Introduction:
CL-6850 is an industrial online multi-parameter water quality controller adopting advanced membrane-free constant voltage free chlorine sensor. It simultaneously monitors free chlorine, hypochlorous acid (HOCl), pH and water temperature in real time, with built-in automatic temperature & pH compensation to guarantee stable and accurate readings.
Equipped with dual limit relay control, isolated 4-20mA output and optional RS485 Modbus communication, it supports automatic dosing control for disinfection systems. Panel embedded installation with IP65 front panel, easy operation via English LCD menu.
Compared with traditional membrane polarographic chlorine electrodes, our constant voltage probe requires no regular replacement of diaphragms or electrolyte, cutting long-term maintenance cost greatly. Widely applied in swimming pools, drinking water plants, bottled water lines, cooling circulating water, RO water treatment, food & pharmaceutical water disinfection projects.
Main Characteristics:
Simultaneously measure Free Chlorine, HOCl, pH and Temperature
Manual & automatic pH and temperature compensation function
Clear LCD screen for multi‑parameter real‑time display
Isolated 4‑20 mA current output for signal transmission
High / low limit ON‑OFF relay control for automatic dosing
Panel embedded installation, cut‑out size: 91×91 mm
IP65 front‑panel protection grade, adapt to industrial harsh environment
Wide power supply: AC 110/220V, DC 12V /24V optional
Main Technical Specifications:
| Item | Parameter |
|---|
| Model | CL‑6850 |
| Measuring Range | Free Chlorine: 0‑20.00 mg/L
HOCl:0‑10.00 mg/L
pH:0‑14 pH
Temperature:0‑60 ℃ |
| Accuracy | Free Chlorine: ±1% or ±0.01 mg/L
HOCl: ±1% or ±0.01 mg/L
pH: ±0.02 pH
Temperature: ±0.5 ℃ |
| Display | LCD multi‑parameter display |
| Signal Output | Isolated 4‑20 mA |
| Control Output | High / Low limit ON/OFF relay |
| Power Supply | AC 110/220V±10% 50/60Hz; DC12V, DC24V |
| Overall Dimension | 96×96×115 mm(H×W×D) |
| Hole Size | 91×91 mm(H×W) |
| Installation | Panel embedded mounting |
| Protection Grade | IP65 |
| Working Ambient Temp | 0‑50 ℃; Humidity ≤90% |
Applications:
Widely applied for drinking water, bottled water, power plant, pharmaceutical, chemical, food & beverage, pulp‑paper, swimming pool and all kinds of water‑treatment projects