DC24V Led Display Controller With AO4-20Ma, Weighing Indicator With RS232 And DO DI For Ration Packing Scale

Main Features:

• Suitable for Loss-in-weight Ration Packing Scale with Auto Bag-releasing or Manual Bag-releasing and Loss-in-weight Bulk Material Ration Feeding Scale.
• EMC design with high anti-jamming capability, suitable for industrial environment.
• 32-bit ARM CPU with 48MHz clock & higher arithmetic speed.
• 6+8 Red LED digital tubes for English character and digit display.
• 4-key English keypad.
• Menu&Shortcut mode operation with key tone.
• 24-bit High-precision and high-speed ∑-△A/D conversion module with 1/1,000,000 internal resolution and sampling frequency 400Hz.
• Special anti-vibration digital filtering algorithm for ensuring the weighing stability and occuracy when there is strong vibration on the load receptor, and the rapid response capability when the weight signal changes.
• Max. Connection Quantity: 4 Loadcells (350Ω).
• Auto Zero Initial Calibration after Power-on, Auto Zero Tracking, Zero Fine Adjustment, Zero Calibration and Load Calibration functions available.
• Optional Data Calibration function.
• Auto-locking, Key-locking, Key-unlocking, Digital Setting&Calibration and I/O Testing functions available.
• 6 Normally open switch inputs [DI] and 8 normally open transistor switch outputs [DO].
• Optional ‘High/Medium/Low Speed Feed’ DOs for feeding control. Optional Low-speed Feeding Modes: Continuous Feeding Mode and Inching Feeding Mode.
• 1 Optional and definable analog signal AO[4~20mA] for weight signal output or ‘High/Medium/Low Speed Feed’ control.
• Optional ‘Fall Value Auto Correction’ function.
• Optional ‘Auto Pause for Deviation Alarm’ function.
• Optional ‘Target Batch Control’ function [With Target Batch Count or Target Batch Weight finished, the packing process will stop automatically].
• 2 Communication ports [RS232&RS485] for connecting Host IPC/PLC and LED Remote Display.
• With the multitasking mode, the weighing&control process will not be interrupted by parameter setting and the other operations.

Model Panel-mounting Operation Interface

Keypad Operation

If there is not any keypad operation in one minute and it’s not in the processes of ‘F2 System Calibration’ & ‘F6 Factory Adjustment’, the controller will return to ‘Main Display Interface’ automatically.

Technical Specifications

•  Power Supply: DC24V±20%, Max. 5W.
•  Loadcell Excitation Voltage/Current: DC9V/120mA.
•  4 Loadcells[350Ω] connectable.
•  Weighing Signal Input Range: 0~22.5mV.
•  6 Normally Open Switch Inputs [DI].
•  8 Normally Open Transistor Outputs [DO]: DC24V, 250mA.
•  1 Analog Signal Output [AO]: 4~20mA, 0.05%FS.
•  COM1: RS232.
•  COM2: RS485.
•  Connect Host IPC[Modbus] & Remote Display.
•  Outline Size [W×H×D]: 110 × 62 × 150 mm.
•  Panel Cut-out Size [W×H]: 94 × 47 mm.
•  Operating Temperature: -25℃～+45℃.
•  Protection Level of Front Panel: IP65.
•  Accuracy Grade: III.
•  Verification Accuracy: 0.03%.
•  Static Weighing Accuracy: 0.2%~0.5%.
•  Packing Accuracy: 0.2%~0.5%.