Colorimetric process analyzer (DPD-method) for measurement and dosing control of disinfectants such as free chlorine, monochloramine, total residual chlorine and combined chlorine.
- For the continuous online determination of disinfectants based on the DPD colorimetric method (EN ISO 7393-2; APHA 4500-Cl G).
- Measurement values : free chlorine, monochloramine, total residual chlorine, combined chlorine, flow and if installed pH and temperature.
- Complete system including measurement and control electronics, photometer, flow indicator, reaction chamber, reagent dosing system and reagent containers.
- Integrated pH measurement with temperature compensation (available as option).
- All usual dosing devices for disinfectants and pH control can be connected either through relays or analog output signals. Two independent controllers can operate simultaneously.
| Disinfectant measurement | Measuring range [ppm] | Accuracy | |
| Free Chlorine, monochlorine, total residual chlorine | 0.00 | 1.00 | ±0.01 ppm |
| 1.00 | 3.00 | ±0.06 ppm | |
| 3.00 | 5.00 | ±0.2 ppm | |
| Combined chlorine | Calculated difference of total residual chlorine and free chlorine. | ||
| Measurement time | 2 min. | ||
| Cycle time free chlorine | 1 ... 12 min. | ||
| Cycle time total residual chlorine | 6 ... 60 min. | ||
| pH measuring range | 2 ... 12 | ||
| Temperature measuring range | -30 ... 100 °C | ||
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Transmitter Specifications |
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| Power Supply | 100 ... 240 VAC, 50/60Hz or 24 VDC | ||
| Power consumption | max. 30 VA | ||
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Sample conditions |
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| Water consumption | min. 10 l/h | ||
| Water inlet pressure | 0.15 ... 2 bar | ||
| Sample temperature | 5 ... 50 °C | ||
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Panel |
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| Dimension | 400 x 850 x 200 mm | ||
| Material | PVC | ||
| Weight | 9.0 kg | ||
