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.
advantages:- 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 | |
Sample | ||
---|---|---|
Operating Pressure | 0,1 - 10 bar | |
Temperature | 5 - 30 °C | |
Sample Volume | 25 ml per analysis (excluding rinsing) | |
Sample Condition | clear, filtrated | |
Chemical Demands | pH 6-8 | |
Drain | pressure free into open drain | |
Reagents | ||
Number | 3 | 1 |
Storage Temp. | 0 – 30°C | 5 – 25°C |
Usage/analysis | appr. 0,8 ml/ each reagent | appr. 0,54 ml |
Reagent volume | 250 ml / 250 ml / 250 ml | 500 ml |
Suitable for | appr. 300 analysis | appr. 925 analysis |
Analysis | ||
Cycle (approx.) | 4 - 7 min | |
Sample interval | 1 – 99 min or external start/stop |