3D TRASAR
5500 - Installation & Operation Manual
521-OM0108.88
Copyright
2009 Nalco Company
Technical Help
(630) 305-CHEM
Glossary-3
pH measurement
A measure of the acidity or alkalinity of a sample, numerically equal to 7 for neutral solutions,
increasing with increasing alkalinity and decreasing with increasing acidity. The pH scale commonly
in use ranges from 0 to 14 pH units.
Start up factor
Extends the relay timeout function during start up. The start up factor is multiplied by the relay
timeout period (ie. if the “relay timeout” is set to 60 minutes, and the start up factor is set to 5, the
total timeout period will be 300 minutes.)
Relay timeout
Maximum allowable time a relay is allowed to be energized before an alarm is triggered, and the
failsafe duty mode begins (user set.)
Tagged Polymer
A new component of TRASAR cooling water programs (ie. Nalco’s Prism polymer or High Stress
Polymer (HSP.)) The concentration of the “tag” equals the concentration of available, un-reacted
dispersant polymer. The 3D TRASAR algorithm compares the inert TRASAR signal to that of the
tagged signal, and then makes appropriate control decisions, either to increase or decrease the
treatment concentration or increase or decrease the conductivity set-point.
Turbidity measurement
A measure of how cloudy or dirty the water is, obtained by quantifying the degree to which light
traveling through a water column is scattered by the suspended particles. (The greater the scatter-
ing, the higher the turbidity.)
Vantage V100
Vantage V100 is Nalco’s field data management software program. 3D TRASAR data files can be
imported into Vantage V100 for the purpose of trending and reporting operational data.
