TDS Conductivity probe in-line conductivity measurement SPS-21

DESCRIPTION

The ADCATROL SPS-21 conductivity probe is used to measure the conductivity (TDS) of the superheated water of boilers or condensate.

The probe is used in conjunction with an ADCATROL BCS-211 controller and VPC series blowdown valve.

The water contains impurities in form of dissolved solids and solids in suspension, whose concentration increases when it’s vaporized. Water treatment can reduce impurities to a certain level, but it does not eliminate them completely and, in certain conditions, it might even increase them. As steam production starts, the concentration of total dissolved solids (TDS) increases in the boiler’s water. If the concentration is too high, contamination of steam may occur, resulting in system damage further ahead, such as corrosion and salt incrustations on thermal transference surfaces, among other problems.

This high concentration is harmful and is not acceptable in applications where steam is used for treatment of food, drinks and sterilization processes.

In order to limit the concentration of TDS to a suitable level, a certain amount of boiler water must be periodically eliminated (purge action) and replaced by treated water