Sartorius BSA223S-CW Advanced Precision Balance with Internal Motorized Calibration

Overview

The Sartorius BSA223S-CW is a high-performance precision balance engineered for laboratories requiring traceable, reproducible mass measurements in routine quality control, formulation, and analytical workflows. Based on electromagnetic force compensation (EMFC) technology, it delivers stable, drift-resistant weighing results under variable environmental conditions—including minor air currents, temperature fluctuations, and vibration-prone benchtop environments. With a maximum capacity of 220 g and readability of 1 mg, the BSA223S-CW meets the performance criteria defined in USP for Class II balances and satisfies linearity and repeatability requirements per ISO 17025 accredited calibration protocols. Its fully internal, motor-driven calibration system eliminates manual handling of external weights—reducing contamination risk and operator dependency while ensuring compliance with GLP and GMP documentation standards.

Key Features

• Electromagnetic force compensation sensor architecture delivering high long-term stability and minimal zero drift.
• Motorized internal calibration with single-button initiation—fully traceable via time-stamped audit log stored in non-volatile memory.
• Backlit, high-contrast LCD display featuring 15 mm character height for legibility under low-light or high-glare conditions.
• Tactile membrane keypad with clearly labeled, ergonomically grouped function keys—designed to minimize misoperation in gloved-hand environments.
• Five-language menu interface (English, German, French, Spanish, Chinese) supporting intuitive, guided setup and configuration without technical documentation.
• RS-232C bidirectional serial interface standard; optional USB-to-RS232 adapter cable available for direct connection to LIMS or ELN systems.
• Integrated draft shield compatibility—designed to accept Sartorius-certified acrylic enclosures (sold separately) for microgram-level stability in sensitive applications.

Sample Compatibility & Compliance

The BSA223S-CW accommodates samples up to 220 g on its 115 mm × 120 mm stainless-steel weighing pan, optimized for uniform load distribution and thermal equilibrium. It supports static and dynamic weighing modes—including parts counting, percentage weighing, density determination (with optional kit), and net/gross/tare functions. All firmware and calibration routines comply with regulatory expectations for instrument qualification: IQ/OQ documentation templates are provided by Sartorius; calibration certificates include uncertainty budgets traceable to PTB (Physikalisch-Technische Bundesanstalt). The balance satisfies data integrity requirements per FDA 21 CFR Part 11 when used with Sartorius LabX software (optional), enabling electronic signatures, role-based access control, and full audit trail generation.

Software & Data Management

While standalone operation requires no software, the BSA223S-CW integrates seamlessly with Sartorius LabX™ Balance Software—a platform designed for networked laboratory environments. LabX enables automated data capture, real-time statistical process control (SPC), customizable report generation (PDF/CSV/Excel), and centralized instrument management across multiple sites. All weighing events—including calibration timestamps, user IDs, environmental metadata (if connected to optional temp/humidity sensors), and result flags—are logged with immutable timestamps. Data export complies with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available), supporting audit readiness for ISO 17025, ISO 9001, and pharmaceutical QA departments.

Applications

• Pharmaceutical QC labs performing assay validation, reference standard weighing, and excipient dispensing per ICH Q5C and USP .
• Chemical R&D laboratories conducting stoichiometric reagent preparation and catalyst loading where ±1 mg accuracy directly impacts reaction yield reproducibility.
• Food testing facilities executing moisture content analysis (AOAC 950.46) and nutritional labeling compliance checks.
• Academic research groups requiring reliable baseline mass data for gravimetric sorption studies, polymer synthesis, or nanomaterial dispersion quantification.
• Contract manufacturing organizations (CMOs) maintaining calibrated equipment inventories aligned with client-specific SOPs and regulatory submission requirements.

FAQ

Does the BSA223S-CW require external calibration weights?
No—the balance features a fully integrated, motor-driven internal calibration mechanism. External weights are neither required nor supported for routine calibration.
Is the RS-232 interface compatible with modern Windows/macOS systems?
Yes, using an industry-standard USB-to-RS232 adapter cable (e.g., FTDI chipset-based), the interface supports stable communication at 9600 baud, 8N1 protocol.
Can the balance be validated for GxP environments?
Yes—Sartorius provides IQ/OQ protocol templates, calibration verification kits, and 21 CFR Part 11-compliant LabX software to support full lifecycle validation.
What is the warm-up time to achieve specified repeatability?
The balance reaches operational stability within 30 minutes after power-on under ambient conditions (20–25°C, <60% RH); optimal performance is achieved after 60 minutes.
Is the display readable under UV or strong ambient lighting?
Yes—the high-contrast monochrome LCD with LED backlight maintains contrast ratios >10:1 across illumination levels from 50 lux (dim lab) to 1000 lux (sunlit workspace).