| AD-4421 |
| High-Speed, High-Precision Weighing Indicator |
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Display & Design
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 Clearly Visible LCD
White-segment LCD with:
Main Display: 8 digits, 14.5 mm character height
Sub Display: 20 digits, 5 mm character height
16-status indicators for real-time status and function display
Compact Panel Mount Design
Dimensions: 144 (W) x 72 (H) x 134.7 (D) mm
Panel cutout: 138 x 68 mm
IP65 Front Panel Protection
Ensures dust and water resistance when properly mounted to the control panel
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High-speed & High-accuracy Weighing
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High Performance Digital Filter (HPDF）
Effectively eliminates vibrations for stable and accurate weighing,
even in harsh environments. Reduces the need for mechanical anti-vibration measures,
cutting costs and maintenance.
High-Speed Sampling
1200 times/second sampling rate enables fast and accurate measurements,
especially when combined with HPDF
Easy HPDF Tuning
Use the free WinCT4421 software to visually adjust filter strength and response speed.
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Advanced Weighing Functions
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Filling & Dosing Modes
Four modes for hopper and packer scales: simple and sequential filling/dosing
Checkweighing Mode
Classifies products by weight using comparator outputs (up to 5 levels)
Automatic Accumulation
Automatically totals net weights; can exclude over/underweight values
100-code Memory
Stores up to 100 sets of comparison groups (for filling and dosing modes)
and accumulation results
Supplemental Filling
Automatically adds small amounts if the target weight is not reached
in filling and dosing modes
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Versatile I/O Interfaces
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Standard Interfaces
・ Control I/O: 6 inputs / 8 outputs (open collector, customizable)
・ Serial Output: For A&D printers and remote displays (20 mA current loop)
・ RS-485: For PC communication and command input (Modbus-RTU supported)
・ USB Type-C: For PC connection and data backup via WinCT4421
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Optional Interfaces
・ BCD Output: Outputs weighing data in BCD format
・ RS-422/485: Additional communication channel (Modbus-RTU supported)
・ RS-232C: For external displays, printers, or PC control
・ Analog Output: 4–20 mA / 0–10 V analog signal output
・ Modbus-TCP: Easy integration with PLCs and HMIs via Ethernet
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Ease of Setup & Maintenance
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WinCT4421 Software (Free)
・ Change, back up, and copy internal settings and Code Memory
・ Monitor weighing values and log data to CSV
・ Adjust HPDF settings in real time
・ USB-powered operation for easy setup
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4-wire / 6-wire Load Cell Switching
Software-selectable, eliminating the need for external jumpers
Digital Span Calibration
Enables calibration without actual weights by inputting a reference voltage
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 Drawings (PDF)
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CAD File (DXF)
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