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Disinfection: MCL

Source: Emerson

Disinfection: Model MCL

The MCL monochloramine system is intended for the determination of monochloramine in fresh water

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Datasheet: MCL

The MCL monochloramine system is intended for the determination of monochloramine in fresh water.

The MCL uses a membrane-covered amperometric sensor. A polarizing voltage applied to a gold mesh cathode behind the membrane reduces the monochloramine diffusing through the membrane and keeps the concentration of monochloramine in the sensor equal to zero. The current generated by the cathode reaction is proportional to the rate of diffusion of monochloramine through the membrane. Because the concentration of monochloramine in the sensor is zero, the diffusion rate and the current are proportional to the concentration of monochloramine in the sample.

Diffusion rate also depends on membrane permeability, which is a function of temperature. An RTD in the sensor continuously measures the temperature of the sample and the analyzer automatically corrects the raw sensor current for temperature changes.

Maintenance is fast and easy. Replacing a membrane requires no special tools or fixtures. A screw cap holds the pre-tensioned membrane in place. Replacing the electrolyte solution takes only minutes.

The MCL includes the easy-to-use Model 1055 analyzer. The analyzer features two fully programmable 4-20 mA outputs and three fully programmable relays. The back-lit, two line display allows the user to read monochloramine concentration at a glance.

Valves, rotameters, and pressure regulators to control sample flow are things of the past with the MCL. A constant head overflow sampler ensures the correct sample flow to each sensor. To eliminate wiring hassles, quick-disconnect Variopol cable is standard.

Stable monochloramine standards do not exist. The monochloramine sensor must be calibrated using the results of a laboratory test run on a grab sample.

  • NO REAGENTS NEEDED.
  • COMPLETE SYSTEM INCLUDES sensor, connecting cable, analyzer, and flow controller.
  • VARIOPOL QUICK-DISCONNECT FITTINGS make replacing sensor easy.
  • FEATURE-PACKED ANALYZER: dual outputs, three fully-programmable alarm relays, two-line display.

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Datasheet: MCL

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