Water analyzer W761-DAS2

leadchlorinesignal

Equipped with a reliable, economical amperometric sensor for continuous measurement of free chlorine or chlorine dioxide in drinking water and process applications. With a durable PVC-U housing, it suits standard environments (≤50°C) by balancing performance and value. Its core potentiostatic three-electrode system ensures high accuracy and long-term signal stability, supporting effective disinfection control. Easy to integrate, it offers multiple electronic options: analog voltage, digital processing (analog/digital Modbus RTU), and 4-20 mA current loop. It features automatic temperature compensation and enables indefinite dry storage (no electrolyte), simplifying inventory management. As a cost-effective, reliable choice, the W771-DAS2 excels in standard water treatment—from municipal drinking water to industrial process water—where extreme conditions are absent. Working Principle W771-DAS2 contains a display instrument and a versatile and cost-effective amperometric sensor for continuous monitoring of free chlorine or chlorine dioxide. With its PVC-U housing, it is designed for reliable performance in standard drinking water and process water applications up to 50°C, providing a robust and economical solution for disinfection control. Application Fields - Disinfection control in municipal drinking water treatment plants. - Monitoring of chlorine levels in commercial and residential building water systems. - Process water treatment in various industrial settings (where temperature is ≤ 50°C). - Cooling water systems operating within standard temperature ranges. Functional Features - Cost-Effective & Robust: PVC-U housing provides durability for standard applications. - Precise Measurement: Potentiostatic 3-electrode amperometric system ensures accuracy. - Output Flexibility: Available in analog (voltage/4-20 mA) and digital Modbus RTU versions. - Optimized Maintenance: Optional RV1 cleaning accessory extends maintenance intervals. - Logistical Advantage: Can be stored dry (without electrolyte) indefinitely. Technical Parameters Parameter | Specification --- | --- Measurands | Free Chlorine (AS2-CL), Chlorine Dioxide (AS2-CD) Application Medium | Drinking Water, Process Water (up to 50°C) Housing Material | PVC-U Measuring Ranges (example) | CL (H): 0.005...2.000 ppm (without RV1) Output Signals | Analog: 0...±2 V, 4...20 mA; Digital: Modbus RTU Max. Working Pressure | 8 bar (with retaining ring in flow chamber) Operating Temperature | Water: 0...+50°C pH Range | CL: pH 5 - pH 9 Response Time (T90) | ≈ 30 seconds FAQ – Frequently Asked Questions 1. Where are your products manufactured? Our products are proudly designed and manufactured in China, following international quality standards and certified processes. 2. Can you provide OEM/ODM services for international clients? Yes, we offer customized solutions and private labeling to meet your brand’s needs worldwide. 3. Are your products compliant with international safety and quality standards? Absolutely. Our products are tested to meet CE, RoHS, and other international certifications. 4. How do you handle shipping and delivery for overseas orders? We cooperate with major international couriers to ensure fast and reliable delivery to your location. 5. Can I get product samples before placing a large order? Yes, we provide samples so you can evaluate product quality before committing to bulk orders. 6. What is the typical lead time for production and delivery? For standard products, we usually ship within 5–7 days after order confirmation. Customized products may take slightly longer. 7. How do you support clients after the purchase? We offer 24/7 technical support, product guidance, and warranty service to ensure smooth operation. 8. Do you provide support for international clients after purchase? Yes, we offer remote technical assistance, manuals in English, and prompt solutions to any issues, ensuring smooth use worldwide. 9. How can I place an order if I am located overseas? You can contact our sales team directly via email or website inquiry. We provide professional guidance throughout the ordering process. 10. Why should I choose your company over other suppliers in China? We combine over 30 years of manufacturing experience, advanced technology, strict quality control, and global customer service to deliver reliable, high-quality solutions. Model: W771-DAS2 Measurands: Free Chlorine (AS2-CL), Chlorine Dioxide (AS2-CD) Application Medium: Drinking Water, Process Water (up to 50°C) Housing Material: PVC-U Measuring Ranges: CL (H): 0.005...2.000 ppm (without RV1) Output Signals: Analog: 0...±2 V, 4...20 mA; Digital: Modbus RTU Max. Working Pressure: 8 bar (with retaining ring in flow chamber) Operating Temperature: Water: 0...+50°C pH Range: CL: pH 5 - pH 9 Response Time (T90): ≈ 30 seconds