Shimadzu UX-SGM and EL-SGM Series Density Analyzers
| Brand | Shimadzu |
|---|---|
| Origin | Japan |
| Product Type | Imported Laboratory Density Analyzer |
| Models | UX-SGM Series (Large Pan & Small Pan variants), EL-SGM Series |
| Balance Capacity | 420–8,200 g (model-dependent) |
| Minimum Readability | 0.001–1 g |
| Density Resolution | 0.0001–0.001 g/cm³ |
| Density Measurement Modes | Solid Density (via Archimedean principle), Liquid Density (with optional sinker P/N 321-40580-02) |
| Built-in Density Calculation Function | Yes |
| Compliance | Designed for GLP/GMP environments |
Overview
The Shimadzu UX-SGM and EL-SGM Series Density Analyzers are precision laboratory instruments engineered for accurate, repeatable determination of material density in both solid and liquid phases. These systems integrate high-stability analytical balances with embedded density calculation algorithms, operating on the fundamental principle of Archimedes’ buoyancy method. For solids, density is derived from the ratio of air weight to buoyant weight in a reference liquid (typically distilled water at standardized temperature), corrected for air buoyancy and thermal expansion. For liquids, density is calculated using a calibrated sinker of known volume (optional accessory P/N 321-40580-02), enabling direct immersion-based measurement per ASTM D1475 and ISO 16750. The instruments are not standalone scales but purpose-built density determination platforms—each model combines mechanical balance architecture, environmental compensation logic, and application-specific firmware to minimize operator-induced error and maximize inter-laboratory reproducibility.
Key Features
- Integrated density computation engine: Eliminates manual calculation errors by automating buoyancy correction, temperature compensation, and unit conversion (g/cm³, kg/m³, API gravity, specific gravity).
- Dual-platform design: UX-SGM models offer large-pan (170 × 180 mm) and small-pan (108 × 105 mm) configurations to accommodate diverse sample geometries—from irregular metal castings to granular powders or fragile ceramics.
- High-resolution weighing capability: Minimum readability ranges from 0.001 g (UX-SGM-S) to 0.1 g (UX-SGM-L), supporting density resolution down to 0.0001 g/cm³ for critical quality control applications.
- Thermal drift mitigation: Internal temperature sensors and real-time ambient monitoring enable dynamic zero-point adjustment and density value stabilization under variable lab conditions.
- Modular accessory compatibility: Supports optional density kits including stainless-steel sinkers, pycnometers, sample holders, and draft shields conforming to ISO 9001 calibration traceability protocols.
Sample Compatibility & Compliance
The UX-SGM and EL-SGM analyzers accept solid samples up to 8.2 kg (UX-SGM-L) and liquids requiring volumes as low as 10 mL (with sinker immersion). Sample materials include metals, polymers, ceramics, pharmaceutical excipients, geological specimens, and food-grade powders. All models comply with JIS B 7721 (Japanese Industrial Standard for non-automatic weighing instruments) and meet essential requirements of the EU Measuring Instruments Directive (MID 2014/32/EU) for Class II accuracy. When operated with Shimadzu’s LabSolutions DA software and configured with electronic signature workflows, the systems support 21 CFR Part 11 compliance—including audit trails, user access controls, and immutable data archiving—for regulated environments in pharmaceutical, chemical, and contract testing laboratories.
Software & Data Management
Data output is compatible with Shimadzu’s LabSolutions DA (Density Analysis) software, which provides instrument control, automated report generation (PDF/CSV), and statistical process monitoring (SPC) tools. Raw mass values, temperature logs, and final density results are timestamped and stored with full metadata—including operator ID, calibration certificate number, and environmental parameters. Exported datasets retain traceability to NIST-traceable mass standards via internal calibration records. Optional network integration enables centralized data aggregation across multi-site QA/QC labs, with role-based permissions aligned with ISO/IEC 17025 documentation requirements.
Applications
These analyzers serve core functions across industrial R&D and production QC workflows: verification of alloy composition consistency in metal casting foundries; porosity assessment of sintered components in additive manufacturing; bulk density validation of battery electrode slurries; specific gravity checks of liquid electrolytes and solvents; and regulatory submission support for USP and EP 2.2.5 density testing in pharmaceutical dosage form development. Their robust architecture ensures long-term stability in high-throughput environments—particularly where daily recalibration is impractical but metrological integrity remains non-negotiable.
FAQ
Does the EL-SGM Series support liquid density measurement?
Yes, when used with the optional liquid density sinker (P/N 321-40580-02) and calibrated reference fluid.
Is external calibration required before each density test?
No—internal calibration routines and automatic zero-tracking eliminate need for frequent manual recalibration; however, periodic verification using certified weights per ISO/IEC 17025 is recommended.
Can density data be exported to LIMS?
Yes—via ASCII or CSV output protocols compatible with major laboratory information management systems (LIMS) and ERP platforms.
What temperature range is supported for density correction?
The system applies automatic thermal compensation between 15 °C and 35 °C, referencing standard water density tables per IAPWS-95 formulation.
Are service manuals and firmware updates available internationally?
Yes—Shimadzu provides multilingual technical documentation, remote diagnostic support, and firmware updates through authorized service centers in over 40 countries.
