS.
How often do consumables require replacement?

Air filters: every 6,000 operating hours or 12 months (whichever occurs first); nitrogen membrane: 20,000 hours; PEM stack: rated for ≥15,000 hours at 80% load. Replacement intervals are tracked automatically and displayed on the front panel.
Is the system compatible with helium-based GC methods?

While not a helium generator, the HLT-500II’s high-purity nitrogen (≥99.999%) serves as a validated carrier gas substitute in numerous ASTM and ISO methods where helium scarcity or cost mandates transition—particularly in packed-column and wide-bore capillary applications.
Does the warranty cover field service response?

Standard warranty includes remote technical support and parts coverage. On-site service contracts are available regionally through authorized Hailong service partners, with SLAs ranging from 48-hour to next-business-day response based on geographic tier.