Residual chlorine meter

GWQ-CL800 Residual Chlorine Meter | GAIMC

Product Overview

The GWQ-CL800 is an online intelligent residual chlorine detector independently developed by GAIMC, adopting imported components and permeable membrane heads. Based on the latest polarographic analysis technology and advanced SMT surface mounting technology, it features long-term stable and reliable operation and high accuracy.

It supports simultaneous display of multiple parameters (pH, residual chlorine, temperature) and provides automatic/manual pH and temperature compensation functions. With relay high-low limit alarm, photoelectrically isolated analog signal output and RS485 communication, it is widely used for continuous monitoring and control of residual chlorine content in water solutions such as circulating water automatic dosing, drinking water treatment plants, water distribution networks, swimming pools, hospital wastewater and environmental protection water treatment projects.

Key Features

📊

Multi-parameter Simultaneous Display

Integrated display of residual chlorine, pH and temperature parameters for intuitive real-time monitoring.

🌡️

Dual Compensation Functions

Supports automatic/manual pH compensation (0~14pH) and temperature compensation (0~60°C) for accurate measurement.

🔔

Relay High-Low Limit Alarm

One set each for high and low limit alarms (220VAC 3A), realizing real-time abnormal alert.

📡

Isolated Signal Output

Photoelectrically isolated 4-20mA analog signal output (load <750Ω) and RS485 (Modbus-RTU) communication.

🔒

Reliable Protection Mechanisms

IP65 protection grade, watchdog anti-crash function and 10+ years power-off protection.

🎯

High Accuracy & Stability

Adopts imported components and polarographic technology, ensuring long-term stable operation and high measurement precision.

Technical Specifications

Item	Details
Model	GWQ-CL800
Measuring range	Residual chlorine: 0~20mg/L; pH: 0~14pH; Temperature: 0~60°C
Principle	Polarography
Resolution	Residual chlorine: 0.01mg/L; pH: 0.01pH; Temperature: 0.1°C
Accuracy	Residual chlorine: ±2% or ±0.02mg/L; pH: ±0.05pH; Temperature: ±0.5°C
Compensation function	Automatic/manual pH compensation (0~14pH); Automatic/manual temperature compensation (0~60°C)
Relay alarm	One set each for high and low limit alarms (220VAC 3A)
Signal output	4-20mA (photoelectric isolation), load <750Ω
Communication	RS485 (Modbus-RTU)
Working conditions	Ambient temperature: 0~60°C; Ambient humidity: ≤90%
Power supply	220VAC±10% 50/60Hz (Customized 24VDC)
Protection grade	IP65
Dimensions (mm)	100x106x168
Hole-cutting size (mm)	92*92
Electrode cable	Standard 5m (Customized)
Accessories	Flow cell, hose

Core Applications

🚰

Drinking Water Treatment

Residual chlorine monitoring in water treatment plants and drinking water distribution networks.

🏊

Swimming Pools

Real-time residual chlorine detection to ensure water quality safety for swimming.

🏥

Hospital Wastewater

Residual chlorine monitoring in hospital wastewater treatment processes.

♻️

Circulating Water Systems

Residual chlorine control for automatic dosing in industrial circulating water systems.

FAQ

What parameters can GWQ-CL800 measure simultaneously?

The GWQ-CL800 supports simultaneous display and measurement of three key parameters: residual chlorine (0~20mg/L), pH (0~14pH) and temperature (0~60°C), meeting comprehensive water quality monitoring needs.

What compensation functions does the instrument provide?

It provides dual compensation functions: automatic/manual pH compensation (0~14pH) and automatic/manual temperature compensation (0~60°C), ensuring accurate residual chlorine measurement under different water quality and temperature conditions.

What signal output and communication methods does GWQ-CL800 support?

The instrument supports photoelectrically isolated 4-20mA analog signal output (load <750Ω) and RS485 communication with Modbus-RTU protocol, facilitating connection with back-end control systems and remote monitoring.

What are the power supply and installation specifications of GWQ-CL800?

Power supply: 220VAC±10% 50/60Hz (customized 24VDC optional); Installation hole size: 92*92mm; Dimensions: 100x106x168mm; Electrode cable: standard 5m (customizable length).

Industrial Online Residual Chlorine Monitoring Solution

GWQ-CL800 intelligent residual chlorine meter supports multi-parameter simultaneous display, dual compensation functions and reliable alarm mechanisms.
Ideal for drinking water treatment, swimming pools, hospital wastewater and circulating water systems' residual chlorine monitoring needs.

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GWQ-CL800

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GWQ-CL800