Weighing indicator BST100-B21 is mainly used for weighing, feeding&batching systems of belt scale. It adopts A/D conversion technology and broad-range speed pulse input circuit. Max. 8 loadcells are connectable. The functions of segmenting calibration, zero auto- tracking, key-locking & auto-locking, full digital setting & calibration, system start&stop control, feeding closed-loop control and so on are available. It supports industry configuration software.
Technical Specifications :
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Power Supply
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Operating Voltage 1: AC220V, -15%~+10%.
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Operating Voltage 2: AC85~264V.
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Operating Frequency: 50Hz, ±2%.
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Max. Power: 20W.
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Display
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16-bit red LED digital display.
![](http://www.supmeter.com.cn/Ch/Images/File_01.jpg)
Keypad
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6 keys for Menu operation with key tone.
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Key-locking and Auto-locking.
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Load Cell Signal Input Interface (SENSOR/LOADCELL)
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Excitation Voltage Output: DC10V.
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1 Weighing Input Signal: 0~30mV or 0/4~20mA.
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Wiring Modes: 6-wire, 4-wire and 2-wire.
![](http://www.supmeter.com.cn/Ch/Images/File_02.jpg)
Max. Connection Number: 8 Loadcells (350Ω, 0.5~3.0mV/V).
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A/D Converter
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24-bit ADC.
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Sampling Frequency: Max. 100Hz.
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Speed Sensor Signal Input Interface(SENSOR/SPEED)
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1 Speed Pulse Input Signal.
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Frequency Range:0.5~5000Hz.
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Power Supply Output:DC5~12V(adjustable),Max.100mA.
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Analog Signal Output Interface(AO)
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Max.3 Analog Output Signals:4~20mA.(AO3:optional)
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Accuracy:±0.1%FS.
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Definalbe:Flow Set-Point Input,Belt Angle Compensation Input,etc.
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Analog Signal Input Interface(AI)
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1 Analog Input Signal:4~20mA.
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Accuracy:±0.1%FS.
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Definalbe:Flow Set-Point Input,Belt Angle Compensation Input,etc.
![](http://www.supmeter.com.cn/Ch/Images/File_01.jpg)
Totalized Weight High-Speed Pulse Signal Output Interface(PO)
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1 Open-Collector Output.
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Capacity of Contacts:100mA,DC5~24V.
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Weight per Pulse and Pulse Width can be Preset.
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Relay/Transistor Switch Signal Output Interface(DO)
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4 Normally Open Relays or Transistor Switch Outputs.
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Capacity of Relay Switch:AC25V/DC24V,1A.
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Capacity of Transistor Switch:DC24V,500mA.
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Definable:Flow/Load/Speed/PID/Flow Deviation Limit Alarm,Totalized Weight Low Speed Pulse,Auto[PID]/Flow Outer Setting/Calibrating/Running State,Output DI1/DI2/DI3 Signal,Serial Port Set,Feeder Control,Scale Control,Batch-Finish,etc.
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Digital Switch Signal Input Interface(DI)
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3 DI Switch Input.
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Definalbe:Weighing/PID Control Switch,System Ready,Zero Calibration,Clear Screen,Start Control,Stop Control,etc.
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Digital Communication Interface (COM)
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COM1 Optional:RS485,Profibus-DP,Ethernet,CANBUS,Wireless Module(Only for BST100-B21),etc.
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COM2: RS232.
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Connectable: IPC/PLC, Remote Display, Remote Operating Terminal, Serial Printer, Wireless Module, etc.
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Power Supply Output: DC5V, 100mA
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Weight Record Save&Print
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Weight record per Shift/Day/Month of a year can be auto-saved and printed.
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Outline Dimension
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A11:160 × 84 × 188 mm (W×H×D).
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A21:202 × 290 × 90 mm (W×H×D).
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Cut Dimension
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A11:150+3 × 75+3 mm (W×H).
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Weight: Approx. 1.5kg (B11) and 3.4kg (B21).
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Temperature and Humidity
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Service Temperature: -10℃ to +40℃.
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Storage Temperature: -20℃ to +60℃.
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Relative Humidity: Max. 85%RH.
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IP Grade: IP50 (B11) and IP65 (B21).