Cl6850 Residual Chlorine Analyzer High Precision Water Quality Suppliers Factory in China

Looking for reliable water quality monitoring? Our Cl-6850 residual chlorine meter is a professional micro-type instrument from a leading China factory. Featuring advanced non-membrane sensors and RS-485 MODBUS communication, we are premier suppliers providing high-sensitivity, stable performance for drinking water plants, swimming pools, and industrial cooling systems.

Product Details

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Product Details

The Cl-6850 is a professional-grade Residual Chlorine Analyzer designed for high-precision water quality monitoring in industrial and environmental applications. Featuring a large LCD screen and an intuitive English menu, it provides simultaneous real-time display of residual chlorine levels, temperature, and output current, ensuring seamless oversight of water pollution prevention and treatment processes.

Engineered for reliability and stability, the Cl-6850 integrates advanced photoelectric isolation and a robust watchdog function to prevent system crashes. With flexible RS-485 MODBUS communication and adjustable 4-20mA current output, it integrates effortlessly into existing industrial control systems, providing critical data for automated water sampling and chemical dosing operations.

Detailed Parameters

Measuring Range	Residual Chlorine: 0-20.00mg/L(ppm), Temp: 0~60°C	Resolution	0.01mg/L, 0.1°C
Accuracy	Better than ±1% or ±0.01 mg/L, ±0.5°C	Temp Compensation	Manual/Automatic (0~60°C)
Control Interface	2 sets of ON/OFF relays (High/Low alarm), 1 set auto-cleaning	Signal Output	Optocoupler isolated 4~20mA signal output
Working Voltage	220VAC ±10%, 50/60Hz	Protection Level	IP65 Water and Dust Resistant
Dimensions	96×105×168 mm (Opening: 92×92mm)	Weight	0.9Kg

Key Advantages

Industrial Stability

Equipped with a hardware watchdog function to prevent crashes and power-off protection lasting over 10 years.

Precision Monitoring

High-resolution display of 0.01mg/L ensures accurate detection of chlorine levels for strict environmental compliance.

Intelligent Control

Customizable relay hysteresis prevents frequent switching, significantly extending the lifespan of your contactors.

Intuitive Interface

Large screen LCD with an English menu allows for rapid configuration and clear multi-parameter visualization.

Flexible Integration

Supports RS-485 MODBUS protocol and 4-20mA output for seamless connection to PLC and SCADA systems.

Easy Maintenance

Simplified calibration process and factory reset capabilities ensure long-term operational accuracy.

Product Gallery

Management Platforms

Real-time Monitoring

Simultaneous display of chlorine, temperature, and output current for total system transparency.

Automated Calibration

Effortless zero point and slope calibration to maintain high accuracy as sensors age.

Dual-Point Alarm

Configurable High-point and Low-point relays for immediate failure or overflow notification.

Thermal Compensation

Automatic NTC thermistor integration to eliminate temperature-induced measurement errors.

Remote Communication

Partial MODBUS compatibility via RS-485 for centralized water quality data management.

Cleaning Control

Dedicated third group of relays to drive automatic cleaning functions for sensor longevity.

Investment Return Comparison

Comparison Factor	Standard Meters	Cl-6850 Professional
Reliability	Prone to system freezes	Hardware Watchdog (No Crash)
Relay Life	Frequent switching wear	Adjustable Hysteresis Protection
Integration	Basic analog output	RS-485 MODBUS + Isolated 4-20mA
Maintenance	Frequent manual resets	10-Year Power-off Memory
Precision	Basic temperature correction	Auto NTC Compensation (±0.5°C)

Frequently Asked Questions

Q: How often should the Cl-6850 residual chlorine electrode be calibrated?

While the electrode is factory-calibrated, we recommend periodic calibration of the zero point and slope as the sensor ages to maintain optimal accuracy.

Q: Can this instrument be integrated into a PLC system?

Yes, the Cl-6850 supports both an isolated 4-20mA current output and an RS-485 interface compatible with the MODBUS protocol for easy PLC integration.

Q: What is the purpose of the relay hysteresis setting?

Hysteresis prevents the relays from switching on and off rapidly when the chlorine value fluctuates slightly around the set point, extending the equipment's lifespan.

Q: What is the minimum flow rate required for accurate on-line monitoring?

To ensure accurate and representative measurements, the measured medium should be kept at a constant flow rate with a minimum of 15 cm³/s.

Q: How does the automatic temperature compensation work?

When equipped with an NTC thermistor, the meter automatically measures the water temperature and adjusts the chlorine value to compensate for thermal drift.

Q: What protection level does the Cl-6850 provide for harsh environments?

The instrument features an IP65 protection rating, making it resistant to dust and water splashes, ideal for water treatment plant environments.

Looking for a High-Precision Chlorine Monitoring Solution?

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FAQS

What's the MOQ?

1set sample is available.

What's your price?

We quoted based on your products’ code and qty. We can offer different discount depending on qty.

I am not sure of the required product type, how to get quotation?

Please tell us the details of your project: Measuring range, temperature, pressure, If need relay control output, 4-20mA or Modbus RS485 output? We will choose suitable product type as per your project details and make quotation for you.

How long is your delivery time?

Most of our products are in stock. Generally, we can delivery to you within 2-3 working days. The big order’s delivery time will be determined according to the type and quantity of products ordered.

What’s your term of payment?

We accept T/T, Paypal, Western Union, Alipay, credit card, wechat and other suitable payment.

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