Sartorius BSA623S Precision Balance – 620 g / 0.001 g

Overview

The Sartorius BSA623S is a high-performance precision balance engineered for routine laboratory weighing tasks requiring reliable 0.001 g readability and robust operational consistency. Designed according to the fundamental principles of electromagnetic force compensation (EMFC), this balance delivers stable, drift-free measurements by precisely balancing the gravitational force acting on a sample against a controlled electromagnetic counterforce. Its single-piece monolithic sensor architecture—combined with a 40 MHz microcontroller (MC1) and advanced SMT-based circuitry—ensures rapid stabilization (<1 second), exceptional signal integrity, and long-term metrological stability. The BSA623S is classified as a Class II precision balance per OIML R 76-1 and meets ISO 9001 calibration traceability requirements when used with certified reference masses. It is widely deployed in QC laboratories, pharmaceutical manufacturing environments, academic research settings, and materials testing facilities where reproducible mass determination is critical to process control and regulatory documentation.

Key Features

• Electromagnetic force compensation (EMFC) transducer with super-dual-lever monolithic design for enhanced linearity and load distribution
• Dynamic temperature compensation algorithm actively corrects for thermal drift across ambient conditions (10–40 °C)
• Four-stage anti-vibration system integrated into the base structure minimizes influence from floor-borne mechanical disturbances
• Five-sided draft shield with static-dissipative glass panels reduces electrostatic interference and improves operator visibility
• Front-mounted spirit level and adjustable stainless-steel feet ensure rapid, precise leveling without tools
• Internal calibration (BSA623S-CW variant) with motorized built-in weight; external calibration supported via standard weights (BSA623S)
• Overload protection up to 150% of maximum capacity with audible and visual alert
• RS232 serial interface compliant with GLP data output protocols—including date/time stamp, operator ID, and balance status flags

Sample Compatibility & Compliance

The BSA623S accommodates samples up to 620 g on its 115 mm diameter stainless-steel weighing pan. Its low-profile draft shield permits handling of tall or irregularly shaped containers, while the optional lower hook enables below-pan density determination and magnetic susceptibility measurements. The balance complies with ISO/IEC 17025:2017 requirements for measurement uncertainty estimation and supports audit-ready documentation under FDA 21 CFR Part 11 when paired with validated Sartorius LabX software. All firmware operations—including calibration logs, error history, and parameter changes—are timestamped and non-erasable, fulfilling GLP/GMP data integrity mandates. Electromagnetic compatibility conforms to IEC 61326-1:2013 (industrial environment), and electrical safety meets IEC 61010-1:2010 standards.

Software & Data Management

While the BSA623S operates autonomously via its intuitive front-panel interface, it integrates seamlessly with Sartorius’ LabX™ standalone software for centralized method management, automated reporting, and electronic signature support. Raw weighing data—including gross/net/tare values, statistics (n, mean, SD), and environmental metadata—is exported in CSV or PDF format with full traceability. The RS232 interface supports bidirectional communication for remote command execution (e.g., tare, print, zero) and real-time data streaming into LIMS or MES platforms. All data exports include mandatory GLP fields: instrument ID, user login, calibration status, ambient temperature/humidity (when connected to optional sensors), and unique measurement ID.

Applications

• Pharmaceutical formulation: active ingredient dispensing, excipient blending verification, and tablet weight uniformity testing per USP <41>
• Chemical quality control: reagent preparation, titrant standardization, and batch release testing
• Food & beverage labs: moisture content analysis (via loss-on-drying workflows), nutritional labeling compliance, and portion control validation
• Materials science: powder density determination, catalyst loading accuracy, and polymer additive dosing
• Academic teaching labs: stoichiometric experiments, gravimetric analysis, and analytical chemistry coursework requiring sub-milligram resolution

FAQ

What is the difference between BSA623S and BSA623S-CW?
The “CW” suffix denotes internal calibration capability via a motor-driven built-in weight; the standard BSA623S requires external calibration using certified masses.
Does the BSA623S support density determination?
Yes—when equipped with the optional lower hook and sinker kit, it performs solid and liquid density measurements using Archimedes’ principle.
Is the balance compatible with Windows/macOS data acquisition systems?
Yes—via RS232-to-USB adapters and Sartorius’ free Data Transfer Software or third-party applications supporting ASCII-based serial protocols.
How often should the balance be calibrated?
Daily verification with a check weight is recommended before use; full calibration frequency depends on usage intensity, environmental stability, and quality system requirements (typically weekly to monthly per ISO/IEC 17025).
Can the BSA623S be used in regulated GxP environments?
Yes—when operated with documented procedures, calibrated traceable standards, and paired with LabX software for audit trail generation, it satisfies ALCOA+ data integrity criteria.