Explosion-proof IP65 Ration Packing Controller for Loss-in-weight Ration Packing Scale

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%.
• Packing Accuracy: 0.2%~0.5%.

• 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].
• 8 Normally Open Transistor Switch Outputs [DO]: DC24V, 250mA.
• 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 and LED Remote Display.

• Operating Specification

• Operating Voltage

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

• Max. Power Consumption: 5W.
• Outline Size

• Model Panel-mounting: 110×62×150mm [W×H×D].
• Model Explosion-proof: 256×290×166mm [W×H×D].

• Panel Cut-out Size

• Model Panel-mounting: 94×47 mm [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 Explosion-proof: IP65.

• Weight

• Model Panel-mounting: Approx. 0.5kg.
• Model Explosion-proof: Approx. 9.2kg.

Model Explosion-proof 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.

*: Keep the key pressed for 2 seconds.

Model Explosion-proof Installation