521-OM0108.88
Copyright
2009 Nalco Company
6-1
Technical Help
(630) 305-CHEM
3D TRASAR
5500 - Installation & Operation Manual
Section 6: 3D TRASAR Bio-Control and
3D TRASAR Bio-Shock Mode
3D TRASAR Bio-Control and 3D TRASAR Bio-Shock are unique and highly effective control
schemes for the addition of oxidizing biocide to the cooling system. Patented bio-reporter chemistry
is fed to the cooling system and reacts enzymatically with living microbes in the system. This reac-
tion is measured by the 3D TRASAR controller and is used to determine biological activity levels in
the system. The controller then feeds biocide at the correct time to maintain control.
3D TRASAR bio-reporter technology can be operated in two modes:
•
3D TRASAR Bio-Control mode: the bio-reporter ratio determines when and what
amount of biocide is to be added into the system to continuously control the microbiological
activity.
•
3D TRASAR Bio-Shock mode: the bio-reporter determines the time at which the
system is to be shocked with oxidizing biocide. The oxidizing biocide is then fed by timer or
ORP control according to user set parameters. When the oxidizing biocide concentration
dissipates, bio-reporter is added to the system and the microbiological activity is measured.
3D TRASAR Bio-Control ONLY works with the following oxidizing biocides:
•
STA-BR-EX
•
Bleach
•
ACTI-BROM
•
Chlorine Gas
•
Towerbrom (Towerbrom 991 Lil’ & Mini-Slugger; Towerbrom 960 in 3D TRASAR Bio-Shock
Mode )
•
BCDMH (use Easibrom feeder)
Note
:
Stabilized Chlorine
, aka N-2818 and N-7345
CANNOT
be used. If using Chlorine Dioxide,
call 630-305-CHEM.