

Key Highlights
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Built-in fanless static eliminator for reliable weighing
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Anti-static glass chamber minimizes electrostatic interference
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Spacious weighing chamber with easy access
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Motorized built-in calibration weight ensures accuracy
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One-touch environmental filters for fast adjustments
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Full GLP/LIM/ISO compliance with time/date stamped data
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RS-232C & WinCT® software included for connectivity
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Ships with AD-1688 Weighing Data Logger
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Equipped with underweigh hook for advanced applications
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Backed by five-year limited warranty
The A&D Ion BM Series Micro and Semi-Micro Balances are designed for ultra-precise weighing in laboratories where static and environmental factors can impact results.
With a built-in fanless static eliminator and anti-static glass chamber, the BM Series minimizes errors caused by electrostatic charges. A motorized internal calibration system provides hassle-free accuracy, while the included AD-1688 Data Logger ensures compliance with GLP/LIM/ISO standards.
Whether for pharmaceutical, research, or advanced material testing, the BM Series delivers stable, high-resolution performance with capacities up to 250 g and readability as fine as 1 µg.
Technical Specifications
Feature | Specification |
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Weighing Units | Carat, pennyweight, troy ounce (additional in manual) |
Operating Modes | Weighing, percentage, counting |
Power | 120/240 V AC adapter |
Stabilization Time | BM-20: ~10 sec / BM-22: 8–10 sec / BM-252: ~8 sec |
Calibration Weight | BM-20, BM-22: 20 g / BM-252: 200 g |
Operating Temp. | 41 °F to 104 °F (5 °C to 40 °C) |
Humidity | ≤ 85% RH, non-condensing |
Estimated Weight | 22 lb (10 kg), ships via motor freight |
Warranty | Five-year limited |
Return Policy | A&D Weighing standard (restock fee may apply) |
Available Models
Model | Capacity | Readability | Repeatability | Linearity | Pan Size | Dimensions (W × D × H) | Part # |
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BM-20 | 22 g | 0.000001 g | 0.0025 mg | ±0.010 mg | Ø 0.98 in (25 mm) | 10.2 × 18.3 × 12.8 in (259 × 466 × 326 mm) | 150762 |
BM-22 | 22 g / 5.1 g | 0.00001 g / 0.000001 g | 0.004 mg / 0.01 mg | ±0.010 mg / 0.02 mg | Ø 0.98 in (25 mm) | 10.2 × 18.3 × 12.8 in (259 × 466 × 326 mm) | 150763 |
BM-252 | 250 g | 0.00001 g | 0.03 mg | ±0.010 mg | Ø 0.98 in (25 mm) | 10.2 × 18.3 × 12.8 in (259 × 466 × 326 mm) | 150765 |
Why Choose the Ion BM Series?
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Electrostatic issues eliminated with integrated fanless ionizer
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Ultimate precision with 1 µg readability on select models
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Data compliance made easy with included AD-1688 Data Logger
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Built for demanding labs requiring accuracy, reliability, and GLP/ISO traceability
Contact us!
Free Shipping: Available across 48 continental USA. Extra charges may apply for residential, farm, or rural areas.
Express Shipping: Overnight and faster shipping options available at additional costs. Quotes obtainable via email.
Delivery Time: Typically 5 to 7 business days, varying by location and external conditions.
Tracking Information: Provided via email upon shipment. Accessible through account login. Additional information available upon request.
Return Policy: 15-day return period for unused, original condition products. A 25% restocking fee applies. Buyer covers original and return shipping costs.
Customer Support: Contact at (844)-735-5386 or info@selletonscales.com for queries or concerns about shipping.