YSI 600DW-B Sonde - Manual (Page 287)

Frequently Asked Questions About YSI Drinking Water Systems Appendix H
APPENDIX H
FREQUENTLY ASKED QUESTION ABOUT YSI
DRINKING WATER SYSTEMS
GENERAL
What are YSI Drinking Water (DW) Sondes designed to do?
YSI DW sondes are specially designed for the monitoring of long term trends in drinking water distribution
systems in flow cell (slipstream or side stream) applications. Typically, “long term” would mean
deployments of at least 60 days with no maintenance of the sensors except for the possible need for in situ
calibrations without removing the sonde from the site.
What types of DW sondes are available?
Two types of sondes (shown in the picture below) can be purchased for drinking water applications -- the
6920DW which operates from 8 internal AA batteries and the 600DW-B which operates 4 internal AA
batteries.
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600DW-B 6920 DW
What drinking water parameters can be monitored with DW sondes?
For the 6920DW, typical parameters to be monitored are temperature, conductivity or specific conductance,
pH, ORP, turbidity, and free chlorine. The 600DW-B measures all of these parameters except for
turbidity. The 6920DW is also capable of measuring ammonium, nitrate, and chloride with ion selective
YSI Incorporated Drinking Water Monitoring Systems Operations Manual H-1