Parker Domnick Hunter UHPZN2-1000C-E Zero-Grade High-Purity Nitrogen Generator
| Brand | Parker |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | UHPZN2-1000C-E |
| Nitrogen Generation Principle | Pressure Swing Adsorption (PSA) |
| Output Flow Rate | 1.0 L/min |
| Output Pressure | 5–7 bar (adjustable) |
| Nitrogen Purity | ≥99.9995% (v/v) |
| Hydrocarbon Content | <0.1 ppm (as CH₄ equivalent) |
| Dew Point | ≤–70 °C (at 5 bar) |
| Integrated Oil-Free Compressor | Yes |
| Dimensions (W×H×D) | 534 × 586 × 966 mm |
| Weight | 79.6 kg |
Overview
The Parker Domnick Hunter UHPZN2-1000C-E is a laboratory-grade zero-grade nitrogen generator engineered for precision analytical instrumentation requiring ultra-high-purity, hydrocarbon-free nitrogen gas. Utilizing dual-stage purification based on pressure swing adsorption (PSA) and catalytic oxidation, this system draws ambient air, compresses it via an integrated oil-free scroll compressor, removes oxygen, CO₂, and moisture using carbon molecular sieves, and then subjects the resulting high-purity nitrogen stream to a heated catalytic converter that oxidizes residual hydrocarbons—including methane, ethane, and volatile organic compounds—to levels below 0.1 ppm (as CH₄). The final output meets ASTM D6299 and ISO 8573-1 Class 1:2:1 specifications for compressed gases used in trace-level analytical applications. Designed for continuous, unattended operation, the UHPZN2-1000C-E eliminates dependency on high-pressure cylinders or liquid nitrogen dewars while delivering consistent, on-demand nitrogen at 1.0 L/min and up to 7 bar outlet pressure.
Key Features
- Integrated oil-free scroll compressor—eliminates risk of oil contamination and removes need for external compressed air supply
- Dual-stage purification: PSA-based O₂/CO₂/H₂O removal followed by catalytic hydrocarbon oxidation at >300 °C
- Zero-grade nitrogen output: ≥99.9995% purity, <0.1 ppm total hydrocarbons, dew point ≤–70 °C (at 5 bar)
- Intelligent pressure regulation with built-in safety valves, overpressure protection, and automatic shutdown on fault detection
- Compact footprint (534 × 586 × 966 mm) suitable for under-bench installation, minimizing lab space utilization
- Low power consumption (<1.2 kW), energy-efficient operation compliant with IEC 61000-3-2 harmonic emission standards
- Front-panel digital display with real-time monitoring of outlet pressure, flow rate, catalyst temperature, and system status
Sample Compatibility & Compliance
The UHPZN2-1000C-E is validated for use with gas chromatography (GC) carrier gas, inductively coupled plasma optical emission spectroscopy (ICP-OES) purge gas, evaporative light scattering detection (ELSD), and other sensitive detection systems where baseline stability and low chemical background are critical. It conforms to key regulatory and quality frameworks including ISO 9001:2015 (certified at Parker Domnick Hunter’s UK manufacturing facility), FDA 21 CFR Part 11-ready data logging capability (when paired with optional software), and GLP/GMP-aligned operational documentation. All wetted materials—including stainless-steel gas paths, alumina desiccant beds, and noble-metal catalysts—are selected per USP and ASTM F2237 for inertness and extractables control.
Software & Data Management
While the base unit operates autonomously via embedded firmware, optional Parker Connect™ software enables remote monitoring, event logging, and audit-trail generation compatible with 21 CFR Part 11 requirements. System logs record timestamped entries for pressure excursions, catalyst thermal cycles, maintenance alerts (e.g., filter replacement intervals), and runtime statistics. Data export is supported in CSV and XML formats for integration into LIMS or electronic lab notebook (ELN) platforms. Firmware updates are delivered via secure USB interface with cryptographic signature verification.
Applications
- GC carrier gas for capillary column analysis requiring stable retention time and minimal detector noise
- ICP-OES plasma purge and nebulizer gas, where hydrocarbon interference can suppress signal intensity or induce polyatomic interferences
- ELSD and CAD (charged aerosol detection) mobile phase nebulization, dependent on consistent gas composition and dew point
- Blank gas supply for TO-15, TO-17, and EPA Method 8260B sampling canisters and sorbent tubes
- Instrument purge environments for FTIR, Raman, and XRD systems sensitive to atmospheric contaminants
- Controlled-atmosphere glove boxes requiring continuous inerting with trace-hydrocarbon-free nitrogen
FAQ
What does “zero-grade” mean in the context of nitrogen purity?
Zero-grade nitrogen refers to nitrogen gas with total hydrocarbon content <0.1 ppm (measured as methane equivalent) and oxygen content <1 ppm—achieved here through catalytic oxidation post-PSA purification.
Does the UHPZN2-1000C-E require external compressed air?
No—the unit includes a certified oil-free scroll compressor; no external air source is needed.
How often must consumables be replaced?
Pre-filters require replacement every 6 months under typical lab use; the carbon molecular sieve bed is rated for ≥20,000 hours; the catalytic converter has a service life of ≥3 years at rated flow.
Is the system compatible with GC autosamplers requiring precise pressure ramping?
Yes—integrated pressure regulators support programmable ramp profiles when configured with optional analog/digital I/O modules.
Can multiple instruments be fed from one generator?
This model is designed for single-instrument supply at 1.0 L/min; for multi-port distribution, Parker recommends the UHPZN2-3000C-E or integration with a dedicated manifold system meeting ISO 8573-7 cleanliness class requirements.
