BM Series by AND Weighing

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A&D's core technology of analog and digital conversion enables us to understand and utilize information within the environment. With this competency, we provide tools using precision measurement and controlling technology and assist customers to create added value and contribute to the development of industry and healthy living.

Since our inception in 1977, A&D has grown into a multinational corporation with operations in the United States, Germany Japan, Australia, Korea and Great Britain with worldwide sales in excess of $400 million.

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BM Series

Analytical Balances

Weighing is at the heart of many laboratory processes and the BM Series(Ion Series) offers the features, performance and standard accessories to bring real convenience to your lab. With the six balances of the Ion Series, you can choose a capacity as high as 520 g or a microbalance with readability down to 1 μg.

Features

Specifications

Available Models

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

MODEL	BM-20	BM-22	BM-252	BM-200	BM-300	BM-500
Weighing capacity	22g	5.1g / 22g¹	250g	220 g	320 g	520 g
Minimum weighing value	0.001mg	0.001mg / 0.01 mg	0.01mg	0.1mg
Repeatability/Std Dev	0.0025mg (for 1g)	0.004mg (for 1g) / 0.01mg	0.03mg (for 100g)	0.1mg	0.2mg
Linearity	±0.010mg	±0.010mg / ±0.02mg	±0.010mg	±0.2mg	±0.3mg	±0.5mg
Stabilization Time (set to FAST)	Approx. 10 sec.	Approx. 10 / 8 sec.	Approx. 8 sec.	Approx. 3.5 sec.
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	GLP / 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		200, 100, 50, 20, 10	200, 100, 50	300, 200, 100, 50	500, 300, 200, 100, 50
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)		90 mm
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, WinCT (CD-ROM), 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.

1 Smart range function: The minimum weighing value switches to 0.01 mg automatically when the display value exceeds 5.1 g but returns to 0.001 mg by pressing the RE-ZERO (tare) key.

MODEL		BM-20	BM-22	BM-252	BM-200	BM-300	BM-500
g	Capacity	22	5.1 / 22	250	220	320	520 g
g	Readability	0.000001	0.000001 / 0.00001	0.00001	0.0001
mg	Capacity	22000	5100 / 22000	250000	220000	320000	520000
mg	Readability	0.000001	0.001 / 0.01	0.01	0.1
oz	Capacity	0.776	0.18 / 0.776	8.82	7.76	11.29	18.34
oz	Readability	0.0000001	0.0000001 / 0.000001	0.000001	0.00001
ozt	Capacity	0.707	0.164 / 0.707	8.03	7.07	10.29	16.72
ozt	Readability	0.0000001	0.0000001 / 0.000001	0.000001	0.00001
ct	Capacity	110	25.5 / 110	1250	110	1600	2600
ct	Readability	0.00001	0.00001 / 0.0001	0.0001	0.001
mom	Capacity	5.87	1.36 / 5.87	66.67	58.7	85.3	138.7
mom	Readability	0.000001	0.000001 / 0.00001	0.00001	0.0001
dwt	Capacity	14.15	3.28 / 14.15	160.7	141.5	205.8	334.4
dwt	Readability	0.000001	0.000001 / 0.00001	0.00001	0.0001
GN	Capacity	339.5	78.71 / 339.5	3858	3395	4938	8024
GN	Readability	0.00002	0.00002 / 0.0002	0.0002	0.002

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