I have the following load cell : http://www.loadcellshop.co.uk/S-Beam-Load-Cells/19-S-Beam-Load-Cell-500N-1kN-2.5kN-5kN.html
in addition I purchased such amplifier http://www.elane.net/index.php?go=loadcell_amplifier
However it will only provide 5v excitation voltage, the load cell requires 10V.
Can I provide the excitation voltage from external supply? This would mean connecting E+ to +10V, E- to common ground. S+ and S- would go to the amplifier and then +9V to AMP pin V , common ground (proto board) to G and arduino to sense signal via pin S.
I can alternatively build an amp with INA125P but the question remains, can I provide excitaiton voltage to the cell directly, leaving INA V-out disconnected?
Thanks for help!