Ph Sensor

hi
how can i connect Ph electrod with bns port to mini2440

What is a bns port?
What signal does the PH sensor output?

BNS ? I think you meant BNC !
PH probe will need a adapter/amp interface to one of the AD input or use
some Micro to convert it to serial or I2C.

ref:
http://damien.douxchamps.net/elec/ph_meter/
http://www.emesys.com/OL2ph.htm
http://www.66pacific.com/ph/simplest_ph.aspx
http://blea.ch/wiki/images/2/24/PH-sch.jpg
http://www.sparkyswidgets.com/Projects/pHInterface.aspx

or you can just buy one of this :)

http://www.sparkyswidgets.com/Products/Store/Details/tabid/81/ProductID/...
[img]http://www.sparkyswidgets.com/Portals/0/SmithCart/Images/SW_02_010Asm.pn...]

Then I would say "BNC connector" :)

ops BNS => BNC
tank you for answer