The detection system composed of an 80cm large area position sensitive ionization chamber and two one-dimensional position sensitive plastic scintillators is used in the intermediate energy heavy ion reactions for the first time.The ionization chamber itself can be used to measure the heavier low energy ions with good particle identification ability and can provide information about energy as well as X and Y coordinates.The scintillators provide the possibility of measuring higher energy particles and can give energy and one dimensional position signals.Combined with the ionization chamber they can be used for particle identification.