EMC Design Digital Weighing Controller Weight Measuring Control Module

Weight Measuring Control Module, Weighing Controller With Auto Weight-checking Setpoint DO Output and AO/Digit Transmission

• Applications: Weight/Force Display, Peak Value Detection&Display Holding, Auto Weight-checking, Setpoint DO Output and AO/Digit Transmission.
• EMC design with high anti-jamming capability, suitable for industrial environment.
• 32-bit ARM CPU with 48MHz clock & high arithmetic speed.
• 6+6 Red LED digital tubes for English character and digit display.
• 4-key English keypad for Menu&Shortcut mode operation.
• 24-bit High-precision and high-speed ∑-△A/D conversion module with 1/1,000,000 internal resolution and max. sampling frequency 3200Hz.
• Special anti-vibration digital filtering algorithm for ensuring the weighing stability and accuracy when there is strong vibration on the load receptor, and the rapid response capability when the weight signal changes.
• Max. Connection Quantity: 8 Loadcells (350Ω).
• Zero Upon Power Up, Zero Auto-tracking, Manual/Auto Zero and Zero Calibration available.
• Load Calibration, Data Calibration, Segmenting Span Correction and Segmenting Weight Calculation available.
• Auto-locking, Key-locking, Key-unlocking, Digital Setting&Calibration and I/O Testing functions available.
• 3 Definable normally open switch inputs [DI] and 3 definable normally open transistor switch outputs [DO].
• 1 Optional&definable current signal output [AO: 0~20mA].
• 1 Optional&definable voltage signal output [VO: 0~10V].
• RS232, optional RS485 and CANBUS communication ports for connecting Host IPC/PLC and LED Remote Display.
• With the multitasking mode, the weighing/force measuring process, alarm output and signal transmission will not be interrupted by parameter setting and the other operations.

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.

*: Keep the key pressed for 2 seconds.

Technical Specifications

• Executing Standards

• PRC GB/T 7724-2008 Electronic Weighing Meter National Standard.
• PRC JJG 649-2016 Digital Weighing Indicators National Verification Regulation.
• OMIL R76-1: 2006 Non-automatic Weighing Instruments International Recommendation.
• Accuracy Grade:Ⅲ.
• Number of Verification Scale Interval: n=3000.

• Display

• 6+6 Red LED digital tubes for English character and digit display.
• Weight Display Range: -9,999~+99,999.
• Scale Capacity: Setting Range 1~99,999.
• Scale Division: Optional 1, 2, 5, 10, 20, 50, 100, 200, 500.
• Display Resolution: 1/50,000.
• Decimal Point Position: Optional 0, 0.0, 0.00, 0.000, 0.0000.
• Display Refreshing Time: Setting Range 0.01~1.00s.

• Keypad

• 4-key English keypad for Menu&Shortcut mode operation.

• Weighing Signal Interface

• Excitation Voltage/Max. Current: DC5V/120mA [8-350Ω loadcells].
• Signal Input Range: 0~12.5mV.
• Output Sensitivity of Loadcell: 1.0~2.5mV/V.
• 24-bit ∑-△ADC with internal resolution 1/1,000,000.
• Optional Sampling Frequency: 3200Hz, 1600Hz, 800Hz, 400Hz, 200Hz, 5Hz.
• Special Anti-vibration Digital Filtering Algorithm for precise weighing, stable display and rapid response.
• Zero Drift: ±0.1μV/℃ RTI (Relative to Input).
• Gain Drift: ±5ppm/℃.
• Non-linearity: 0.005%FS.

• Switch&Analog Signal Interface

• 3 Optional&definable normally open switch inputs [DI].
• 3 Optional&definable normally open transistor switch outputs [DO]: DC24V, 250mA..
• 1 Optional&definable current signal output [AO: 0~20mA], Non-linearity: 0.05%FS.
• 1 Optional&definable voltage signal output [VO: 0~10V], Non-linearity: 0.05%FS.

• Digital Communication Interface

• COM1: RS232.
• COM2: Optional RS485.
• COM3: Optional CANBUS.
• 
  Connectable: Host IPC/PLC and LED Remote Display.

• Operating Specification

• Operating Voltage: DC24V±20%.
• Max. Power Consumption: 3W.
• Outline Size: 108×117×54.9mm [W×H×D].
• Guide rail type installation.
• Guide Rail Groove Size: 35×1.6 mm [W×D].
• Operating Temperature: -25℃ to +45℃.
• Storage Temperature: -30℃ to +60℃.
• Relative Humidity: Max. 85%RH.
• Weight: Approx. 280g.