YSI 600DW-B Sonde - Manual (Page 289)

Frequently Asked Questions About YSI Drinking Water Systems Appendix H
• Stand-alone with internal logging and battery or external power
• Attached to a PC with real-time graphic display of data using YSI EcoWatch for Windows
software.
• Attached to a SCADA system utilizing the YSI 6500 Process Monitor as a link between the
sonde and the SCADA.
• Attached to a data collection platform, such as the YSI EcoNet system, which provides web-
based access to real-time data.
DRINKING WATER SONDE DEPLOYMENTS
What are the site requirements for using YSI Drinking Water Sondes?
To carry out side-stream (flow cell) studies, you will need the following:
• A water tap with a valve or regulator to control flow and a fitting to allow the attachment of an
inlet hose from the tap to the YSI flow cell.
• A drain to collect and dispose of the flow cell effluent
• Hardware to securely mount the sonde. This can be as simple as a hook on the wall to attach to
the sonde bail or a horizontal binding strap to attach a floor or table mounted sonde to a wall or a
frame.
• A site at which the water inlet and outlet will not freeze under winter conditions.
Do I need to have AC power at the deployment site?
No – the DW sondes can both operate from internal battery power for stand-alone studies in which data is
logged to the sonde memory and then uploaded periodically for analysis of previous events. However, if
you wish to see your data in real-time through the use of a SCADA system after processing the data via
YSI 6500 Process Monitor between the sonde and the SCADA, then AC power will be required at the site.
In addition, if you wish to attach the sonde to a DCP (such as the YSI 6200 or YSI EcoNet system), then
the use of AC power greatly facilitates the setup. Finally, even for stand-alone deployments, the use of the
YSI 6038 or 6651 power supplies saves the internal batteries and therefore is recommended if there is AC
power at the site.
I would like to install a drinking water monitoring device directly into a pipe and avoid the need for a
drain line? Can I do this with the YSI Drinking Water Sondes?
At the present time, there is no mechanism to insert standard YSI Drinking Water Sondes into a pressurized
water distribution system. Depending on market requirements, this type of application might be supported
in the future, but, for now, the answer is “No”.
I would like to install a drinking water sonde in my water storage tank by simply suspending it from
a support into the tank? Can I do this with the YSI Drinking Water Sondes?
The sondes and sensors were not designed for this application, but might still provide valuable information
under these conditions as long as a limitation with regard to the free chlorine sensor is recognized by the
user. This limitation is that the free chlorine sensor is NOT flow independent (see below for more
information). The flow dependence is not an issue in side-stream (flow cell) applications where the flow is
YSI Incorporated Drinking Water Monitoring Systems Operations Manual H-3