Standard Rs232 And Rs485 Belt Weigher With Weight Totalizing With Lcd Display
Keypad Operation
If there is not any keypad operation in one minute and it’s not in the processes of ‘F2 Calibration’ & ‘F6 Factory Adj.’, the controller will return to ‘Main Display Interface’ automatically.
Menu Operation |
Key Name | Description |
【MENU】 (【ESC】) | Enter Main Menu. Exit. |
【ENT】 | Enter/Save. |
【▲】 | Cursor shifts up or left. Display the previous interface or option. |
【▼】 | Cursor shifts down or right. Display the next interface or option. |
【0~9】 | Digit Input. |
Quick Operation |
【LOCK】 | - Key-locking.
- Key-unlocking.
|
【F1】 | Return to the initial display interface. |
【SET】 | Flow Set Value Setting. |
【ADJ-】 | Control Current -1mA. |
【ADJ+】 | Control Current +1mA. |
【AUTO】 | ‘Manual/Auto’ Control Mode Selection. |
【EXT】 | ‘Internal/External’ Flow Set Mode Selection. |
【ZERO】 | Zero Calibration. |
【CAL】 | Dynamic Span Calibration. |
【CLS】 | Clear Screen: Clear display value of Totalized Weight. |
【REC】 | Query and print Weight Record. |
【PRINT】 | Print. |

Technical Specification
- CMC GB/T 7724-2008PRC National Standard.
² OMIL R50:1997International Recommendation.
² Accuracy Grade: 0.5.
² Accuracy of Flow Control: 0.5%~1.0%.
- 128×64 LCD display screen with 7 background colors for English display.
- Display Refreshing Time: Setting Range 0.1~2.0s.
- 16-key English keypad.
- Menu&Shortcut operation with key tone.
- Excitation Voltage/Max. Current: DC10V/250mA [8-350Ω loadcells].
- Signal Input Range: 0~25mV.
- ∑-△ADC: 24-bit, 100,000 internal code used.
- Sampling Frequency: 200Hz.
- Zero Drift: ±0.1μV/℃ RTI (Relative to Input).
- Gain Drift: ±5ppm/℃.
- Non-linearity: 0.005%FS.
- Output Voltage/Max. Current: DC12V/100mA.
- Speed Pulse Input Range: 0.5~3000Hz.
- 3 Normally Open Switch Inputs [DI].
- 4 Normally Open Relay Switch Outputs [DO]: AC250V/DC24V, 1A.
- 1 ‘Totalized Weight High-speed Pulse’ Output [PO]: 100mA, DC5~24V; Weight per Pulse and Pulse Width can be preset.
- Max.3 Definable ‘Flow/Control Current /…’ Analog Signal Outputs [AO]: 4~20mA, Non-linearity: 0.05%FS; AO3 is optional.
- 1 Optional ‘Flow Setpoint’ Analog Signal Input [AI]: 4~20mA, Non-linearity: 0.05%FS.
- Digital Communication Interface
- COM1: Optional RS232/RS485/RS422/Profibus-DP/Ethernet modules.
- COM2: RS232.
- Connectable: IPC/PLC, LED Remote Display, Serial Printer and Wireless Module.
- Weight Records per shift/day/month of a year can be queried and printed.
- Operating Voltage: DC24±20%.
- Max. Power Consumption: 10W.
- Outline Size: 288×95×189mm [W×H×D].
- Panel Cut-out Size: 281×88mm [W×H].
- Operating Temperature: -25℃ to +45℃.
- Storage Temperature: -30℃ to +60℃.
- Relative Humidity: Max. 85%RH.
- Protection Level of Front Panel: IP65.
- Weight: Approx. 1.4kg.
Pictures

Operation Interface Diagram
State Indication
LED Lamp | Description |
[RUN] | ON: Weighing state. OFF: Stopping state. |
[AUTO] | Feeding control mode: ON: Auto [PID]. OFF: Manual. |
[EXT] | Flow Set Mode: ON: External [AI: 4~20mA]. OFF: Internal. |
[ALARM] | Alarm. |
[LOCK] | ON: Key-locked. OFF: Key-unlocked. |
Installation

Operation Procedure

Ration Flow Auto-Feeding System
