Waterline Fe10/Fe20 (Iron)


Process analyzers for the determination of dissolved iron (Fe2+, Fe3+)

The WATERLINE Fe10 and Fe20 process photometers can be used for the monitoring and control of the dissolved iron (Fe2+, Fe3+) concentration in water. Measurement principle is the photometric determination of iron by forming a Pyridyl-Triazine compley (WATERLINE Fe10) or by forming a 1,10-Phenanthrolin complex (WATERLINE Fe20).

Main applications for the photometers are the monitoring of the iron concentration in drinking water, waste water and process water.

The analyzers consist of a control unit with touchscreen and an analysis unit with measuring chamber, valve, dosing pumps and all required tube connections. The control unit includes a microprocessor which controls the automatic measurement incl. sampling, rinsing, reagent dosing and surveillance of the photodetection system.

  • Automatic measurement incl. self-test and drift compensation
  • Easy operation via touchscreen
  • Adjustable limit value and alarm value
  • Programmable analog output (0/4-20 mA), optionally with USB port for easy data storage
  • Adjustable break time between two analysis
  • External start/stop of an analysis possible
  • No external calibration required
  • External plug connections (IP65) for alarm relay, limit relay, analysis relay, external start/stop, analog output 0/4-20 mA
  • Multi range power supply (110–230 Volt, 50–60 Hz)
  • Including polycarbonate wall cabinet
Parameter Iron (dissolved, sum Fe2+, Fe3+)
Description Automatic microprocessor controlled analyzer for the photometric determination of total dissolved iron
Typical Applications Control of industrial effluent of steel facilities; corrosion control in closed water cycles; analysis of drinking water
Analysis Method: Photometric determination of dissolved iron with PyridylTriazine Photometric determination of dissolved iron with Phenanthrolin
Analyzer type WATERLINE Fe10 WATERLINE Fe20
Measuring Range 10 – 500 ppb 0,1 – 20,0 ppm
Resolution 1 ppb 0,1 ppm
Accuracy 2 % of end value
Reproducibility 1 % of end value
Zero-point Stability automatic adjustment
Number of Samples 1
Operating Pressure0,1 - 10 bar
Temperature5 - 30 °C
Sample Volume25 ml per analysis (excluding rinsing)
Sample Conditionclear, filtrated
Chemical DemandspH 6-8
Drainpressure free into open drain
Number 3 1
Storage Temp.0 – 30°C 5 – 25°C
Usage/analysis appr. 0,8 ml/ each reagent appr. 0,54 ml
Reagent volume250 ml / 250 ml / 250 ml 500 ml
Suitable for appr. 300 analysis appr. 925 analysis
Cycle (approx.)4 - 7 min
Sample interval1 – 99 min or external start/stop