photometric analyzer with large measuring range and a high resolution for free and total chlorine with the DPD method according to the ISO and US EPA.
WTW’s 3017M DPD online chlorine analyzer continuously monitors free or total chlorine in drinking water or wastewater
applications using the EPA approved DPD colorimetric method.
• Accurate and reliable – Measures free or total chlorine in drinking water or municipal wastewater final effluent using the DPD colorimetric method. This highly accurate method of analysis provides reliable data for process optimization and reporting.
• Low maintenance – Flow Injection Analysis simplifies maintenance and saves you time. Simplified tubing and low reagent use reduces the frequency of instrument maintenance.
• Factory calibrated – Eliminates the need for regular calibration.
• ISO and EPA compliant – The 3017M measurement method conforms with standard method 4500-CL-G, ISO method 7393-2 and the US EPA method 334.0, which makes it suitable for drinking water permit reporting in many countries worldwide.
The 3017M is compliant with US EPA regulations 40 CFR 141.74 (drinkingwater) and 40 CFR 136.3 (wastewater).
Its high resolution allows the analyzer to deliver accurate measurements across its measuring range. The data can be transferred out via a 4 … 20 mA as well as via an RS485 MODBUS interface. The reagent switch is easy and quick, as the dry reagents are delivered in a container and only need to be filled with water to the mark.
| Accuracy | ±0.03 mg/l or ±5%, whichever is greater |
| Light Source | Class 1 LED; wavelength centered at 525 nm |
| Limit of detection (LOD) | 0.03 mg/l |
| Maintenance | <15 minutes per month to exchange reagents |
| Measurement Interval | Programmable; 2.5 … 60 minutes |
| Measurement Range | 0 … 5 mg/l free or total chlorine, reagent dependent |
| Reagent Consumption | ~30 days per bottle at a 2.5 minute measurement interval |
| Sample Flow Rate | 50 … 1,000 ml/min when using Sample Inlet Device |
| Sample Temperature Range | 5 … 45 °C (41 … 113 °F) |
| Unattended Runtime | > 30 days |
| Communication Capabilities | RS-485 Modbus or 4-20 mA output |
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