A&D AD-4212B-23 Production Weighing System, 21 g x 0.001 mg, with RS-232C

Item #AD-4212B-23

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  • High performance/high precision weighing modules

  • Patented C-SHS weighing and EM-DLC analog to digital converter ensure precise results every time

  • High speed and high resolution for in-line production weighing, filling, checkweighing, or enclosed environments

  • Compact durable design to protect against vertical and transverse overloads, vibration and draft


To improve productivity, you can create your own weighing system using the AD-4212B Precision Weighing Sensor. The compact design, as well as the separate weighing unit and display unit, ensure installation of the Super Hybrid Sensor (SHS) at any stage of your weighing system.

Weighing Capacity 21 g
Minimum Weighing Value 0.001 mg
Repeatability (Standard Deviation) 0 - 10 g (gross): 0.003 mg*
10 - 21 g (gross): 0.004 mg*
Linearity ±0.01 mg
Stabilization Time Approximately 12 seconds (when set to FAST under a good environment)
Sensitivity Drift ±2 ppm / °C (10°C to 30° / 50°F to 86°F)
Operating Environment 5° C to 40° C (41° F to 104° F), 85% RH or less (no condensation)
Display Refresh Rate 10 times/second (5 times/second can be selected)
Display Mode g, mg, oz, ozt, ct, mom, dwt, GN, tael, tola, PC (counting mode), Pct (percent mode)
Counting Mode Minimum unit mass: 0.1 mg
Number of samples: 10, 25, 50 or 100 pieces
Percent Mode Minimum 100% reference mass: 1 mg
Minimum 100% display: 0.01%, 0.1%, 1% (depends on the reference mass stored)
I/O Unit RS-232C: bi-directional, 600-19200 bps
Comparator contact output: 3-level or 5-level (with buzzer)
External contact input: RE-ZERO, PRINT
Calibration Weight Provided(Conforming to OIML Class E2) 1 g
Applicable Calibration Weight Value 1 g, 2 g, 5 g, 10 g, 20g
Weighing Unit Dimensions: 80 W x 230 D x 90 H mm
Weighing pan: ø 34 mm
Weight: approximately 2.3 kg
Display Unit Dimensions: 237 W x 150 D x 155 H mm
Weight: approximately 2 kg
Connection Cable Approximately 2 m (between weighing unit and display unit)
Power Supply AC adapter
Power Consumption Approximately 15 VA (supplied to the AC adapter)

* Repeatability for a 1 g mass using an automatic loading machine.

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