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2009 Nalco Company
5-21
Technical Help
(630) 305-CHEM
3D TRASAR
5500 - Installation & Operation Manual
23. When should I perform a Relearn?
You should perform a Relearn to clear the learned data when you change any of the following:
• Conductivity set point
• Blowdown control method
• Product 2 set point
• Product 2 control method
• Product 1 set point
• Product 1 control method
• Number of products
• pH setpoint
• Change any product or Product Factor (TRASAR or Tagged Polymer) (This also needs a product
transition period)
24. My conductivity is over the upper deadband. Why is there no blowdown?
• After the product pump off event(s), there is a wait interval (25 minutes by default) to allow for
system mixing. During this wait interval, the blowdown is shut off.
• After a power cycle or after the power is turned on, if Product level(s) > lower deadband, there is a
wait interval during which the blowdown is shut off.
• In case of running NSI control, the set point may have been adjusted to a higher value.
25. Where can I call for help?
Call
(630) 305-CHEM
for help/questions.
