A&D Weighing BM-5D Series Micro Balance with Internal Calibration and Static Eliminator, 5.2/2.1 g x 0.01/0.001 mg

The BM-5D provides 0.001 mg (1 microgram) readability up to 2.1 g and 0.01 mg readability up to its full 5.2 g capacity. When the displayed weight exceeds 2.1 g, the balance automatically switches to the 0.01 mg range. A&D's Smart Range function allows the 0.001 mg range to be restored by re-zeroing when appropriate. This gives laboratories microgram sensitivity for very small samples while retaining additional capacity when needed.

Yes. The BM-5D features internal calibration with an automatic self-calibration function that can respond to temperature variations. This reduces the need to routinely handle external calibration weights and helps support consistent measurements in sensitive micro-weighing applications.

The BM-5D includes a built-in fanless ionizer designed to neutralize electrostatic charge on samples and containers. Static electricity can significantly influence microgram-level measurements, particularly with filters, powders, plastics, and other nonconductive materials. The fanless design reduces static without introducing additional airflow that could disturb the measurement.

A&D specifies a typical minimum weight of 5.0 mg, referenced to USP Chapter 41 criteria. The appropriate minimum sample weight in actual use can vary with environmental conditions, balance installation, laboratory SOPs, and required measurement uncertainty, so users should verify minimum weight for their specific application.

A&D specifies an approximate stabilization time of 10 seconds in the 0.001 mg range and 8 seconds in the 0.01 mg range when operating in FAST mode under suitable conditions. This allows the BM-5D to combine extremely fine microgram resolution with practical response times for repetitive laboratory weighing.