A7417 Online Free Chlorine Analyzer

To Real-time monitoring of free chlorine in water, based on electrochmical sensing technology, with simultaneous measurement of pH and temperature.

Key Features

Real-Time Multi-Parameter Monitoring Simultaneously displays Free Chlorine, HOCl, OCl⁻, pH, and temperature for comprehensive water quality analysis.

Electrochemical Measurement Technology No chemical reagents required, reducing operational costs and environmental impact.

High Measurement Accuracy Equipped with high-quality chlorine and pH sensors to ensure long-term stability and precision.

pH & Temperature Compensation Automatic compensation ensures reliable and accurate chlorine measurements under varying conditions.

User-Friendly Interface 4.3” color touchscreen with intuitive graphical interface for easy calibration and operation.

Stable Flow System Integrated electronic rotameter and constant-level sampling chamber ensure stable sample conditions.

Automatic Cleaning Device Self-rotating cleaning device minimizes fouling and extends sensor lifespan.

Data Logging Function Built-in memory capable of storing over 100,000 data records.

Product Introduction

The A7417 operates based on electrochemical sensing technology. When hypochlorous acid (HOCl) or other oxidizing disinfectants react on the electrode surface, an electrical current proportional to the concentration is generated. The system converts this signal into concentration values through high-precision signal processing, with automatic pH and temperature compensation, providing accurate and real-time monitoring results.

Typical Applications

Drinking Water Treatment
Swimming Pools & Recreational Water
Food & Beverage Processing
Healthcare & Disinfection Systems
Cooling Water & Circulation Systems.

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Technical Specifications
Model	A7417
Housing	IP65 protection class, wall-mounted with corrosion-resistant PP panel
Dimensions	W650* H410* D134mm
Function	Uses electrochemical electrode method for online measurement of free chlorine (Free Cl₂) in water.
Controller	The controller features a touch-screen HMI, a 24-bit high-speed single-chip processor, and a digital filter for noise immunity, while its stable analog circuitry enhances measurement accuracy.
Measurable	Free Chlorine (Free Cl₂), HOCl (Hypochlorous Acid), OCl⁻ (Hypochlorite Ion), pH, Temperature, Flow Rate
Measuring Range	Free Chlorine 0–1 mg/L, 1–3 mg/L, 3–5 mg/L, 0-20mg/L; pH 0–14 ; Temperature 0–50°C
Accuracy	Free Chlorine ±3% or 0.05 mg/L; pH ±0.01 ; Temperature ±0.1°C
Resolution	Free Chlorine 0.01 mg/L ; pH 0.01 ; Temperature 0.1°C
Response Time	< 60 seconds (real-time monitoring)
Material	Free chlorine sensor: platinum electrode, POM housing; pH sensor: POM housing.
Calibration	E Mark. Certificate No. 3X180605.KSIUN08


Auto-Cleaning	Self-rotating cleaning head for continuous anti-fouling operation d, to ensure longer lifespan
Operating Temp	0–60°C / 5–95% RH (non-condensing)
Display	4.3”LCD color touch panel display.
Electrical Conditions	Power supply range: 90~240VAC
Environmental Conditions	Ambient operating temperature: 0 - 40°C Ambient operating humidity: Up to 95% RH non-condensing
Sample Condition	0–50°C, ≤200 μm suspended solids
Outputs	2 × alarm outputs, 2 × 4–20 mA outputs, RS485 Modbus (optional)
Data Storage	>100,000 records, USB data export supported

Chemmit Analytical Solutions ADD : 5F-2, No.286-2, Sin-Ya Rd., Cheng-Chen Dist., Kaohsiung City 806, Taiwan
TEL : +886 7 815 5899 FAX : +886 7 815 5896 E-MAIL : sales@chemmit-analytical.com