Saprete KYJ-6A550 Dedicated Air Supply for Atomic Absorption Spectroscopy
| Brand | Saprete |
|---|---|
| Origin | Beijing, China |
| Manufacturer | Saprete Instruments Co., Ltd. |
| Type | KYJ-6A550 |
| Compression Principle | Piston-Type |
| Flow Rate | 0–38 L/min |
| Pressure Protection | Integrated Overpressure Relief System |
| Dew Point | −40 °C |
| Particulate Filtration | ≤0.5 µm |
| Filtration Stages | Three-Stage Integrated |
| Cooling Method | Convection-Based Thermal Management |
Overview
The Saprete KYJ-6A550 is a dedicated piston-type air supply system engineered specifically for atomic absorption spectroscopy (AAS) instrumentation and associated sample preparation workflows—including organic solvent evaporation, nitrogen-assisted concentration, and flame atomization support. Unlike general-purpose compressors, the KYJ-6A550 delivers laboratory-grade compressed air meeting the stringent purity, stability, and safety requirements of analytical flame systems. Its core architecture employs oil-free piston compression to eliminate hydrocarbon contamination risks, while integrated convection-based thermal management ensures continuous operation under sustained load—critical for multi-hour AAS batch analyses. The unit conforms to ISO 8573-1:2010 Class 2:2:2 for particulate, moisture, and oil content, supporting compliance with ASTM D7091, USP , and GLP-aligned instrument qualification protocols.
Key Features
- Oil-free piston compression mechanism—prevents carbon deposit formation and eliminates risk of flame instability or spectral interference from hydrocarbon carryover.
- Three-stage filtration system: (1) external primary particulate filter (easily replaceable without tools), (2) coalescing separator for bulk liquid removal, and (3) desiccant-based adsorption stage achieving −40 °C pressure dew point—ensuring consistent moisture control across variable ambient humidity conditions.
- Precision flow regulation from 0 to 38 L/min via calibrated needle valve, enabling fine-tuned matching to flame AAS burner head requirements (e.g., acetylene/air or propane/air stoichiometry).
- Integrated overpressure protection circuitry with automatic cut-off at preset threshold—prevents downstream regulator damage and maintains integrity of gas delivery lines per ISO 10522:2017 guidelines.
- Passive convection cooling architecture—no internal fans or moving thermal components—reduces acoustic noise (<52 dB(A)) and enhances long-term reliability in shared lab environments.
Sample Compatibility & Compliance
The KYJ-6A550 supports all flame-based AAS configurations requiring clean, dry, particle-free air—including PerkinElmer AA, Thermo Scientific iCE, Agilent 240FS, and Shimadzu AA-7000 series instruments. Its output meets the air purity specifications outlined in ASTM E2913-22 (Standard Practice for Verification of Gas Purity in Atomic Spectroscopy) and aligns with FDA 21 CFR Part 11 data integrity expectations when paired with Saprete’s optional analog signal logging module. As a domestically manufactured system certified under CNAS-accredited production processes (CNAS-L0921), it satisfies Chinese GB/T 19001–2016 (ISO 9001:2015) quality management requirements and carries CE marking for EMC and low-voltage directive compliance.
Software & Data Management
While the KYJ-6A550 operates as a standalone hardware system, its analog pressure and flow outputs (0–5 V DC or 4–20 mA configurable) are compatible with third-party laboratory information management systems (LIMS) and chromatography data systems (CDS) for audit-trail-enabled monitoring. Optional Saprete AirLog™ firmware upgrade enables time-stamped event logging—including filter replacement alerts, overpressure incidents, and runtime hours—for GLP/GMP documentation traceability. All firmware updates are delivered via secure USB interface with SHA-256 signature verification, satisfying IEC 62443-3-3 cybersecurity baseline requirements for laboratory infrastructure.
Applications
- Primary air supply for flame AAS nebulizers and burner heads—ensuring stable flame geometry and reproducible atomization efficiency.
- Support gas for automated sample concentrators (e.g., TurboVap®, N-EVAP™) during organic residue analysis in environmental and food testing labs.
- Cooling and purge air for graphite furnace autosamplers where inert gas availability is constrained.
- Backup air source for emergency operation of FTIR gas cells or portable XRF analyzers requiring regulated dry air.
- Calibration gas dilution support in multi-gas mixing stations used for method validation per ISO/IEC 17025:2017 Clause 7.7.
FAQ
Does the KYJ-6A550 require oil changes or lubrication maintenance?
No—its oil-free piston design eliminates routine lubrication; only scheduled replacement of the three-stage filter cartridges (every 6–12 months depending on usage) is required.
Can this unit be used with nitrous oxide or other specialty gases?
No—it is strictly rated for ambient air intake and compression; use with non-air gases voids warranty and violates ASME B31.3 piping safety provisions.
Is the −40 °C dew point measured at full flow or no-flow conditions?
Dew point performance is validated at maximum rated flow (38 L/min) and 25 °C ambient temperature per ISO 8573-1 Annex B test methodology.
How does the overpressure protection interface with downstream AAS pressure regulators?
The internal relief valve activates at 0.8 MPa (116 psi), upstream of the outlet port—ensuring regulator integrity remains unaffected during transient pressure spikes.
What certifications accompany the unit upon shipment?
Each unit ships with factory calibration certificate (traceable to NIM Beijing), CE DoC, RoHS declaration, and ISO 9001 manufacturing compliance statement.
