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CHLORINE RESIDUAL ANALYZERMODEL CRA3500

Chlorine Residual Analyzer

BENEFITS

! Low Purchase Cost
! Low Cost of Ownership
! Reduced pH Dependency
! SMS Text Alarms
! Webserver*
! 4-20mA and Relay Outputs
! Carbon Dioxide or Acid Buffer if Required

OPTIONAL FEATURES

! Automatic Calibration
! Probe Ranges (0-2, 0-5, 0-10) mg/l (ppm)
! Bluetooth communications

APPLICATIONS

WATER TREATMENT INFLUENT / EFFLUENT MONITORING
! Remote Sites
! Surface Water Inlet
! Chlorine Dosing Control
! Surface Water Outlet
! Secondary Chlorination
! Process Water Monitoring

OPTIONAL FEATURES DESCRIPTION OF OPERATION

The membraned polarographic probe, is enhanced with a third, reference, electrode which eliminates zero drift. Correction of pH is often not required. Where it is required there are options for using carbon dioxide or a more traditional acid buffer. A Total Residual Chlorine measurement probe option is also available. The CRA3500 offers numerous communication protocols including Bluetooth (optional), TCP/IP (with webserver), USB, RS485, TTL, Relays and 4-20mA outputs. It is possible to interface and control the CRA3500 remotely, enabling data, alarms and setup information to be sent directly to your computer, PDA or mobile phone.

Typical Probe Response to pH (Unbuffered) 6 6991 Peachtree Industrial Boulevard, Building 600Norcross, GA 30092 USA PH: 770.449.6233 Chlorine Probe Response Typical Amperometric Probe Response US: 800.442.8722 FX: 770.447.0889www.chemtrac.com Percentage Response 020406080100120 0204060 80100120 66.577.588.599.510 66.577.588.599.510 820 pH pH