NNETNOVA

WQA-154

Free Chlorine and Chlorine Dioxide Analyzer

Reagent-free three-electrode analyzer for free chlorine or ClO2 with pH and temperature compensation, stable even at zero chlorine.

Free chlorineChlorine dioxidepHThree-electrodeReagent-freeSelf-cleaningRS485
Request Information Talk to R&D
WQA-154 Free Chlorine and Chlorine Dioxide Analyzer
Water Quality Monitoring
Family
WQA Series
Category
Water Quality Monitoring
Parameters
Free chlorine or ClO2, pH
Chlorine range
0 to 2 mg/L (0 to 5 mg/L optional)

01Overview

Engineered for the field

A panel analyzer for disinfection control that measures free chlorine or chlorine dioxide together with pH. Its reagent-free three-electrode system stays accurate in difficult conditions such as zero chlorine or an interrupted supply, and built-in pH and temperature compensation sharpens every chlorine reading. Active stirring allows stable measurement at flows as low as 0.1 L/min, using only about 0.15 tonnes of water a day, and a self-cleaning electrode prevents fouling from sediment and colloids. The pH electrode is the only consumable, power draw is just 2 W, and data is shared over RS485 Modbus RTU.

02Key Features

What makes the WQA-154 different

01

Stable at zero chlorine

The three-electrode system keeps measuring accurately through zero chlorine and supply interruptions.

02

Built-in compensation

Integrated pH and temperature compensation for precise chlorine readings.

03

Low-flow operation

Active stirring gives stable readings from 0.1 L/min, using about 0.15 tonnes of water a day.

04

Self-cleaning electrode

Prevents fouling from sediment and colloids, extending maintenance intervals.

05

Low running cost

Reagent-free design with the pH electrode as the only consumable.

03Technical Specifications

Detailed specifications

Overview

Parameters
Free chlorine or ClO2, pH
Chlorine range
0 to 2 mg/L (0 to 5 mg/L optional)
Output
RS485, Modbus RTU
Power
9 to 27 V DC, 2 W

Measurement

Chlorine resolution
0.001 mg/L
Chlorine accuracy
±5% or ±0.03 mg/L (0 to 2 mg/L); ±10% (2 to 5 mg/L)
pH range
0 to 14
pH resolution
0.01
pH accuracy
±0.1

Sample

Sample flow rate
100 to 500 mL/min
Sample pressure
0.5 to 5 bar
Sample temperature
5 to 40 °C

Mechanical and Environment

Dimensions
34 × 58 × 15 cm (W × H × D)
Cable
2 m as standard; 10 m or 30 m optional
Operating temperature
0 to 40 °C
Relative humidity
0 to 95 %RH, non-condensing

04Applications

Built for these use cases

  • Use case 01

    Municipal water treatment plants

  • Use case 02

    Drinking water distribution networks

  • Use case 03

    Rural drinking water projects

  • Use case 04

    Wastewater and industrial water treatment

Industries

Deployed across these sectors

ManufacturingUtilitiesEnvironmental Monitoring

05Resources

Datasheets, manuals and technical documents

Documents are shared on request. Tell us which file you need and our team will send it to you.

  • WQA-154 Datasheet

    Datasheet

    Request

  • WQA-154 User Manual

    User Manual

    Request

06Related products

Complementary engineering