SCIWAY UTAB Series Under-Desk Nitrogen Generator
| Brand | SCIWAY |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | UTAB Nitrogen Generator |
| Instrument Type | Membrane-Based Nitrogen Generator |
| Nitrogen Purity | 99.9% |
| Output Flow Rate | 0–70 L/min |
| Output Pressure | 0–116 psi (0–8 bar) |
| Dew Point | −40 °C |
| Cooling Method | Semiconductor Refrigerated Dryer with Finned-Tube Condenser |
| Safety Features | Integrated Liquid Droplet Sensor & Alarm, Multi-Stage Pressure & Thermal Protection |
| Mobility | Equipped with Omnidirectional Casters |
| Noise Level | <45 dB(A) |
| Warranty | 12 Months Standard |
| Service Response | 12-Hour Remote Support, On-Site Repair Within 48 Hours |
| Compliance | Designed for GLP/GMP-Compliant LC-MS Laboratories |
| Gas Options | High-Purity Nitrogen, Zero-Air, and Dry Air (Configurable per Application) |
Overview
The SCIWAY UTAB Series Under-Desk Nitrogen Generator is an engineered solution for laboratories requiring reliable, high-purity nitrogen supply in space-constrained environments—particularly for liquid chromatography–mass spectrometry (LC-MS) applications. Utilizing membrane separation technology, the UTAB system separates nitrogen from compressed ambient air via selective permeation through proprietary polymeric hollow-fiber membranes. This physical separation process avoids chemical consumption, ozone generation, or corona discharge—ensuring stable, maintenance-light operation over extended service intervals. Unlike pressure swing adsorption (PSA) systems, membrane-based generation delivers continuous flow without cycling, enabling consistent gas delivery critical for electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) sources. The UTAB’s compact footprint—reduced by 40% versus conventional integrated units—allows full installation beneath standard laboratory workbenches (height ≤ 75 cm), preserving valuable benchtop real estate while maintaining full compliance with ISO 8573-1:2010 Class 2.2.2 for compressed air quality and ASTM D6345-19 for nitrogen purity verification.
Key Features
- Under-desk form factor optimized for LC-MS labs: Total height < 65 cm; width < 50 cm; depth < 55 cm—designed to fit standard lab furniture configurations.
- Integrated semiconductor refrigerated dryer with finned-tube condenser: Achieves a consistent dew point of −40 °C at outlet, eliminating moisture-related ion source contamination and detector drift.
- Imported high-selectivity nitrogen separation membranes: Engineered for long-term stability (>15,000 hr operational life), zero electrical discharge risk, and resistance to oil vapor carryover.
- Intelligent air compression management: Variable-speed drive (VSD) compressor with real-time liquid droplet detection and automatic shutdown to prevent condensate ingress and extend membrane service life.
- Multi-layer safety architecture: Includes overpressure relief valves, thermal cutoff switches, redundant pressure transducers, and audible/visual fault indicators compliant with IEC 61000-6-2 EMC standards.
- Low-noise operation (<45 dB[A] at 1 m): Achieved via acoustic enclosure design, vibration-damping mounts, and optimized airflow routing—suitable for open-plan analytical labs.
Sample Compatibility & Compliance
The UTAB series supports all major LC-MS platforms—including Thermo Fisher Scientific (Orbitrap, TSQ series), Waters (Xevo, Vion, SQD), Agilent (6470, 6495), and Shimadzu (LCMS-8060)—without modification. Its output meets the gas quality requirements specified in USP Analytical Instrument Qualification and FDA 21 CFR Part 11 Annex 11 for instrument-critical utilities. Nitrogen purity (99.9% N₂, ≤10 ppm O₂, ≤10 ppm H₂O) satisfies ASTM D6345-19 Grade A specifications for mass spectrometry carrier and collision gases. Optional zero-air and dry-air modules meet ISO 8573-1:2010 Class 1.2.1 for particle, water, and oil content—enabling seamless integration into multi-gas LC-MS/MS workflows.
Software & Data Management
The UTAB operates as a standalone utility device with no software dependency. All operational parameters—including inlet pressure, outlet flow, dew point, membrane temperature, and compressor runtime—are displayed on a backlit LCD interface with real-time logging capability (internal memory retains 30 days of timestamped data). Optional RS-485 Modbus RTU or Ethernet TCP/IP connectivity enables integration into centralized lab infrastructure monitoring systems (e.g., LabVantage, STARLIMS) for audit-trail generation, remote diagnostics, and preventive maintenance scheduling aligned with ISO/IEC 17025:2017 clause 6.4.1.
Applications
- LC-MS nitrogen supply: Nebulizer, drying gas, and curtain gas for ESI/APCI sources.
- GC-MS make-up gas and carrier gas backup (where 99.9% purity suffices).
- Nitrogen blanketing during sample preparation and solvent evaporation.
- Zero-air generation for flame ionization detectors (FID) and chemiluminescence NOx analyzers.
- Dry-air supply for optical enclosures, glove boxes, and humidity-sensitive instrumentation.
FAQ
What is the maximum continuous flow rate at full pressure?
The UTAB delivers up to 70 L/min at 0–116 psi (0–8 bar), with flow-pressure relationship governed by ISO 8573-1-compliant internal regulation.
Does the system require external cooling water or exhaust ventilation?
No. The semiconductor refrigeration system is fully self-contained and convection-cooled—no plumbing or ducting required.
Can the UTAB be configured for dual-gas output (e.g., nitrogen + zero-air)?
Yes. Factory-configurable modular gas trains support simultaneous or switchable nitrogen/zero-air/dry-air outputs via solenoid-valve manifolds.
Is the unit compatible with regulated GMP/GLP environments?
Yes. Full IQ/OQ documentation packages, calibration certificates traceable to NIST standards, and 21 CFR Part 11-compliant electronic log export are available upon request.
What maintenance intervals are recommended?
Pre-filter replacement every 6 months; coalescing filter every 12 months; membrane inspection every 24 months—per manufacturer’s Preventive Maintenance Schedule (PMS-UTAB-REV3).
