Ion BM Series, A&D Weighing Micro/Semi-Micro Balance

As of: Friday, August 29, 2025

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Weighing Units:
Carat, pennyweight, troy ounce (see technical manual for complete listing)

Operating Modes:
Percentage, counting

Power:
120/240 AC adapter

Stabilization Time:
BM-20: 10 seconds (typically)
BM-22: 8 to 10 seconds
BM-252: 8 seconds

Calibration Weight:
BM-20 and BM-22: 20 g
BM-252: 200 g

Temperature:
Operating:
41 °F to 104 °F (5 °C to 40 °C)

Humidity:
85% RH or less (no condensation)

Est. Weight:
22 lb (10 kg) ships by motor freight

Warranty:
Five-year limited

Return Policy:
A&D Weighing standard policy -
restock fee may apply

Model	Capacity	Readability	Repeatability	Linearity	Pan Size	Dimensions	Part Number
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

Part #	Description

150762	Balance,A&D BM-20 Micro Balance, 22 g x 0.001 mg, RS-232C, 120V/220V AC Adapter
150763	Balance,A&D BM-22 Micro Balance, 5.1g/22g x 0.001 mg, RS-232C, 120V/220V Adapter
150765	Balance,A&D BM-252 Semi-micro Balance, 250 g x 0.01 mg, RS-232C, 120V/220V Adapter

Part #	Description

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