The CWA-Cl is an online free/total chlorine analyzer that measures free/total chlorine in water using the DPD colorimetric method. The automatic DPD pumps reagents into the water sample for reaction and determines the water concentration by colorimetry. By selecting different reagents, the analyzer can measure either free or total chlorine.
★ Key Performance Parameters：
| Parameter | Range | Accuracy | Resolution |
| Total Chlorine (optional) | 0-2 mg/L, 0-5 mg/L, 0-10 mg/L(optional) | 0-5 mg/L: ±5% R.D. or ±0.05 mg/L as Cl2 5-10 mg/L: ±10% R.D. as Cl2 |
0.001 mg/L |
| Free Chlorine (optional) | 0-2 mg/L, 0-5 mg/L, 0-10 mg/L(optional) | 0-5 mg/L: ±5% R.D. or ±0.05 mg/L as Cl2 5-10 mg/L: ±10% R.D. as Cl2 |
0.001 mg/L |
Reagent Selection
| Name | Description | Model | Capacity |
| Free Chlorine Reagent | Free Chlorine Analysis Reagent+ Buffer Reagent | WAR-DPD-FCl | 500ml+500ml
|
| Total Chlorine Reagent | Total Chlorine Analysis Reagent+ Buffer Reagent | WAR-DPD-TCl | 500ml+500ml |
Specification:
| Measurement Method | DPD method |
|---|---|
| Dimension(H x W x D) | 450×350×200 mm |
| Weight | Approx. 9 kg |
| Power Requiremens | 100-240 VAC, 50/60 Hz |
| Power Consumption | 25W |
| Operating Temperature | 5 – 45 °C (41 – 113 °F) |
| Storage Temperature | 5 – 45 °C (41 – 113 °F) |
| Protection Class | IP65 |
| Humidity | 20 % – 95 %, indoor installation |
| Pressure | 0.2 – 2 bar |
| Tubing Requirements | Inlet/Outlet: 6 mm outer diameter |
| Communication | RS 485 (Modbus RTU), WiFi, 4G (optional), LoRa (Customizable) |
| Analog Output | 0/4 – 20 mA, Resolution: < 100 μA, Max. load: 750 Ω |
| Digital Input | 1~way I/O input (for start analysis/ flow switch) |
| Digital Output | 2 relays (max. 250 VAC / 30 VDC 3A) |
| Data Storage | 32G |
| Cable Length | 6 m (6.56 ft), Customizable length |
| Warranty | One year |