Weight Sensor (Load Cell)0-500g

Applicable to electronic scale, price computering scale, electronic platform scale, digital scale; parcel post scale, electronic balance and all varieties of commercial scales by single load cell.

Model: SEN128A3B

http://www.seeedstudio.com/depot/images/product/loadcell500.jpg

Specification

• capacity g 500g

• Output sensitivity mv/v 0.5±0.1

• Nonlinearty %.F.S 0.05

• Hysteresis %F.S 0.05

• Repeatability %F.S 0.05

• Creep(30min) %.F.S 0.05

• Temperature effect on sensitivity %F.S/10℃ 0.05

• Temperature effect on zero %F.S/10℃ 0.05

• Zero Balance %F.S ±0.5

• Input resistance Ω(ohms) 1120±10

• Output resistance Ω(ohms) 1000±10

• Insulation resistance MΩ(ohms) ≥2000

• Recommended excitation voltage v 5v

• Method of Connecting wire red： Exc + black： Exc –

• green： Sig + white：Sig -

Usage

Hardware install

Note: Weight sensor output 0V when the load less than 150g,so we can not directly measure the load .My method is using a 200g local avoid measure blind spot.Read the analog data of 200g weight as no-load(0g),read the analog data of 700g weight as full load(500g).

Programming

void setup()
{
  Serial.begin(9600);  
}

void loop()
{
  int value;
  value = analogRead(0);
  Serial.println(value);
}

external link

How to use with Arduino.

Sourse

INA125 datasheet

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