Water analyzer W501-DCP4.0

chlorinealuminumspray

The Online Total Chlorine Analyzer is equipped with a directly imported German-made CP4.0 sensor, utilizing special osmotic membrane technology that resists chemical interference (mainly from surfactants), reduces pH dependence, and is not restricted by water quality. It features fast response, stable performance, low cost, minimal maintenance, and provides reliable, accurate data. The instrument includes an LCD screen, intelligent Chinese/English menu operation, analog 4-20mA and digital RS485 outputs, freely settable measurement range, high/low limit alarms, three sets of relay control switches, adjustable hysteresis range, and multiple electrode auto-calibration methods.Application Fields:Tap water: 0 - 2mg/LSwimming pool water: 0 - 5mg/L for the measurement of cyanuric acidMedical water: 0 - 0.5mg/L; conductivity as low as 10μS/cmSewage treatment: 0 - 20mg/LSeawater: conductivity up to 50mS/cmHigh-salt seawater: brine or seawater with a concentration greater than 3.5% (>50mS), and the salt content can be up to approximately 26%Working Principle:The measurement system consists of two parts: the instrument W501 and the CP4.0 sensor. The instrument displays the total chlorine value (main measured value), the pH value of the aqueous solution (optional pH electrode), and the working status. It outputs signals such as analog, digital, and switch quantities. The sensor is an original imported RG brand from Germany and works on the principle of the film-covered three (dual) - electrode constant current method, with anti-interference and anti-pollution characteristics. The sensor is not restricted by water quality conditions and can be applied in various industries.Functional Features:Dual-channel access for configuration according to requirements.Enables plug-and-play of sensors, making electrode installation and replacement quick and convenient.The interface has a simple operation, reducing operational errors and ensuring reliable results.Visual operation on the LCD screen with a rich and comprehensive interface.Equipped with multiple data output methods such as 4-20mA and MODBUS RS485.The controller supports wall-mounting / panel-mounting / pipe-clip mounting.Made of aluminum alloy, it has high strength, oxidation resistance, and corrosion resistance, enhancing its texture and market attractiveness.Technical Parameters:SpecificationDetailed informationMeasurement ParametersTotal Chlorine, pH (optional)Measuring Ranges0.005–0.500mg/L; 0.005–2.000mg/L; 0.05–5.00mg/L; 0.05–10.00mg/L; 0.05–20.00mg/LLower Limit of Measurement0.005mg/L (depending on the electrode)Resolution0.001mg/L (depending on the measuring range)Accuracy (@25℃, pH 7.2)0-1ppm: ±2% of measured value or ±0.03ppm (larger one); 1-2ppm: ±2% or ±0.03ppm; 0-10ppm: ±2% or ±0.3ppm; 10-20ppm: ±5% or ±0.5ppmResponse timeT90 ≈ 2-3 minutesRepeatability≤3%DriftApprox. -1% per month (after calibration at 25℃ and pH 7.2)PH range4.0 - 12.0 (depending on the electrode)Maintenance CycleThe replacement cycle of the membrane cap is one year (depending on water quality)Flow rateIn the flow chamber: 250 - 500mL/minOperating temperature0 - 45℃DisplayLCD liquid-crystal screenPower supply105–235VAC, 50±1Hz / 24VDC±5% (DC is optional)Power≤12W (including the sensor)Analog OutputTwo ways of analog outputs (load resistance < 500Ω)Digital outputRS485 interface, MODBUS RTU protocolRelay outputThree-way relay 5A 250VAC, 5A 30VDCMaterialBottom shell: Cast aluminum with plastic spray coating; Top cover: PA66 + 30GF with paint coatingSize145*145*174mm (H*W*D)Weight1.8kg (Not including the sensor)Waterway interface2-inch or 3-inch hose (custom made)Protection levelIP65Water pressure≤6 bar (matching a pressure-reducing valve with the instrument)Working humidity<90%, no condensationWorking temperatureInstrument: -15℃–50℃; sensor water temperature: 0.1℃–45℃Storage temperatureInstrument: -20°C–60°C; sensor: 0.1°C–55°CFAQ – Frequently Asked QuestionsProducts 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 and English manuals are available 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.Characteristics / Technical Specifications:Model: W501-DCP4.0Sensor: CP4.0 (German-made, RG brand)Measurement: Total Chlorine, pH (optional)Measuring range: 0.005–20.00mg/L (various sub-ranges)Resolution: 0.001mg/LAccuracy: ±2% or ±0.03ppm (0-2ppm), ±2% or ±0.3ppm (0-10ppm), ±5% or ±0.5ppm (10-20ppm)Response time: T90 ≈ 2-3 minRepeatability: ≤3%Drift: -1%/monthPH range: 4.0–12.0Maintenance: Membrane cap replacement cycle 1 yearFlow rate: 250–500mL/minOperating temp: 0–45℃ (sensor), -15–50℃ (instrument)Display: LCDPower: 105–235VAC/24VDC, ≤12WOutputs: 4-20mA, RS485 MODBUS, 3 relaysMaterial: Cast aluminum, PA66+30GFSize: 145*145*174mmWeight: 1.8kg (without sensor)Protection: IP65Water pressure: ≤6 bar