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AND Instruments BM-22, BM Series Micro-Analytical Balances, Maximum Capacity 5.1g/22g, Readability 0.001mg/0.01mg, Pan Size 25mm With Internal Calibration
Introducing our innovative microbalance! Accurate measurement for precision weighing with micrograms readability.
Models | BM-22 5.1 g / 22 g*i | |
Capacity | ||
Readability | 0.001 mg / 0.01 mg | |
Repeatability (standard deviation) | 0.004 mg (for 1 g)/ 0.01 mg | |
Minimum weight*ii (typical) | 5.0 mg | |
Linearity | ±0.010 mg / ±0.02 mg | |
Stabilization time (typical when set to FAST) | Approx. 10 secs / 8 secs | |
Sensitivity drift | ±2 ppm/°C (10 to 30 °C/50 to 86 °F, when automatic self calibration is OFF) | |
Operating environment | 5 to 40 °C (41 to 104 °F), 85%RH or less (no condensation) | |
Display refresh rate | 5 times/sec or 10 times/sec | |
Units of measure*iii | mg (milligram), g (gram), oz (ounce), ozt (troy ounce), ct (metric carat), mom (momme), dwt (pennyweight), gr (grain), pcs (counting mode), % (percent mode), and SG (density mode) | |
Counting mode | Minimum unit mass | 0.1 mg |
Number of samples | 10, 25, 50 or 100 pieces | |
Percent mode | Minimum 100% reference mass | 10.0 mg |
% readability | 0.01%, 0.1%, 1% (depends on the reference mass stored) | |
Communication interface | RS-232C and Quick USB | |
Applicable calibration weight value | 20 g 10 g 5 g 2 g 1 g | |
Weighing pan size | Ø25 mm | |
External dimensions | 259 (W) × 466 (D) × 326 (H) mm | |
Net weight | Approx. 10 kg | |
Power supply / consumption | AC adapter / approx. 30 VA | |
Standard accessories | AD-1676 tabletop breeze break (medium) × 1*iv, Special pans (Ø50 mm and Ø95 mm) for weighing PM filters × 1 each, Three sizes of aluminum analytical pans × 10 each, AX-BM-032 microtube holder × 1, AD-1688 weighing data logger × 1, AD-1689 tweezers for calibration weight × 1, AX-BM-033 dust cover for storage × 1 |
Includes the following:

Standard Features:
Optional:
Introducing our innovative microbalance! Accurate measurement for precision weighing with micrograms readability.
How to Eliminate the Greatest Enemy of Precision Weighing
Static electricity, while often overlooked, can be a fatal source of error in precise weight measurements. With the BM Series, A&D seek in various ways to help you perform sometimes-tricky analytical weighing with simplicity and accuracy,
including the elimination of static electricity. The world of micrograms (µg) is now accessible to all researchers!
Built-in Fanless Ionizer
The internal ionizer neutralizes an electrostatically charged object instantly. Simply hold the sample in the neutralizing chamber for a second before placing it in the weighing chamber.
Anti-static Breeze Break
The thin evaporated metal coating of the breeze breaks blocks outside static electricity.
Motor-driven Internal Calibration Mass
The internal mass of the BM Series allows you to perform calibration quickly and correctly even if you are not skilled at calibrating balances using external masses.
Large Weighing Chamber for Improved Usability
To block drafts, A&D adopted a double-ring structure around the weighing pan and two vertical shields under the separation plate. This offers more space and easier operation than conventional 1 µg balances with a secondary breeze break in the chamber.
Features
- Easy, fanless elimination of static electricity using a built-in ionizer
- Anti-static breeze break
- Large weighing chamber for improved usability
- Built-in temperature, humidity, and atmospheric pressure sensors
- Interlockable slide doors allowing efficient operation with both hands
- Motorized calibration with an internal mass:
- Automatically triggered based on temperature variation
- Triggered by operator
- Clearly visible, white-backlit LCD
- Memory: up to 200 data sets
- AD-1688 as a standard accessory: dedicated USB key to record weighing data as well as environmental parameters into MS Excel readable files
- 12 weighing units: g, mg, oz, ozt, ct, mom, dwt, GN, tael, tola, pcs (counting), %.
- Special pans/holders for BM-20/22:
- Small pans for sampling minute amounts
- Holders for PM filters
- Holders for microfuge tubes
- Optional pipette accuracy testing kit
- Interfaces:
- RS-232C (standard)
- Quick USB (standard)
- Ethernet (optional)
-
ManufacturerAND Instruments Ltd
-
Country of OriginJapan
- Balances
-
Maximum Capacity5.1g/22g
-
Readability0.001mg/0.01mg
-
Pan Size25mm ø Dia
-
Calibration TypeInternal
-
ApprovedNo
-
Communications RS232Yes
-
Communications USBYes
-
Communitions EthernetOptional
-
Options & Accessories | Model |
---|---|
Ethernet interface with WinCT-Plus software* | BM-08 |
Pipette testing kit (all models) | BM-14 |
Density measurement kit (BM-252, 200, 300, 500) | AD-1653 |
Tabletop anti-vibration table | AD-1671 |
Freestanding anti-vibration table | ADI-MWT |
Table top breeze break | AD-1672 |
Electrostatic field meter | AD-1684 |
Tweezers for calibration weight | AD-1689 |
Display working covers (5pcs) | AX-BM-031 |
Centrifuge tube holder | AX-BM-032 |
Ioniser electrode needles (4pcs) | AX-BM-NEEDLESET |
Aluminium analytical pan (0.05ml, 8mm dia.) 100pcs | AX-PAN-0.05ML |
Aluminium analytical pan (0.3ml, 12mm dia.) 100pcs | AX-PAN-0.3ML |
Aluminium analytical pan (0.8ml, 15mm dia.) 100pcs | AX-PAN-0.8ML |
Foot switch | AX-SW128 |
* BM-08 and the standard Quick USB interface cannot be used at the same time