Description

A&D Scale PN BM-20

A&D Scale PN BM-20 is a professional microbalance with internal calibration and a built-in fan-less ionizer, designed for ultra-precise weighing in laboratories, pharmaceutical facilities, research institutions, environmental analysis, chemical testing, quality control, cannabis testing, manufacturing, and other demanding scientific applications. The BM-20 provides a 22 g maximum capacity with 0.000001 g (0.001 mg / 1 µg) readability across its full weighing range, delivering true microgram-level measurement performance while offering significantly more capacity than lower-capacity microbalances.

A major advantage of the A&D BM-20 is its built-in fan-less ionizer, which helps neutralize static electricity that can interfere with microgram-level weighing. Electrostatic charges on powders, plastics, filters, containers, pharmaceutical ingredients, films, and other materials can cause unstable readings and measurement errors. The integrated ionizer helps reduce static interference directly within the weighing workflow, while its fan-less design avoids introducing additional air movement around extremely sensitive samples. The anti-static glass breeze break further helps reduce the effects of electrostatic interference.

The BM-20 provides a 22 g capacity, 0.001 mg readability, 0.0025 mg repeatability at 1 g, ±0.010 mg linearity, and a typical minimum weight of approximately 3.0 mg under A&D’s stated USP Chapter 41 methodology. Stabilization time is approximately 10 seconds when configured for FAST response. These specifications make the BM-20 particularly well suited for pharmaceutical research, elemental analysis, environmental testing, filter weighing, chemical analysis, reference-material preparation, and other applications requiring dependable microgram-level measurements.

Designed for extremely sensitive measurements, the BM-20 features a Ø25 mm weighing pan within a protected weighing chamber engineered to minimize the effects of drafts, vibration, static electricity, and other environmental disturbances. The large working space supports a variety of sample vessels and specialized weighing procedures, while interlockable sliding doors allow efficient access to the weighing chamber. A&D also offers specialized accessories for applications such as filter weighing and microfuge tube measurement.

The BM-20 includes motor-driven internal calibration with automatic self-calibration, helping maintain weighing accuracy as environmental conditions change. One-touch internal calibration simplifies routine accuracy management without requiring users to regularly handle separate external calibration weights. Automatic response adjustment also allows the balance to optimize its behavior for environmental conditions involving drafts and vibration, supporting more stable measurements in demanding laboratory environments.

For professional laboratory workflows, the BM-20 supports multiple measurement applications, including standard weighing, piece counting, percentage weighing, density determination, and specific-gravity measurement. The BM Series also includes data-memory and compliance-oriented capabilities designed to support GLP, GMP, GCP, and ISO workflows, making the BM-20 suitable for regulated laboratories and quality-focused organizations that require traceable weighing and calibration records.

Standard RS-232C and USB connectivity allows the BM-20 to communicate with compatible computers, printers, laboratory software, and data-collection systems. These interfaces help streamline weighing-data transfer and documentation while supporting integration into professional laboratory workflows. Combined with its microgram resolution, internal calibration, integrated static-control technology, and protected weighing environment, the BM-20 provides a comprehensive solution for laboratories requiring reliable ultra-precision measurements.

Whether you’re performing pharmaceutical research, elemental analysis, environmental testing, chemical analysis, laboratory sample preparation, cannabis testing, filter weighing, static-sensitive material measurement, or other ultra-precision scientific work, the A&D Scale PN BM-20 delivers the sensitivity, capacity, and advanced functionality required for demanding micro-weighing applications. Its 22 g capacity, 0.001 mg (1 µg) readability across the full weighing range, built-in fan-less ionizer, automatic internal calibration, Ø25 mm weighing pan, anti-static weighing chamber, and professional connectivity make it a powerful solution for microbalance applications.

BM family micro balance, 22 g x 0.001 mg with RS-232C and built-in static eliminator 120V

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