SUNJE SXF-5004 Series Portable Energy Dispersive X-Ray Fluorescence Spectrometer

Overview

The SUNJE SXF-5004 Series is a handheld energy dispersive X-ray fluorescence (EDXRF) spectrometer engineered for rapid, non-destructive elemental analysis in field and laboratory environments. Utilizing the fundamental principle of X-ray fluorescence—where primary X-rays excite atoms in a sample, causing emission of characteristic secondary X-rays—the instrument delivers quantitative and semi-quantitative compositional data across elements from magnesium (Mg, Z = 12) to uranium (U, Z = 92). Its compact metal-ceramic X-ray tube operates over a wide voltage range (8–50 kV), enabling optimized excitation for light and heavy elements alike. The transmission-type beryllium window ensures high photon throughput while maintaining mechanical robustness and vacuum integrity. Designed for portability without compromising analytical stability, the SXF-5004 integrates real-time spectrum acquisition, on-board calibration libraries, and embedded signal processing algorithms to support consistent performance under variable ambient conditions.

Key Features

• Lightweight, ergonomic handheld design with integrated trigger-activated measurement interface for one-handed operation
• Metal-ceramic X-ray tube with selectable anode targets (W, Ti, Ag, Au, Mo, Rh) to enhance sensitivity for specific element groups
• Adjustable excitation parameters: continuous voltage control (8–50 kV) and current regulation (up to 80 µA) for tailored spectral optimization
• Air-cooled thermal management system ensuring stable tube operation during extended field sessions without external chillers or consumables
• Sub-millimeter focal spot size (≤0.8 mm FSS) enabling high spatial resolution for small-area or heterogeneous sample analysis
• Wide input voltage compatibility (7–12 VDC) supporting integration with standard portable power banks, vehicle adapters, and ruggedized battery packs
• On-device spectral deconvolution using peak-fitting algorithms compliant with ISO 12836 and ASTM E1621 methodologies

Sample Compatibility & Compliance

The SXF-5004 accommodates solid, powdered, and irregularly shaped samples—including alloys, soils, ores, polymers, coatings, and electronic components—without requiring vacuum chambers or complex sample preparation. Its open-beam geometry permits direct analysis of large or immobile objects (e.g., pipes, structural welds, archaeological artifacts). Instrument compliance aligns with international safety and performance standards: IEC 61000-6-3 (EMC emissions), IEC 61000-6-2 (immunity), and IEC 62471 (photobiological safety). While not certified for medical use, its radiation shielding meets ANSI N43.3 Class II requirements for portable XRF devices. Data output formats (CSV, .xrf, .edf) are compatible with third-party QA/QC platforms used in GLP and GMP-regulated environments, and audit trail functionality supports traceability per FDA 21 CFR Part 11 when deployed with validated software configurations.

Software & Data Management

The device runs SUNJE’s proprietary firmware v3.2+, featuring intuitive touchscreen navigation, customizable measurement protocols, and multi-layered user access control. Spectral data is stored locally with time/date stamps, GPS coordinates (when enabled), operator ID, and environmental metadata (temperature, humidity). Export options include encrypted USB transfer and Wi-Fi sync to SUNJE Cloud Analytics—a secure, ISO/IEC 27001-aligned platform supporting spectral library updates, inter-instrument calibration harmonization, and statistical process control (SPC) charting. All raw spectra retain full channel resolution (2048-channel MCA), permitting retrospective reprocessing with updated matrix correction models or empirical coefficient sets. Software validation documentation (IQ/OQ/PQ templates) is available upon request for regulated industry deployment.

Applications

• Scrap metal sorting and alloy grade verification in recycling facilities and foundries
• In-field soil screening for heavy metals (Pb, As, Cd, Cr) in environmental remediation and agricultural land assessment
• RoHS and ELV compliance testing of electronics, plastics, and coated components
• Geological exploration and mine-site grade control via rapid lithology and ore-element mapping
• Forensic material identification including glass, paint chips, and gunshot residue analysis
• Quality assurance of incoming raw materials and finished goods in manufacturing supply chains

FAQ

What elements can the SXF-5004 detect and quantify?
It detects elements from Mg (Z=12) to U (Z=92); quantification accuracy depends on matrix composition, surface homogeneity, and measurement time—typical detection limits range from 1–50 ppm for mid-Z elements under optimized conditions.
Is the instrument suitable for regulatory reporting?
Yes, when operated with certified reference materials (CRMs), validated methods (e.g., ASTM D7222), and documented calibration procedures, it supports data submission for EPA, EU REACH, and RoHS compliance frameworks.
How is radiation safety ensured during operation?
The unit incorporates dual interlock mechanisms: automatic beam shutdown upon loss of contact pressure and hardware-based dose-rate monitoring with real-time audible alerts exceeding 1 µSv/h thresholds.
Can the SXF-5004 be calibrated for specific industrial matrices?
Yes—custom calibrations for alloys, soils, or consumer products can be developed using SUNJE’s Calibration Development Kit (CDK), which includes CRM sets and regression modeling tools compliant with ISO 11097.
What maintenance is required for long-term reliability?
Annual verification of X-ray tube output stability, detector resolution (Mn-Kα FWHM), and collimator alignment is recommended; no consumables or vacuum pump servicing is needed due to the air-cooled, sealed-tube architecture.