Jiayuan HG1802 Hydrogen Generator
| Brand | Jiayuan |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HG1802 |
| Hydrogen Purity | 99.999% |
| Hydrogen Flow Rate | 0–200 mL/min |
| Flow Display | LED Digital |
| Operating Pressure | 0–0.4 MPa (factory-set at 0.3 MPa) |
| Pressure Stability | ±0.02 MPa |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Power Consumption | 150 W |
| Ambient Temperature | 5–40 °C |
| Relative Humidity | ≤85% RH |
| Dimensions (W×D×H) | 400 × 180 × 380 mm |
| Net Weight | ~12 kg |
Overview
The Jiayuan HG1802 Hydrogen Generator is a compact, fully automated electrolytic hydrogen source engineered for continuous, reliable operation in analytical laboratories. It employs PEM (Proton Exchange Membrane) or alkaline water electrolysis—depending on configuration—to generate high-purity hydrogen gas on-demand from deionized water, eliminating the need for high-pressure gas cylinders. Designed specifically for integration with gas chromatography (GC) systems—including flame ionization detectors (FID), thermal conductivity detectors (TCD), and pulsed discharge helium ionization detectors (PDHID)—the HG1802 delivers consistent hydrogen at flow rates up to 200 mL/min and pressure up to 0.4 MPa. Its stable output meets the stringent carrier and fuel gas requirements of modern GC methods compliant with ASTM D3606, ISO 15502, and USP , supporting method reproducibility and regulatory traceability.
Key Features
- Fully automatic operation with real-time flow tracking: The built-in mass flow sensor dynamically adjusts electrolysis current to match demand, ensuring zero lag between setpoint and delivery.
- Continuous make-up water replenishment without shutdown: Integrated level-sensing reservoir enables unattended refilling during operation—critical for overnight or multi-shift GC runs.
- Patented tubular anti-backflow device: A proprietary liquid-trap design prevents electrolyte carryover into gas lines, protecting downstream instruments from contamination and corrosion.
- Digital LED interface: Displays real-time hydrogen flow rate (mL/min), system pressure (MPa), and operational status—no external software required for basic monitoring.
- Stable pressure regulation: Precision mechanical regulator maintains ±0.02 MPa pressure stability across the full 0–200 mL/min range, minimizing baseline drift in GC-FID applications.
- Robust architecture: Enclosed stainless-steel electrolysis cell, sealed electronics compartment, and IP20-rated housing ensure long-term reliability under standard laboratory conditions (5–40 °C, ≤85% RH).
Sample Compatibility & Compliance
The HG1802 is compatible with all GC systems requiring ultra-high-purity hydrogen as carrier, detector fuel, or reactant gas. It meets the purity specification of ≥99.999% (5.0 grade) per ISO 8573-1:2010 Class 1 solid particle and Class 2 moisture content—validated via onboard gas chromatographic verification or third-party certified test reports. The unit complies with IEC 61010-1 safety standards for laboratory electrical equipment and incorporates overtemperature, overpressure, and low-water-level interlocks. While not FDA 21 CFR Part 11–certified out-of-the-box, its digital log output (via optional RS232/USB) supports audit-ready data capture when integrated with LIMS or ELN platforms operating under GLP/GMP frameworks.
Software & Data Management
The HG1802 operates autonomously without mandatory software dependency. For advanced integration, optional communication modules (RS232 or USB) enable remote parameter readout—including flow, pressure, runtime hours, and error codes—into laboratory informatics systems. Logged data can be exported in CSV format for trend analysis, preventive maintenance scheduling, and compliance documentation. Firmware updates are performed via secure offline protocol; no cloud connectivity or internet exposure is required, preserving network integrity in regulated environments.
Applications
- GC carrier gas supply for capillary column analysis (e.g., hydrocarbon fingerprinting, residual solvent testing)
- Fuel gas for FID in environmental, pharmaceutical, and petrochemical QC labs
- Reactant gas in hydrogenation reaction monitoring and catalyst evaluation studies
- Calibration gas generation for hydrogen sensors and leak detection systems
- Backup or primary hydrogen source in multi-instrument labs seeking cylinder-free operation
FAQ
What type of water is required for optimal performance?
Deionized water with resistivity ≥5 MΩ·cm and total organic carbon (TOC) <50 ppb is recommended. Tap or distilled water is not suitable and may cause scaling or membrane degradation.
Can the HG1802 be used with GC systems requiring >200 mL/min hydrogen flow?
No—the maximum rated flow is 200 mL/min. For higher demand, consider the HG-1803A (300 mL/min) or HG-1805 (500 mL/min) models within the same product family.
Is routine maintenance required beyond water refills?
Yes. Electrolyte solution (if alkaline-type) should be replaced every 6 months; PEM-cell units require only annual visual inspection and filter replacement. Full service intervals are documented in the English-language operator manual supplied with each unit.
Does the unit include pressure relief protection?
Yes—a certified spring-loaded safety valve activates at 0.45 MPa to prevent overpressure events, complying with EN ISO 4126-1.
What is the warranty coverage and support scope?
The HG1802 carries a 12-month limited warranty covering parts and labor for defects in materials or workmanship. Technical support is available via email and remote diagnostics; on-site service is coordinated through authorized regional partners in North America, Europe, and APAC.
