Water analyzer W761-DAS2

electrolyteleadchlorine

Product Overview 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 W761-DAS2 excels in standard water treatment—from municipal drinking water to industrial process water—where extreme conditions are absent. Working Principle W761-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 - Manufacturing: Designed and manufactured in China, following international quality standards and certified processes. - OEM/ODM: Customized solutions and private labeling available for global clients. - Certifications: Products meet CE, RoHS, and other international certifications. - Shipping: Fast and reliable delivery via major international couriers. - Samples: Product samples available before bulk orders. - Lead Time: Standard products ship within 5–7 days after order confirmation; customized products may take longer. - Support: 24/7 technical support, product guidance, and warranty service. - International Support: Remote technical assistance, English manuals, and prompt solutions for global clients. - Ordering: Orders can be placed via website inquiry or email, with professional guidance provided. - Why Choose Us: Over 30 years of manufacturing experience, advanced technology, strict quality control, and global customer service. Characteristics / Technical Specifications - Model: W761-DAS2 - Measurement: Free Chlorine or Chlorine Dioxide - Sensor Type: Amperometric, potentiostatic 3-electrode system - Housing: PVC-U - Temperature Range: 0...+50°C - Pressure: Up to 8 bar - Output: Analog (0...±2 V, 4...20 mA), Digital (Modbus RTU) - pH Range: 5 - 9 (for chlorine) - Response Time: ≈ 30 seconds - Maintenance: Optional RV1 cleaning accessory - Storage: Can be stored dry, no electrolyte required