Zero Calibration And Auto Zero Tracking Belt Scale Weighfeeder Controller

•  EMC design with high anti-jam for industrial environment.
•  32-bit ARM CPU with 72MHz clock & high arithmetic speed.
•  128×64 LCD display screen with 7 background colors.
•  4+4 Red LED digital tubes for digit display.
•  24-bit Σ-△ADC with internal resolution 1/1,000,000.
•  High sampling frequency 400Hz.
•  Special Anti-vibration Digital Filtering Algorithm for precise weighing, stable display and rapid response.
•  Zero Calibration & Auto Zero Tracking.
•  Span Calibration & Segmenting Correction.
•  Speed Calibration & Belt Length Calibration.
•  The feeder and belt weigher can be controlled by DI&DO.
•  Quick and steady PID ration feeding control.
•  Queryable Records per shift/day/month of a year.
•  Definable DI/DOAO/COM[Communication Port].

Technical Specification

• Power Supply: AC220V±15%, 50/60Hz, Max. 15W.
• Loadcell Excitation Voltage/Current: DC10V/250mA.
• 8 Loadcells[350Ω] connectable.
• Weighing Signal Input Range: 0~25mV.
• Speed Sensor Excitation Voltage/Current: DC12V/100mA.
• Speed Signal Input Range: 0.5~3000Hz.
• 3 Normally Open Switch Inputs [DI].
• 4 Normally Open Relay Outputs [DO]: AC250V/DC24V, 1A.
• 1 ‘Totalized Weight’ Pulse Output [PO]: DC5~24V, 100mA.
• 2 ‘PID Control’ Analog Output [AO]: 4~20mA, 0.05%FS.
• 1 ‘Flow Set’ Analog Input [AI]: 4~20mA, 0.05%FS.
• COM1: Optional RS232/RS485/RS422/Profibus-DP/Ethernet.
• COM2: RS232.
• Connect Host IPC, Remote Display, Printer&Wireless Module.
• Outline Size [W×H×D]: 164 × 82 × 188 mm.
• Panel Cut-out Size [W×H]: 153 × 77 mm.
• Operating Temperature: -25℃～+45℃.
• Protection Level of Front Panel: IP65.
• Accuracy Grade: 0.5.
• Accuracy of Flow Control: 0.5%~1.0%.

Appendix A. Print Formats

Model Panel-mounting Installation

Model Panel-mounting Terminal

Ration Flow Auto-Feeding System:

Display Interfaces

The Numeric Display 1 displays Totalized Weight value and the Numeric Display 2-3 displays the following data: