3D TRASAR
5500 - Installation & Operation Manual
521-OM0108.88
Copyright
2009 Nalco Company
Technical Help
(630) 305-CHEM
A-1
Appendix A: Specifications
Feed and Control Methods
Chemical Feed - Inhibitor
Chemical feed based on manual, timer or slave option. On/off control based on TRASAR, Tagged
Polymer or 3D TRASAR Scale Control.
Chemical Feed - Oxidizing Biocide
Timer, manual, or slug based feed with pre-bleed and lockout capability. On/off control based on
ORP or 3D TRASAR Bio-Control.
Chemical Feed - Non-oxidizing Biocide
Timer or manual based feed with pre-bleed and lockout capability.
pH
Acid or caustic on/off, based on flat surface, double junction 2-wire pH probe input, range 0-14 pH.
ORP
Oxidizing biocide feed based on flat surface, double junction ORP probe input, range – 1000 to
+1000 mv.
Blowdown
On/off based on Conductivity (range 500-99,999
u
S/cm) or 3D TRASAR Scale Control.
Multipurpose timers
Timer based feed on any available relay (no pre-bleed or lockout).
Monitoring Functions
Corrosion Monitoring
Continuous on-line measuring (with Auto-Probe Recognition) mild steel and copper (standard)
range 0 to 99 mils per year.
Additional Monitored Variables
• Cell Fouling
• Turbidity
• Temperature
• Background Fluorescence
• Relay Status
• Pulse counter with water meter
Additional Calculated Variables
• Holding Time Index
• System Volume
• Blowdown Rate
• Heat Rejection (Btus)
• Makeup Water Rate
• Recirculation Rate
• Pump Duty
• Product Usage