Material Level weighing controller Electronic Weighing Indicator

      Main Features:

• Suitable for Hopper Scale, Platform Scale, Ration Feeding Scale with Single-material & Double-speed Feeding and Ration Batching Scale with Three-Material & Single-speed Feeding.
• EMC design with high anti-jamming capability, suitable for industrial environment.
• Model LED: 6 Red LED digital tubes for English character and digit display; 64-segment LED for percent display.
• Model VFD: 6 Green VFD digital tubes for English character and digit display.
• 6-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 200Hz.
• 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).
• 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.
• 1 Optional and definable analog signal output [AO: 4~20mA].
• 3 Normally open switch inputs [DI] and 4 normally open relay switch outputs [DO].
• 2 Optional communication ports for connecting Host IPC/PLC, LED Remote Display, Serial Printer and Wireless Module.
• Hopper Weighing Report, Ration Feeding Report and Ration Batching Report can be printed.
• With the multitasking mode, the weighing&control process will not be interrupted by parameter setting and the other operations.

     Picture

Technical Specification

• Executing Standard

• CMC GB/T 7724-2008PRC National Standard.
• OMIL R76: 2006International Recommendation.
• Accuracy Grade: III.
• Verification Accuracy: 0.02%.
• Static Weighing Accuracy: 0.2%~0.5%.
• Batching Accuracy: 0.2%~0.5%.

• Display

• Model LED: 6 Red LED digital tubes for English character and digit display; 64-segment LED for percent display.
• Model VFD: 6 Green VFD digital tubes for English character and digit display.
• Weight Display Range: -99,999~+99,999.
• Scale Capacity: Setting Range 1~99,999.
• Scale Division: Optional 1, 2, 5, 10, 20, 50, 100, 200, 500.
• Display Resolution: 1/100,000.
• Weight Unit: Optional kg, t, g, none.
• Decimal Point: Optional 0, 0.0, 0.00, 0.000, 0.0000.
• Display Refreshing Time: Setting Range 0.01~1.00s.

• Kaypad

• 6-key English keypad.
• Menu&Shortcut operation with key tone.

• Loadcell Interface

• Excitation Voltage/Max. Current: DC10V/250mA [8-350Ω loadcells].
• Signal Input Range: 0~25mV.
• Output Sensitivity of Loadcell: 1.0~2.5mV/V.
• 24-bit ∑-△ADC with internal resolution 1/1,000,000.
• Sampling Frequency: 200Hz.
• Special anti-vibration digital filtering algorithm.
• Zero Drift: ±0.1μV/℃ RTI (Relative to Input).
• Gain Drift: ±5ppm/℃.
• Non-linearity: 0.005%FS.

• Switch&Analog Signal Interface

• 3 Normally Open Switch Inputs [DI].
• 4 Normally Open Relay Switch Outputs [DO]: AC250V/DC24V, 1A.
• 1 Optional&Definable Analog Signal Output [AO]: 4~20mA, Non-linearity: 0.05%FS.

• 
  Digital Communication Interface

• COM1: Fixed configuration RS232&RS485. Free to use one of them.
• COM2: Optional RS232/RS485/RS422/Profibus-DP/Ethernet modules.
• Connectable: Host IPC/PLC, LED Remote Display, Serial Printer and Wireless Module.

• Report Print

• Hopper Weighing Report, Ration Feeding Report and Ration Batching Report can be printed.

• Operating Specification

• Optional Operating Voltage

• Operating Voltage 1: DC24V±20%.
• Operating Voltage 2: AC220V±15%, 50/60Hz.
• Model Panel-mounting: Free to configure one of them.
• Model Wall-mounting / Model Explosion-proof: Free to use one of them.

• Max. Power Consumption: 10W.
• Outline Size

• Model Panel-mounting [DC24V]: 170×91×184mm [W×H×D].
• Model Panel-mounting [AC220V]: 160×84×188mm [W×H×D].
• Model Wall-mounting: 202×305×90mm [W×H×D].
• Model Explosion-proof: 340×390×205mm [W×H×D].

• Panel Cut-out Size

• Model Panel-mounting: 151×76mm [W×H].

• Operating Temperature: -25℃ to +45℃.
• Storage Temperature: -30℃ to +60℃.
• Relative Humidity: Max. 85%RH.
• Application Environment of Model Explosion-proof

• Explosion gas environment: Zone 1&2.
• Classes of explosion gas mixture: IIA, IIB.
• Temperature grades of explosion gas mixture: T1~T6.
• Ex-mark: Ex d IIB T6 Gb.

• Protection Level

• Front Panel of Model Panel-mounting: IP65.
• Model Wall-mounting: IP65.
• Model Explosion-proof: IP65.

• Weight

• Model Panel-mounting: Approx. 1.5kg.
• Model Wall-mounting: Approx. 3.4kg.
• Model Explosion-proof: Approx. 19.2kg.

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.

State Indication