Water analyzer W781

chlorinesprayconductivity

Equipped with Swiss sensors, the analyzer boasts high measurement accuracy, fast response time, and low maintenance costs. It features a 7-inch touch screen with a user-friendly human-machine interface, outputs 4-20mA (optional) standard signals and RS485 signals, and can connect to various regulators. For instance, it can be linked to two-position regulators, time-proportioning regulators, non-linear regulators, and classic PID regulators (per customer requirements) to form diverse chlorine dioxide control systems. Application fields include tap water and rural drinking water, etc. Working principle The entire measurement system mainly consists of two parts: the instrument and the sensor. The instrument displays the disinfectant value (main measured value), the pH value of the aqueous solution (a pH electrode is required for optional configuration), and the working status. It outputs analog, digital, and switching signals. The sensor adopts Swiss-technology sensors with MEMS micro-electronic measurement principles, featuring high accuracy and low maintenance. Application fields Tap water, rural drinking water, etc. Functional Features - Imported sensors come as standard, ensuring high measurement accuracy. - Thanks to MEMS semiconductor technology, the measured values are not affected by flow rate or pressure. - It features a 7-inch touch-screen display and adheres to the standard MODBUS RS485 communication protocol. - No calibration is required for the first use, and it requires low maintenance. Technical Parameters Measurement - Measuring parameters: Chlorine/chlorine dioxide - Range: 0.01～2mg/L; 0.01～5.00mg/L - Measure the lower limit: 0.01mg/L - Resolution: 0.01mg/L - Definition (@25℃, PH7.2): - X 0.1 mg/L: absolute error ± 0.01 mg/L - 0.1 X 2 mg/L: ± 5% of the measured value or ± 0.03 mg/L (take the larger value) - 2 < X ≤ 5 mg/L: ± 5% of the measured value or ± 0.25 mg/L (take the larger value) - Response time: <30s (90%, 20℃) - Drift: About -0.5% per month (after calibration at 25℃ and pH = 7.2) - PH: 5.0～9.0 - Maintenance cycle: 180 Days - Range of conductivity: ≥50μS/cm Electrical - Display: 7-Inch touch screen - Data storage: Automatic storage function and data protection in case of power off. It can store data for a total of 10 years. - Power supply: 105～235VAC±10%, 50±1Hz - Power: ≤10W - Analog output: 4 ~ 20 mA (load resistance: 500 Ω) - Digital output: The RS485 Interface, and the MODBUS RTU protocol - Relay output: Two-way relays Physical property - Material: Steel plate spray plastic - Size: 400×300×180mm (height, width and thickness) - Weight: 9kg Environmental performance - Flow rate: In the flow chamber: 250 ~ 500 mL/min - Protection levels: IP56 - Water pressure: ≤4bar - Humidity: <90%, with no condensation - Working temperature: Instrument: 0℃ ~55℃; water temperature: 0.1℃ ~45℃ FAQ – Frequently Asked Questions - Products are designed and manufactured in China, following international quality standards and certified processes. - OEM/ODM services and private labeling are available for international clients. - Products are compliant with CE, RoHS, and other international certifications. - Fast and reliable delivery via major international couriers. - Product samples are available before bulk orders. - Standard products ship within 5–7 days after order confirmation; customized products may take longer. - 24/7 technical support, product guidance, and warranty service are provided. - Remote technical assistance, English manuals, and prompt solutions for international clients. - Orders can be placed via email or website inquiry with professional guidance. - Over 30 years of manufacturing experience, advanced technology, strict quality control, and global customer service. Key Specifications / Technical Features - Swiss MEMS sensor technology for high accuracy and low maintenance - 7-inch touch screen, MODBUS RS485 communication - Measurement range: 0.01–2mg/L or 0.01–5mg/L (chlorine/chlorine dioxide) - Resolution: 0.01mg/L - Response time: <30s (90%, 20℃) - Maintenance cycle: 180 days - Protection: IP56, ≤4bar water pressure - Operating temperature: 0–55℃ (instrument), 0.1–45℃ (water) - Power supply: 105–235VAC, ≤10W - Analog and digital outputs, two-way relay - Size: 400×300×180mm; Weight: 9kg