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Wall Mounted pH Controller with Single Setpoint and Proportional Dosage
  • Single setpoint for proportional dosage of acid or alkaline solutions
  • Simple calibration and accurate setting
  • User selectable isolated output

HI 9910 is a pH controller with a single setpoint for proportional dosage of acid or alkaline solutions. Any pH electrode ending in a BNC connector can be directly attached to the controller. The proportional control can be fine tuned through two dials on the front panel. The time cycle is adjustable from 0 to 90 seconds and the proportional band from 0.0 to 2.0 pH. Coarse and fine as well as offset and slope trimmers make accurate setting and calibration easy and convenient. A pump or electro-valve can be wired directly to the controller and be powered through the terminals. The HI 9910 also provides for an alarm relay. The alarm is activated when the measurements stray away from the setpoint by a pre determined value in the 0.5 to 2.5 pH range. A max. dosing time from 1 to 10 minutes can also be set, after which the alarm is activated to warn of an abnormality. The alarm can be configured in either normally-closed or normally-open state.

 

HI 9910 also provides an isolated output signal which is user selectable between 0-20 or 4-20 mA. A dial on the front panel renders manual temperature compensation fast and easy. For automatic compensation, hook up a 3 wire Pt100 to the controller. To speed up wiring, the HI 9910 comes with extractable terminal modules. Once wired up, the compartment containing the connections is protected behind a fire-retardant ABS panel. Several LEDs show whether the setpoint or alarm relays are activated from a distance.

 

HI 9910 is supplied complete with instructions.




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HI 9910 : Industrial Grade pH Controller with Single Set point and Proportional Dosage
HI9910-1HI 9910 : Industrial Grade pH Controller with Single Set point and Proportional Dosage
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$595.00 $595.00 More Details

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