Read out Devices:

The output from the detector is suitably amplified and shown on a read out device like a meter or digital display. The sensitivity of the amplifier could be changed so as to be able to analyse samples of varying concentrations. In a few instruments the display could be adjusted to directly provide the output in terms of the concentration. Presently the instruments have microprocessor controlled electronics which gives outputs compatible along with the printers and computers whereby minimising the possibility of operator error in transferring data.