CL-201 Online Residual Chlorine Or Total Chlorine Analyzer | DPD Colorimetric Method

  CL-201 Online Residual Chlorine or Total Chlorine Analyzer | DPD Colorimetric Method

CL-201 uses DPD colorimetric method for online residual chlorine and total chlorine measurement. 7-inch touchscreen, 30-day reagent life, auto-cleaning, 4-20mA + MODBUS RS485, ideal for drinking water, circulating water, wastewater.

Product Overview

Measurement Principle

Key Features

• DPD standard colorimetric method ensures high accuracy

• 7-inch touchscreen display for easy operation

• 30-day continuous operation without reagent replacement, low operating cost (Base on recycle)

• Automatic cleaning function reduces manual maintenance

• Data storage and SD card data export supported

• Reagent shortage alarm function

• Continuous measurement and periodic measurement (adjustable)

• Dual power supply: AC220V / DC24V

• Supports external trigger measurement

• Relay output for external water pump control

• 4-20mA analog output + MODBUS RS485 communication

Technical Specifications

Applications

• Drinking water supply network & tap water chlorination process

• Circulating cooling water

• Wastewater disinfection and discharge monitoring

• Industrial water treatment chlorine monitoring

General FAQs

1. What is the CL‑201 analyzer used for?

   The CL‑201 is an online colorimetric analyzer used to measure residual chlorine or total chlorine in drinking water, tap water networks, circulating cooling water, and wastewater disinfection systems.

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3. What measurement method does CL‑201 use?

   It uses the DPD standard colorimetric method, the most widely accepted and accurate method for online chlorine measurement.

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5. What is the measurement range of CL‑201?

• Residual chlorine: 0–10 mg/L

• Total chlorine: 0–10 mg/L or 0–20 mg/L

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2. What is the accuracy of CL‑201?

• 0–5 mg/L: ±5% of reading or ±0.03 mg/L Cl₂ (whichever is greater)

• 5–10 / 20 mg/L: ±10%

Operation & Maintenance FAQs

1. How long can the reagent last?

2. The reagent supports 30 days of continuous operation without replacement, greatly reducing maintenance cost. (Base on recycle)
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4. Does CL‑201 require frequent cleaning?

   No. It has a built‑in automatic cleaning function to minimize manual maintenance.

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6. Does it support data recording and export?

   Yes. It supports data storage and SD card data export for audit and compliance.

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8. Does it have reagent low alarm?

   Yes. The CL‑201 includes a reagent shortage alarm to remind users to replace reagents in advance.

Installation & Power FAQs

1. What power supply does CL‑201 support?

   It supports dual power supply: AC220V ±10%  or DC24V.
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3. What are the sample water requirements?

• Flow rate: 200–400 mL/min

• Inlet pressure: 0.1–5 bar

• Temperature: 5–40 °C

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2. How to install CL‑201?

   It is designed for wall‑mounted installation. Dimensions: 350×177×450 mm; Weight: ~16 kg.

Output & Communication FAQs

1. What outputs does CL‑201 support?

• 4–20 mA analog output

• MODBUS RS485 communication

• 2 relay outputs for concentration alarm

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2. Can it control an external dosing pump?

   Yes. The relay output supports direct control of external chlorination pumps.

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4. Does it support external trigger measurement?

   Yes, it supports external trigger measurement for flexible process control.

Application FAQs

1. Is CL‑201 suitable for drinking water networks?

   Yes. It is widely used in municipal drinking water pipe networks and tap water chlorination processes.
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3. Can it be used in wastewater and cooling water?

   Yes. It is ideal for circulating cooling water and wastewater disinfection monitoring.

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5. What is the minimum detection limit?

   The detection limit is 0.03 mg/L, suitable for low‑level chlorine monitoring.

Calibration & Reliability FAQs

1. How to calibrate CL‑201?

   It uses a default calibration curve for fast and stable calibration without complex steps.

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3. What is the repeatability?

   Repeatability: ±5%, ensuring stable long‑term measurement.

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5. What is the operating environment range?

   Sample temperature: 5–40 °C; Storage temperature: −15–60 °C.

Keywords

#CL201 #ChlorineAnalyzer #ResidualChlorine #TotalChlorine #WaterQuality #OnlineAnalyzer #DPDMethod #DrinkingWater #WastewaterTreatment #IndustrialWater #WaterMonitoring #MODBUS #RS485 #WaterTreatment