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Measure iron in water -
0 to 5 ppm


Iron is one of the predominant chemical species in ground water. Iron in water can cause staining of laundry and porcelain. The removal of iron from raw water is one of the important processes of a water treatment facility.

The Tytronics'® Sentinel Iron analyzer is used in two locations in a water treatment plant:

  • Raw water for inlet protection and process control

  • Final water to meet governmental concentration limits.


Tytronics’ Sentinel is an on-line colorimetric analyzer that measures phosphate using methods that duplicate the procedures from the Standard Methods for the Examination of Water and Wastewater, APHA, AWWA, WEF. The instrument uses a batch sampling technique that allows the use of 0.25” tubing for sample lines so small amounts of solids will not affect instrument performance.

Other advantages of batch sampling are: that analytical results are not affected by sample and reagent flows, and analyses are only performed as frequently as required, minimizing reagent consumption.


  • Provides continuous on-line analysis of water or wastewater stream;

  • Ensures maximum reliability;

  • Ease of maintenance, rugged design;

  • Self-checking for easy diagnostics;

  • Minimizes sampling requirements;

  • Multiple communication ports, including bi-directional RS 232.


The total iron content is measured by the insitu reduction of ferric ions [Fe(III)] to ferrous ions [Fe(II)] and reaction with Ferrozine or Phenanthroline, accepted methods for examination of water and wastewater

iron in water

Enhanced Features of Tytronics’ Sentinel:

  • Programmable from 1 to 10 methods for a single analysis compound;

  • Up to 3 different calibration methods;

  • Eight relay outputs, multi-programmable on each relay;

  • Alarm functions, including sample flow, reagent level detection;

  • From 1 to 6 stream configurations standard.

Use our Tytronics Sentinel for measuring iron in water

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