AND BM-5DH Micro Analytical Balance

AND BM-5DH Micro Analytical Balance

AND BM-5DH Micro Analytical Balance: Detailed Description & Specifications

The AND BM-5DH is a premium micro analytical balance engineered for the extreme precision and rigorous standards required in Hallmarking Centres and other high-stakes environments. It offers dual-range precision (2.1g x 0.001mg and 5.2g x 0.01mg) to accommodate a wide variety of precious metal and stone weighing tasks. With an integrated, fanless ionizer to eliminate static and a comprehensive suite of data integrity features, the BM-5DH ensures unwavering accuracy, compliance, and traceability for the official assaying and hallmarking process.

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Key Features & Capabilities

• Dual-Range Ultra-Micro Precision: Provides two high-sensitivity weighing ranges: 2.1 g with 0.001 mg readability for the most critical measurements and 5.2 g with 0.01 mg readability for larger items, offering exceptional flexibility.

• Integrated Static Elimination: A built-in fanless ionizer instantly neutralizes electrostatic charges on samples and containers, a critical feature for achieving stable and accurate readings with low-mass, non-conductive materials like jewelry and gemstones.

• Advanced Environmental Compensation & Calibration:

  • Automatic Self-Calibration (FACT): Ensures accuracy by automatically calibrating in response to ambient temperature changes.

  • Embedded Environmental Sensors: Continuously monitor internal temperature, humidity, and atmospheric pressure for superior measurement stability.

  • Automatic Repeatability Test: Allows for on-site precision verification using the internal weight, ensuring ongoing compliance with quality standards.

• Compliance-Ready Data Management:

  • GLP/GMP/GCP/ISO Compliant Output: Prints or exports all data with essential metadata (time, date, sample ID, user ID) for full audit trails.

  • Standard Data Logger: The included AD-1688 data logger facilitates easy data recording and transfer.

• Optimized for Efficient Workflow:

  • Anti-Static Breeze Break: Features a transparent, evaporated metal coating on the glass to dissipate static and improve visibility.

  • Interlockable Sliding Doors: Enable smooth, two-handed operation while allowing the doors to be locked in an open position for cleaning or setup.

  • Multiple Weighing Units: Supports a wide array of units including g, mg, oz, ozt, ct, dwt, and grain, with optional tael or tola.

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Technical Specifications

Model: AND BM-5DH Micro Analytical Balance

Weighing Specifications

• Capacity (Dual Range): 2.1 g / 5.2 g

• Readability (Dual Range): 0.001 mg (1 µg) / 0.01 mg (10 µg)

• Repeatability (Standard Deviation):

  • 0.004 mg (for 1 g load)

  • 0.01 mg

• Linearity: ±0.010 mg / ±0.02 mg

• Minimum Weight (Typical): 5.0 mg

Physical & Environmental

• Weighing Pan: Ø25 mm

• Breeze Break: Standard anti-static glass breeze break (AD-1676 medium) included.

Calibration & Sensors

• Calibration: Internal Automatic Self-Calibration

• Internal Sensors: Temperature, Humidity, Atmospheric Pressure

Display & Interface

• Display: Reverse Backlit LCD

• Standard Interfaces: RS-232C, Quick USB

• Software: Windows Communication Tools (WinCT) included.

Special Functions

• Modes: Weighing, Counting, Percent, Comparator, Density (with optional kit)

• ACAI Function: Automatic Counting Accuracy Improvement

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Standard Accessories

The BM-5DH comes complete with a comprehensive set of accessories for immediate operation in a hallmarking environment:

• AD-1676 Tabletop Breeze Break (Medium)

• AD-1688 Weighing Data Logger

• AD-1689 Tweezers for Calibration Weight

• AX-BM-033 Dust Cover for Storage

• Special Weighing Pans/Holder

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Application Note: The BM-5DH is ideally suited for the precise weighing of precious metals (gold, silver, platinum), gemstones, and diamonds in official hallmarking centres, jeweler workshops, and assay offices. Its compliance features ensure that all weight measurements are legally and auditably traceable. For optimal performance, install the balance on a stable, vibration-free bench in a draft-free location.