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A&D – BM – 20 Micro Analytical Balances

The A&D BM-20 Series micro analytical balances are designed for ultra-precise and stable weighing in laboratory and research environments. With models ranging from 0.001 mg readability to 520 g capacity, these balances deliver exceptional repeatability, advanced anti-static performance, and automatic self-calibration to ensure highly accurate measurement results.

  • Ultra-high precision with readability down to 0.001 mg
  • Built-in ionizer for instant static elimination and stable weighing
  • Automatic self-calibration with environmental sensors for accuracy control
  • Advanced features & connectivity including GLP/GMP compliant output, RS-232C & USB interfaces

Description

The A&D BM-20 Series micro analytical balances are engineered for ultra-high precision weighing in laboratories, research facilities, and quality control environments. With models offering readability as fine as 0.001 mg and capacities up to 520 g, the series ensures exceptional repeatability, minimal linearity error, and outstanding measurement stability. A built-in fanless ionizer provides instant static elimination, while the anti-static glass breeze break and adjustable response characteristics help reduce the effects of drafts and vibrations, ensuring smooth and reliable weighing performance.

Designed for advanced analytical applications, the BM-20 Series features automatic self-calibration to maintain accuracy during temperature changes, along with embedded temperature, humidity, and atmospheric pressure sensors. The balances support multiple weighing units, GLP/GMP/ISO-compliant data output, and come equipped with RS-232C and USB interfaces for seamless connectivity. Additional functions such as density determination, counting mode with ACAI, comparator function, data memory, and underhook weighing make the BM-20 Series a comprehensive solution for precise and professional laboratory measurement needs.

Features

 
 Large working space for better operability and a wider range of applications
 Interlockable sliding doors allowing efficient operation with both hands
 Anti-static glass breeze break with a thin evaporated metal coating
 Adjustable (manual or automatic) response characteristics to help cope with the effect of drafts and vibrations
 Automatic self calibration to maintain accuracy under temperature changes
 Embedded temperature, humidity and atmospheric pressure sensors
 Multiple weighing units: g, mg, oz, ozt, ct, mom, dwt, grain, specific gravity (either tael or tola can be added upon request)
 Comes equipped with the handy AD-1688 weighing data logger
 Clearly visible, reverse-backlit LCD
 GLP/GMP/GCP/ISO compliant output
 Clock and calendar function
 Data memory function
 RS-232C and Quick USB interfaces as standard
 Counting mode with the Automatic Counting Accuracy Improvement (ACAI) function
 Percent mode function
 Comparator function with buzzer
 Auto power on function
 Underhook function
 Special pans/holder (BM-20/22)
 Density determination function and an optional density determination kit (for BM-252/200/300/500 only)
 Optional pipette accuracy testing kit
 Windows Communication Tools software (WinCT)
 Expert assessment of the set-up environment using AND-MEET* (please inquire at your local distributor for details)

Specifications

Model BM-20 BM-22 BM-252 BM-200 BM-300 BM-500
Weighing capacity 22 g 5.1 g / 22 g ** 250 g 220 g 320 g 520 g
Minimum weighing value 0.001 mg 0.001 mg / 0.01 mg 0.01 mg 0.1 mg
Repeatability (Standard deviation) 0.0025 mg (for 1 g) 0.004 mg (for 1 g) / 0.01 mg 0.03 mg (for 100 g) 0.1 mg 0.2 mg
Linearity ±0.010 mg ±0.010 mg / ±0.02 mg ±0.10 mg ±0.2 mg ±0.3 mg ±0.5 mg
Sensitivity drift (10 °C to 30 °C) ±2 ppm/°C (when automatic self calibration is not used)
Weighing pan Ø25 mm Ø90 mm

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