4630 Free Chlorine Analyzer System

GF SignetSKU: 3-4630-13

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0.02 to 2 ppm with pH sensor, DC power, 4630 Chlorine Analyzer System
Sale price$5,214.00
Non-Stock Item - Ordered as needed. Contact us if you need more information.

Note: Priced . Sold in quantities of 1.

0.02 to 2 ppm with pH sensor, DC power, 4630 Chlorine Analyzer System
0.02 to 2 ppm with pH sensor, 100 to 240 VAC, 4630 Chlorine Analyzer System
0.05 to 5 ppm with pH sensor, 100 to 240 VAC, 4630 Chlorine Analyzer System
0.01 to 20 ppm with pH sensor, 100 to 240 VAC, 4630 Chlorine Analyzer System

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The GF 4630 Free Chlorine Analyzer System is an integrated all-in-one system designed to measure free chlorine. The 3-4630 Free Chlorine Analyzer with pH sensor is used to accurately calculate free chlorine in applications that have varying pH values (±0.20 pH units).

The advanced 9950-X Chlorine Controller includes a new feature called the "Chemical Guard" relay control. Because free chlorine concentration is pH dependent, the Chemical Guard feature interrupts/disables the relay that is assigned to the oxidant chemical (such as sodium hypochlorite) until the pH of the application is corrected. The 4630 series also comes complete with a flow switch that will disable the mechanical relays to the dosing pumps when the system is off or flow is interrupted to the flow cell.

The unique integrated clear flow cell accommodates the free chlorine and pH electrode, flow regulator, filter and variable area flow indicator in one compact unit. An integrated flow regulator with removable filter accepts inlet pressures of 1 to 8 bar (15 to 120 psi), while maintaining constant flow and minimal pressure to the sensors.

Water flow is controlled and directed vertically into the sensor tips eliminating the build up of air bubbles that can cause inaccurate measurement. The flow cell is also designed to maintain a minimum amount of water to ensure sensors stay submerged, even when the system and flow is turned off.

The 4630 Free Chlorine Analyzer System comes complete with everything needed to support chlorine monitoring for 1 full year of operation. Panel design allows quick and easy installation and comes complete with four 4 to 20 mA outputs, flow switch with relay interrupt, four binary inputs and two mechanical relays. The 9950-X can also be used with the optional 3-9950.395-M (159 001 905) Modbus Module.

  • EPA 334.0 Compliant
  • Reagent free measuring
  • Chemical Guard prevents over dosing of oxidants chemicals
  • Built in flow switch
  • Chlorine and pH electrode performance data
  • Automatic time stamp after successful calibration
  • Customer enabled alarm feature for recalibration
  • Complete panel system allows for quick and easy installation
  • Built-in flow regulator maintains constant flow and pressure to the sensors regardless of inlet pressure
  • Automatic pH compensation

Applications - Residual Chlorine Monitoring:
  • Water Distribution
  • Ground Water
  • Surface Water
  • HVAC Applications (cooling water)
  • Food and Beverage
  • Swimming Pools
  • Water Parks

EPA Compliant According to Method 334.0
The 3-4630 Free Chlorine Analyzer System can be used for reporting chlorine residuals in accordance with EPA Method 334.0


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