Online ozone measurement has become a critical component in modern water treatment, ensuring that disinfectant levels are precise, safe, and compliant with international standards. Accurate measurement of ozone in water allows operators to maintain microbial control, prevent chemical overuse, and comply with regulations such as the WHO Guidelines for Drinking-Water Quality, the Safe Drinking Water Act (SDWA) in the United States, and China’s GB 5749-2022. While the exact concentration limits for ozone and chlorine dioxide differ between countries, the objective remains consistent: provide safe, high-quality drinking water. Instruments like the ERUN Water Quality Ozone Online Monitor (ERUN-SZ1-A-K3) enable real-time monitoring to achieve these goals efficiently and reliably.
An ozone analyzer is designed to continuously monitor ozone levels in water, ensuring that treatment processes remain within safe and effective ranges. Excessive ozone can increase operational costs, corrode equipment, and produce unwanted by-products, whereas insufficient ozone may fail to inactivate harmful microorganisms. International guidelines emphasize continuous monitoring to balance safety and efficacy:
l WHO Guidelines recommend optimizing residual ozone levels to maximize microbial inactivation without exceeding safe chemical exposure.
l SDWA mandates enforceable limits on residual disinfectants in the U.S., ensuring compliance and public safety.
l GB 5749-2022 defines allowable ranges for ozone and chlorine dioxide in drinking water, which sometimes differ from international thresholds, highlighting the need for localized monitoring.
Through online ozone measurement, water operators can ensure compliance, optimize dosing, and maintain consistent water quality across treatment systems.
Modern ozone analyzers use advanced technologies, such as the constant pressure method, to provide precise and rapid measurements. This method avoids frequent sensor replacement and simplifies maintenance, offering reliable performance in continuous water treatment operations.
The ERUN-SZ1-A-K3 Water Quality Ozone Online Monitor demonstrates these advantages with its intelligent design:
1. Measurement Range: 0–20 mg/L (ppm)
2. Resolution: 0.01 mg/L
3. Accuracy: ±1%FS
4. Protection Rating: IP65
5. Communication: RS485 ModBus, 4–20 mA analog output
6. Alarm Function: 2–4 relays for high/low points
7. Display: Large dot-matrix LCD with multi-parameter simultaneous display
Its non-membrane constant voltage sensor eliminates the need for diaphragms or chemical reagents, while providing rapid response and high sensitivity. The controller supports automatic/manual temperature compensation, multi-parameter display, and a watchdog function to prevent system downtime. Factory settings can be restored easily, and power-down protection ensures stable operation over years of use.
Feature | Specification |
Measurement Range | 0–20 mg/L (ppm) |
Resolution | 0.01 mg/L |
Accuracy | ±1%FS |
Display | Large dot-matrix LCD, multi-parameter |
Protection | IP65 |
Communication | RS485 ModBus, 4–20 mA analog output |
Alarm Function | 2–4 relays for high/low points |
Power Supply | AC220V / DC24V |
Implementing online ozone measurement in water treatment facilities enhances operational control and ensures regulatory compliance. Real-time data enables operators to maintain residual ozone within prescribed limits, reducing the risk of microbial contamination and unnecessary chemical use. The ERUN-SZ1-A-K3 further supports process optimization by displaying multiple parameters simultaneously, including ozone concentration, temperature, analog outputs, and alarm points, allowing for rapid, informed decision-making.
This technology not only ensures adherence to international and domestic standards but also helps optimize chemical dosing, reduce operational costs, and maintain consistent water quality. By integrating online ozone measurement, water treatment systems achieve safer drinking water with higher efficiency and lower maintenance requirements.
Maintaining safe and effective water treatment relies on precise online ozone measurement. Tools like the ERUN-SZ1-A-K3 provide accurate, real-time monitoring to comply with WHO, SDWA, and GB 5749-2022 standards. Their high sensitivity, stability, and user-friendly design make them indispensable for modern water treatment operations, enabling operators to ensure safe, high-quality drinking water every day.
Effective water treatment requires consistent monitoring and control of ozone levels, and online ozone measurement provides the solution. By using advanced instruments like the ERUN-SZ1-A-K3, facilities can maintain compliance with both international and domestic standards, improve operational efficiency, and protect public health. Real-time data and automated alerts allow for timely adjustments, ensuring that water remains safe, clean, and reliable. The integration of modern ozone analyzers reinforces confidence in water quality management while reducing chemical waste and maintenance demands.
