STREAMING CURRENT MONITOR Streaming Current STANDARD FEATURES SCM2500 / SCC3500 ! Patented sensor design ! Quick-replacement probe and piston ! Handles sample flow rate up to 5 gpm ! Automatic zero adjustment ! Expansive sensitivity (Gain) adjustment ! High/Low alarm output ! Multiple analog and digital outputs SCC3500 ! SmartTrac control (PID + flow pacing) ! Process status input (control signal hold) OPTIONAL FEATURES ! DuraTrac II sensor (heavy duty applications, accepts 10 gpm flow) ! Automatic sensor flush ! Sensor Maintenance Option ! Web Access Controller (WAC) Industry’s most advanced microprocessor-based SCM SmartTrac PID ensures reliable automatic control of coagulant dosing Dependable automation for even non-continuous (batch) running processes High-volume flow and sensor cleaning options minimize sensor fouling Features specifically designed for the challenges of wastewater applications APPLICATIONS Water Treatment ! Respond quickly to raw water changes ! Reduce coagulant usage ! Improve clarifier performance Wastewater Treatment ! Respond quickly to changes in solids ! Reduce polymer usage ! Improve dewatering performance Reverse Osmosis Pretreatment ! Reduce RO membrane fouling ! Monitor RO feedwater for overfeed of filter aids DESCRIPTION The Streaming Current Monitor SCM2500/SCC3500 uses streaming current measurement to maintain proper electrokinetic charge (ionic & colloidal) in the treated water. It responds effectively to changes in raw water characteristics (turbidity, color, pH, etc.) and flow rates. This allows the operator, or an automated control device, to make the necessary coagulant feed adjustments in order to continuously maintain the optimum dosage. Chemtrac, Inc. 6991 Peachtree Industrial Boulevard, Building 600 Norcross, GA 30092 USA PH: 770.449.6233 US: 800.442.8722 FX: 770.447.0889 www.chemtrac.com

GENERAL SPECIFICATIONS Data Collection Software SmartTrac PID Control - SCC3500 Only Monitor/Controller Engineering Units: ±1000 streaming current units 1.0 streaming current units User Interface: Backlit liquid crystal display, menu driven functions, keypad interface Response Time: Diagnostic alarm & High/Low alarms Signal Gain: Zero Offset: User adjustable, full scale all ranges Digital Input: Two dry contacts ! Low flow input ! Low cleaning solution (Communicates on RS485 Network PID + flow based to Chemtrac Turbidimeters control and Particle Counters) 0-1000 Proportional gain Digital Output:...