The water sampling station SR 400 and SR 500 includes additional to
the chlorine measuring cell a connector with flow adjustment valve, a dirt trap, a hydrostatic flow controller for the chlorine measuring cell and a flow monitor with Reed contact.
It is built in an activated-carbon filter for adjusting the OFFSET of the chlorine measuring cell.
Water sampling station SR 500 includes additional a tranparent housing for measurement of pH-value and redox-value. A groundig pin is built in, too.
The two electrodes of the chlorine measuring cell which is suitable for all types of pure water are normally made from platinum/copper. Because of the better chemical resistance, we recommend using platinum/silver electrodes for salt and sea water.