High Frequency Sampling Load Cell Display And Controller For Dynamic Axle Weigher

High-Frequency Sampling Weighing and Totalizing Controller With Explosion-proof For Dynamic Axle Weigher

Technical Specification

Executing Standard

• CMC GB/T 7724-2008PRC National Standard.
• OMIL R76: 2006International Recommendation.
• Accuracy Grade: III.
• Verification Accuracy: 0.03%.
• Static Weighing Accuracy: 0.2%~0.5%.
• Dynamic Axle-weighing Accuracy: 0.5%~1.0%.

Display

• 6+8 Red LED digital tubes for English character and digit display.
• Weight Display Range: -99,999~+999,999.
• Scale Capacity: Setting Range 1~999,999.
• 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

• Model Panel-mounting: 4-key English keypad.
• Model Explosion-proof: 6-key English keypad.
• Menu&Shortcut mode operation with key tone.

Loadcell Interface

• Excitation Voltage/Max. Current: DC9V/120mA [4-350Ω loadcells].
• Signal Input Range: 0~22.5mV.
• Output Sensitivity of Loadcell: 1.0~2.5mV/V.
• 24-bit ∑-△ADC with internal resolution 1/1,000,000.
• Sampling Frequency: 400Hz.
• 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

• 6 Normally Open Switch Inputs [DI].
• 5 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: RS232.
• COM2: RS485.
• Connectable: Host IPC/PLC, Serial Printer and LED Remote Display.

Report Print

• The present axle weighing record can be queried and printed automatically and manually.

Operating Specification

 Operating Voltage

• Model Panel-mounting: DC24V±20%.
• Model Explosion-proof: AC110~240V, 50/60Hz.

  Max. Power Consumption: 5W.

Outline Size and Weight

• Model Explosion-proof: 256×290×166mm [W×H×D].
• Model Explosion-proof: Approx. 9.2kg.

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 Explosion-proof: IP65.

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.

Model Explosion-proof Operation Interface:

Installation:

Axle-weighing System Diagram: