Sartorius BSA124S and BSA124S-CW Advanced Analytical Balances
| Brand | Sartorius |
|---|---|
| Origin | Germany |
| Model | BSA124S / BSA124S-CW |
| Maximum Capacity | 120 g |
| Readability | 0.1 mg |
| Repeatability | ≤0.1 mg |
| Linearity | ≤0.2 mg |
| Pan Size | 90 mm diameter |
| Calibration | External (BSA124S) or Internal (BSA124S-CW) |
Overview
The Sartorius BSA124S and BSA124S-CW are high-precision analytical balances engineered for routine and regulated laboratory environments where accuracy, traceability, and operational reliability are critical. Based on electromagnetic force compensation (EMFC) technology, these balances deliver stable, drift-resistant measurements under variable ambient conditions—including minor air currents, temperature fluctuations, and vibration—common in shared lab spaces. With a maximum capacity of 120 g and readability of 0.1 mg (100 µg), the BSA series meets the performance requirements for ISO/IEC 17025-compliant weighing tasks, quantitative sample preparation, titration standardization, and pharmaceutical formulation checks. The BSA124S-CW variant integrates an internal calibration mechanism with motor-driven weights and automatic temperature-triggered recalibration, while the BSA124S relies on external calibration using certified Class E2 or F1 weights—both configurations support full audit trail generation when connected to compliant software.
Key Features
- Electromagnetic force compensation (EMFC) transducer ensures long-term stability and minimal warm-up time (<60 seconds to full specification)
- Large 90 mm stainless steel weighing pan optimized for volumetric glassware and standard sample containers
- Integrated draft shield with front sliding door and side access ports—compatible with standard 100 mm height enclosures
- RS232 and USB interfaces for direct connection to PCs, printers, or LIMS; optional Ethernet module available for network integration
- GLP/GMP-compliant data output including date/time stamp, operator ID, balance ID, net/gross/tare values, and calibration status
- Auto-zero tracking and dynamic filtering algorithms reduce noise from environmental perturbations without compromising response time
Sample Compatibility & Compliance
The BSA124S and BSA124S-CW accommodate a wide range of sample forms—from powders and granules to liquids in tared vials and crucibles—without requiring specialized fixtures. Their compact footprint (210 × 320 × 310 mm H) allows seamless integration into fume hoods, glove boxes, and QC workstations. Both models comply with international metrological standards including OIML R76-1 (2021), EN 45501, and ANSI/NCSL Z540-1. For regulated industries, they support 21 CFR Part 11–compliant electronic records when used with Sartorius LabX® software (version 3.9+), enabling role-based user authentication, electronic signatures, and immutable audit trails. Routine verification protocols align with USP , EP 2.1.6, and ASTM E898–22 for analytical balance qualification.
Software & Data Management
Sartorius LabX® software provides full lifecycle management for BSA-series balances, including automated calibration scheduling, uncertainty calculation per EURACHEM/CITAC guidelines, and customizable report templates compliant with ISO 17025 clause 7.7. Data export supports CSV, PDF, and XML formats with embedded metadata (e.g., environmental sensor readings if linked to optional Temp/Humidity modules). Local storage retains ≥10,000 weighing events with timestamps and operator IDs. Optional RFID reader integration enables sample tube identification during multi-step workflows, reducing transcription errors in analytical chemistry and quality control labs.
Applications
- Pharmaceutical: Active pharmaceutical ingredient (API) dispensing, reference standard weighing, dissolution test sample prep
- Academic Research: Gravimetric analysis, catalyst loading, polymer synthesis stoichiometry verification
- Food & Beverage: Nutrient labeling compliance (FDA 21 CFR 101.9), moisture content determination by loss-on-drying
- Environmental Testing: Filter weighing for PM2.5/PM10 analysis per EPA Method IO-4.2
- Materials Science: Powder density measurement, coating thickness validation via mass-thickness correlation
FAQ
What is the difference between the BSA124S and BSA124S-CW models?
The BSA124S requires external calibration using traceable weights, whereas the BSA124S-CW features an integrated motorized calibration system with automatic temperature-compensated recalibration.
Does this balance meet ISO/IEC 17025 requirements for accredited laboratories?
Yes—when operated within specified environmental conditions (20 ± 2 °C, ≤50 % RH, no drafts), and paired with documented calibration certificates and uncertainty budgets, it satisfies clause 6.4.8 for measurement equipment.
Can the balance be validated for GxP environments?
Absolutely—the hardware design, firmware versioning, and LabX® software architecture support IQ/OQ/PQ execution per ASTM MNL13 and EU Annex 15 guidelines.
Is the weighing pan removable for cleaning?
Yes, the stainless steel pan is tool-free detachable and autoclavable up to 121 °C for sterile applications.
How is traceability maintained during daily use?
Each weighing event includes embedded metadata (time, operator, balance ID, calibration status), and LabX® generates raw data files with SHA-256 checksums for integrity verification.
