Load Cell Connection

Hi,

I am trying to connect Zemic L6E3 loadcell to my arduino but i cant figure out what do these connections mean.

It says on the datasheet ; Connections: Red Input(+) Black Input(-) Green Output(+) White Output(-) Transparence( shield)

Which one of them is 5V? Ground? or signal, and what is the 4th connection?

Im very new to electronics so i'll be pleased if someone help me out.

and here is the datasheet : http://www.dekaltd.com.tr/dosyalar/L6E3%202.pdf

Connections: Red Input(+) Black Input(-) Green Output(+) White Output(-) Transparence( shield)

Load cells are passive resistance bridges that require DC excitation voltage applied before they output a voltage. The Red would go to +5vdc, black to ground, green to your analog input pin, white to ground. shield to ground.

The big problem your going to find is the very low millivolt output this cell will provide, normally load cells first go to a instrumentation amplifier that will amplify it to a more useful DC voltage.

There is a way in the Arduino software to change the analog reference to a much lower amount, around 1 volt I think but that still might not be enough signal increase to by useful.

good luck

Lefty

Have you solved this problem?