SCIWAY ZABN 1000 Series Membrane-Based Nitrogen Generator

Overview

The SCIWAY ZABN 1000 Series is a laboratory-grade, membrane-based nitrogen generator engineered for continuous, on-demand supply of high-purity nitrogen gas to support critical analytical instrumentation—particularly liquid chromatography–mass spectrometry (LC-MS) systems. Utilizing hollow-fiber polymeric membrane separation technology, the ZABN 1000 selectively permeates oxygen, water vapor, carbon dioxide, and other trace gases from compressed air, retaining nitrogen with consistent 99.9% purity (v/v) under stable operating conditions. Unlike pressure swing adsorption (PSA) systems, membrane generators offer inherently oil-free, pulse-free output with no moving valves or cyclic regeneration—making them ideal for applications demanding long-term stability, minimal maintenance, and silent operation. Designed for seamless integration with standard oil-free compressors, the ZABN 1000 delivers 18 L/min of nitrogen at 60 psi (4.14 bar), meeting the operational flow and pressure requirements of major LC-MS platforms including AB SCIEX Triple Quad™ and QTRAP® systems, Agilent 6400/6500 series, Waters Xevo™ TQ-S, Thermo Fisher Scientific Vanquish™/TSQ™ series, and Shimadzu Nexera™/LCMS-8060 systems.

Key Features

• Hollow-fiber membrane module sourced from certified international suppliers, ensuring long service life (>15,000 hours nominal) and consistent separation performance across variable inlet air conditions.
• Integrated refrigerated air dryer (RDA) with automatic condensate drainage, achieving a guaranteed dew point of –20 °C—critical for humid ambient environments where ambient moisture may compromise downstream instrument performance or cause ion source contamination.
• 30-L stainless steel buffer tank minimizes pressure fluctuations and reduces compressor cycling frequency by up to 40%, extending compressor service intervals and improving overall system reliability.
• Compact footprint (W × D × H: 580 × 520 × 820 mm) with industrial-grade casters enables flexible placement in crowded analytical labs without dedicated utility rooms.
• Noise emission maintained below 55 dB(A) at 1 m distance—compliant with ISO 7779 and EU Directive 2000/14/EC—ensuring non-disruptive operation in open-plan laboratory settings.
• Modular architecture with tool-free access to filter housings, dryer core, and membrane module simplifies routine maintenance; all consumables are field-replaceable without specialized calibration tools.

Sample Compatibility & Compliance

The ZABN 1000 is validated for compatibility with LC-MS instruments requiring Grade 5 (ISO 8573-1:2010 Class 2.2.1) nitrogen: ≤0.1 ppm hydrocarbons, ≤0.01 mg/m³ total oil aerosol, and ≤–20 °C pressure dew point. It meets ASTM D6352-18 specifications for nitrogen used in mass spectrometry carrier and collision gas applications. The unit complies with IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity), and its electrical design conforms to UL 61010-1 and GB 4793.1 safety standards. While not intrinsically rated for hazardous locations, it is suitable for general laboratory use under GLP and ISO/IEC 17025-accredited environments when operated per manufacturer’s maintenance schedule.

Software & Data Management

The ZABN 1000 operates as a standalone hardware system with analog monitoring only—no embedded microprocessor or digital interface. Pressure, flow, and dew point are monitored via calibrated mechanical gauges and visual indicators (e.g., desiccant color-change window, condensate level sight glass). This design eliminates firmware vulnerabilities, network attack surfaces, and software validation overhead—making it fully compatible with FDA 21 CFR Part 11-compliant workflows where electronic records are managed externally by the host instrument’s acquisition software. Maintenance logs and performance verification data (e.g., purity spot-checks using handheld electrochemical O₂ analyzers) are documented manually per laboratory SOPs.

Applications

• LC-MS nitrogen supply: nebulizer, drying gas, and curtain gas for electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) sources.
• GC-MS make-up gas and carrier gas backup (for non-ppb-level applications).
• Blank solvent purging and sample vial headspace inerting in automated sample preparation workstations.
• Instrument purge gas for FTIR, Raman, and UV-Vis spectrophotometers requiring low-humidity inert atmospheres.
• General lab benchtop use for glove box purging, soldering protection, and reagent storage inerting.

FAQ

What inlet air quality is required for optimal membrane performance?
Oil-free compressed air meeting ISO 8573-1 Class 1.2.1 (≤0.01 mg/m³ total oil, ≤0.1 µm particulates, dew point ≤3 °C) is recommended. An upstream coalescing filter and activated carbon trap are advised if using non-dedicated lab compressors.
Can the ZABN 1000 be used with high-flow LC-MS systems requiring >20 L/min?
No—its rated maximum continuous output is 18 L/min at 60 psi. For higher demand, parallel installation of two units or upgrading to a PSA-based system (e.g., ZABN 2000 series) is recommended.
How often does the membrane module require replacement?
Under typical lab conditions (24/7 operation, clean inlet air), the membrane module maintains specification for ≥5 years or 43,800 operating hours. Replacement interval should be verified annually via O₂ content testing (target <1,000 ppm residual O₂).
Is the stainless steel buffer tank certified for pressure service?
Yes—the 30-L ASME-coded vessel is stamped with PED 2014/68/EU compliance and includes dual redundant pressure relief valves set at 75 psi.
Does the unit include remote monitoring capability?
No—remote telemetry, Modbus RTU, or Ethernet connectivity is not supported. Integration into building management systems requires external pressure/flow transducers and third-party SCADA configuration.