i-Lab KL65-1A Nitrogen Generator

Overview

The i-Lab KL65-1A Nitrogen Generator is an engineered gas supply solution designed specifically for high-sensitivity liquid chromatography–mass spectrometry (LC-MS) systems—particularly those manufactured by SCIEX (formerly AB Sciex), including the 3000, 4000, 5000, 6000, and 7000 series. It employs hollow fiber membrane separation technology to continuously separate nitrogen from compressed air, delivering on-demand, high-purity nitrogen at a stable flow rate of up to 25 L/min and pressure up to 7 bar. Unlike pressure swing adsorption (PSA) systems, membrane-based generation offers inherently smooth pressure response, minimal pulsation, and zero maintenance downtime associated with carbon molecular sieve replacement. The KL65-1A integrates a proprietary oil-free scroll air compressor, multi-stage filtration (coalescing, desiccant, and hydrocarbon-adsorbing), and a nitrogen buffer tank to ensure consistent delivery under dynamic LC-MS load conditions—critical for electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) sources requiring uninterrupted, low-particulate, low-hydrocarbon nitrogen.

Key Features

• Imported high-flux hollow fiber membrane module with proven long-term stability and resistance to feed-air humidity fluctuations
• Integrated oil-free scroll air compressor delivering quiet operation (≤52 dB[A]) and extended service life (>15,000 hours MTBF)
• Three-stage purification train: particulate removal (0.01 µm), desiccation (dew point ≤ −40 °C), and hydrocarbon adsorption (<0.1 ppm THC)
• Intelligent PLC-based control system with real-time monitoring of inlet pressure, outlet pressure, flow rate, purity estimate, and temperature
• Automatic ECO mode activation when downstream demand falls below 30% of rated capacity—reducing compressor cycling and power consumption by up to 40%
• Compact footprint (480 × 420 × 720 mm) enabling placement directly beside or beneath LC-MS instruments without external ventilation ducting
• Buffer tank (3.2 L internal volume) dampens transient flow demands and eliminates frequent compressor restarts during gradient elution cycles

Sample Compatibility & Compliance

The KL65-1A meets essential gas quality requirements defined in ASTM D6352–22 (Standard Guide for Gas Purity in Mass Spectrometry) and aligns with SCIEX’s published LC-MS instrument gas specifications for ESI/APCI source gases. Its output complies with ISO 8573-1:2010 Class 2:2:1 for solid particles, water, and oil content—ensuring compatibility with all major LC-MS platforms requiring ≥99.9% N₂ (≤1000 ppm O₂, ≤10 ppm H₂O, ≤0.1 ppm THC). The system supports GLP/GMP environments through optional audit-trail-enabled firmware (v2.3+), logging operational events, alarm history, and calibration timestamps per FDA 21 CFR Part 11 requirements.

Software & Data Management

The embedded controller provides local status display via a 4.3-inch TFT touchscreen with intuitive navigation. All operational parameters—including runtime hours, total gas delivered (L), filter service intervals, and historical pressure/flow trends—are stored internally for ≥12 months. Optional RS-485 Modbus RTU or Ethernet TCP/IP interface enables integration into laboratory building management systems (BMS) or centralized gas monitoring dashboards. Remote diagnostics and firmware updates are supported via secure HTTPS portal access—no proprietary software installation required.

Applications

• Primary nitrogen supply for SCIEX Triple Quad™ and QTRAP® LC-MS/MS systems (e.g., 6500+, 7500, 9000 series)
• Collision/inert gas for tandem MS fragmentation cells
• Drying gas for ESI and APCI sources
• Sheath gas in high-resolution Orbitrap-based platforms (when used with compatible flow adapters)
• Support gas for automated sample preparation workstations requiring inert atmosphere (e.g., SPE, derivatization modules)
• Modular scalability: Multiple KL65-1A units can be manifolded for parallel operation in core facilities serving >10 LC-MS instruments

FAQ

Is the KL65-1A certified for use in regulated pharmaceutical laboratories?
Yes—when configured with audit-trail firmware and connected to a validated network infrastructure, it supports 21 CFR Part 11 compliance for electronic records and signatures.
What compressed air quality is required for optimal membrane performance?
Oil-free air with dew point ≤ −40 °C and particulate filtration to ISO 8573-1 Class 2 is mandatory; integrated pre-filters do not replace upstream air treatment.
Can the unit operate unattended for 72-hour continuous runs?
Yes—designed for 24/7 operation with thermal overload protection, automatic shutdown on filter saturation, and self-diagnostics triggered every 24 hours.
Does the KL65-1A require periodic recalibration of purity sensors?
No—purity is inferred from membrane differential pressure and flow ratio algorithms; no inline O₂ sensor is installed, eliminating drift-related recalibration.
How is maintenance scheduled and tracked?
Filter replacement intervals (every 6,000 operating hours) and compressor service (every 15,000 hours) are automatically logged and displayed with countdown timers on the HMI screen.