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BM 22

Readability to 1µg (0.001 mg)
Built-in Fanless Ionizer Standard
Large Weighing Chamber
Automatic Response Adjustment
Automatic Self Calibration
AD-1688 Data Logger included


Models Number BM-22
Weighing capacity 5.1 g / 22 g **
Minimum weighing value 0.001 mg / 0.01 mg
Repeatability/Std Dev 0.004 mg (for 1 g) / 0.01 mg
Linearity ±0.010 mg / ±0.02 mg
Stabilization Time (set to FAST) Approx. 10 secs / 8 secs
Sensitivity Drift (10°C-30°C) ±2ppm/°C (when automatic self calibration is not used)
Operating temperature 5°C to 40°C (41°F to 104°F), 85%RH or less (non-condensing)
Display Refresh rate 5 times / second or 10 times / second
Measurement Units (Display mode) g, mg, oz, ozt, ct, momme, dwt, GN, tael, tola, messghal, pieces (counting mode), % (percent mode), Specific gravity
Counting mode Minimum unit mass = 0.1mg / Number of samples = 10, 25, 50 or 100 pieces
Percent mode Minimum 100% ref. mass = 10.0 mg / Minimum 100% display = 0.01%, 0.1%, 1% (depends on the reference mass stored)
Internal Memory 200 sets weighing data / 100 sets with date & time / 50 sets of calibration data
External Data Logger Store up to 5,000 weighing results with date & time to AD-1688 (standard)
Data Output 2GLP / GMP / GCP / ISO compliant. Outputs: balance manufacturer, model, s/n, balance identifi cation number, data, time of calibration, mass used, and space for signature.
Standard interface RS-232C, Quick USB, External key plug for optional foot switch (SW:128)
Internal Calibration Motor-driven internal calibration
External Calibration masses (g) 20, 10, 5, 2, 1
Ionizer electrode pin life Approx. 10,000 hours of continuous use. (User replaceable)
Weighing pan diameter 25 mm (50 mm, 95 mm for weighing filters)
Power consumption Approx. 30 VA (supplied by the AC adapter)
External dimensions / Weight 259 (W) x 466 (D) x 326 (H) mm / Approx.
Standard accessories AC adapter

Instruction manual


Weighing Data Logger (AD-1688)

Long Tweezers for calibration mass (AD-1689)

Standard Tweezers. BM-20/22 also includes two filter weighing pans

microfuge holders and 3 sizes of disposable pans.


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