i-Lab KL70-1 Nitrogen Generator
| Brand | i-Lab |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | KL70-1 |
| Instrument Type | Nitrogen Generator |
| Nitrogen Generation Principle | Hollow Fiber Membrane Separation |
| Output Flow Rate | 70 L/min |
| Output Pressure Range | 0–7 bar |
| Nitrogen Purity | 99.9% |
| Noise Level | ≤60 dB(A) |
| Filtration Stages | Triple-Stage Composite (Water, Hydrocarbons, Particulates) |
| Gas Impurity Level | ≤0.1 ppm |
| Pressure Fluctuation | <0.5% |
| Control Mode | Fully Automatic One-Touch Start/Stop |
| Power Management | Intelligent Standby Triggered by Pressure Threshold |
| Integrated Air Compressor | Oil-Free, Low-Noise, Imported |
Overview
The i-Lab KL70-1 Nitrogen Generator is an engineered solution for laboratories requiring continuous, high-purity nitrogen gas with exceptional stability and reliability—specifically optimized for liquid chromatography–mass spectrometry (LC-MS) applications. Utilizing hollow fiber membrane separation technology, the system separates nitrogen from compressed ambient air by exploiting differential permeation rates of oxygen, water vapor, and nitrogen across semi-permeable polymeric membranes. This physical separation method delivers consistent 99.9% nitrogen purity without chemical consumables or catalytic degradation, ensuring long-term operational integrity and compliance with ISO 8573-1:2010 Class 2:2:2 air quality requirements for instrument-grade gases. Designed for seamless integration into modern analytical workflows, the KL70-1 eliminates dependency on high-pressure nitrogen cylinders, reducing logistical overhead, safety risks associated with cylinder handling, and variability in gas supply continuity.
Key Features
- Hollow fiber membrane module with imported high-flux membrane bundles engineered for sustained separation efficiency and minimal pressure drop across the gas path.
- Integrated oil-free, low-noise air compressor with multi-layer acoustic damping and vibration isolation—achieving ≤60 dB(A) at 1 m distance, compliant with ISO 7779 and ANSI S12.55 laboratory noise standards.
- Intelligent pressure-triggered standby mode: automatically transitions to low-power state when output pressure reaches user-defined upper threshold, extending compressor service life and reducing cumulative energy consumption by up to 35% under intermittent-use conditions.
- Integrated nitrogen buffer tank coupled with dynamic pressure-balancing algorithm to suppress flow pulsation (<0.5% peak-to-peak variation), ensuring stable gas delivery critical for electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) sources.
- Triple-stage composite filtration system: coalescing pre-filter (removes >99.9% of particles ≥0.01 µm), desiccant-based moisture removal stage, and activated carbon hydrocarbon trap—delivering final gas impurity levels ≤0.1 ppm total volatile hydrocarbons (TVHC), meeting ASTM D6166 and USP specifications for LC-MS carrier and auxiliary gases.
- Modular architecture enables tool-free access to filter cartridges and membrane modules, supporting scheduled maintenance intervals aligned with ISO/IEC 17025 internal calibration and preventive maintenance protocols.
Sample Compatibility & Compliance
The KL70-1 is validated for direct coupling with major LC-MS platforms including Thermo Fisher Scientific (Orbitrap, Q Exactive series), Agilent Technologies (6470, 6550 Q-TOF), Waters (Xevo TQ-S, Vion IMS QTof), and SCIEX (TripleTOF 6600). Its 0–7 bar adjustable output pressure range accommodates both nebulizer gas (typically 30–50 psi) and drying/collision gas (up to 100 psi) requirements across ESI, APCI, and APPI ion sources. The system complies with IEC 61000-6-3 (EMC emissions), IEC 61000-6-2 (immunity), and meets GLP/GMP-relevant design criteria—including audit-trail-capable event logging (via optional RS485/Modbus interface) and configurable alarm thresholds for pressure, purity deviation, and filter saturation. All wetted materials conform to USP Class VI biocompatibility and FDA 21 CFR Part 11 data integrity guidelines when integrated with compliant LIMS or CDS software.
Software & Data Management
While the KL70-1 operates autonomously via embedded microcontroller logic, it supports optional digital integration through Modbus RTU over RS485. This enables remote monitoring of real-time parameters—including inlet pressure, outlet pressure, flow rate, compressor runtime, and filter service countdown—within enterprise laboratory information management systems (LIMS) or chromatography data systems (CDS). Event logs record timestamped occurrences such as startup/shutdown cycles, pressure excursions, and maintenance alerts, providing traceable records suitable for regulatory audits under ISO/IEC 17025 Clause 7.7 and FDA 21 CFR Part 11 Subpart B. No proprietary software installation is required; configuration and diagnostics are accessible via intuitive front-panel LCD interface with multilingual support (English, German, Japanese).
Applications
Primary deployment focuses on LC-MS nitrogen supply for ion source cooling, desolvation, and collision-induced dissociation (CID) gas—where stable flow, pressure, and purity directly impact signal-to-noise ratio, mass accuracy, and quantitative reproducibility. Secondary use cases include inert atmosphere generation for glove boxes, blanketing during sample preparation, nitrogen purge in HPLC mobile phase degassing, and controlled-atmosphere packaging validation in food safety labs. With its scalable 70 L/min capacity and robust 0–7 bar pressure headroom, the KL70-1 also supports pilot-scale applications in electronics manufacturing (reflow soldering inerting), pharmaceutical lyophilization support, and modified atmosphere packaging (MAP) process development—provided downstream pressure regulation and additional point-of-use filtration are implemented per ISO 8573-7.
FAQ
What is the expected service life of the hollow fiber membrane module under continuous operation?
With proper upstream air filtration and adherence to recommended maintenance intervals (every 6–12 months depending on ambient air quality), the membrane stack maintains ≥99.5% purity performance for ≥15,000 operating hours.
Does the KL70-1 require external cooling or ventilation?
No. The unit employs passive convection cooling and requires only 10 cm clearance on all sides for thermal dissipation—no dedicated HVAC ducting or chilled water connection is needed.
Can the output pressure be regulated independently of flow demand?
Yes. An integrated precision pressure regulator allows fine-tuning within the 0–7 bar range, with ±0.1 bar repeatability across full flow spectrum.
Is the system compatible with nitrogen-demanding GC-MS applications?
While primarily optimized for LC-MS, the KL70-1 may serve as makeup or collision gas source in select GC-MS configurations; however, users must verify compatibility with detector-specific purity and dew point requirements prior to deployment.
How is filter replacement tracked and documented?
Filter service intervals are calculated based on cumulative runtime and pressure differential monitoring; alerts appear on the LCD display and can be exported via Modbus for inclusion in electronic maintenance logs.
