A&D Weighing BM-5 Series Micro Balance with Internal Calibration and Static Eliminator, 5.2 g x 0.001 mg

The A&D BM-5 provides a 5.2 g maximum capacity with 0.001 mg (1 microgram) readability, making it suitable for extremely small and sensitive samples. A&D specifies repeatability of approximately 0.0012 mg at a 1 g load and linearity of ±0.010 mg. This performance makes the BM-5 well suited for pharmaceutical research, environmental analysis, filter weighing, material science, and other demanding micro-weighing applications.

Yes. The BM-5 features internal calibration, allowing users to perform sensitivity adjustment using its built-in calibration mass rather than routinely handling an external calibration weight. Internal calibration is especially valuable at microgram-level resolution, where maintaining stable and consistent balance performance is critical. DSC specifically lists the BM-5 as an internally calibrated model.

The BM-5 incorporates a built-in fanless ionizer designed to neutralize static electricity on samples and containers. Static charge can significantly affect microgram-level measurements, especially when weighing filters, powders, plastics, or other nonconductive materials. The fanless design helps eliminate static without generating airflow that could destabilize such sensitive measurements.

A&D lists a typical minimum weight of approximately 2.0 mg for the BM-5 under specified measurement conditions. This value is based on repeatability performance under favorable conditions; the appropriate minimum sample weight in actual use can depend on the laboratory's accuracy requirements, environmental conditions, SOPs, and applicable regulations.

The BM-5 has an approximate 10-second stabilization time when set to FAST mode under suitable operating conditions. Considering its extremely fine 0.001 mg readability, this response time supports efficient micro-weighing while maintaining the sensitivity needed for demanding laboratory measurements.