Smart Online Water Quality Monitoring System for Boiler, Drinking & Pool Water

For Boiler, Drinking & Pool Water | Real-Time Multi-Parameter Analysis

CE, RoHS & ISO 9001 Certified

1. Market Overview

The global water quality monitoring systems market has been experiencing robust growth:

Valued at approximately USD 5.89 billion in 2025
Projected to reach USD 10.88 billion by 2034
Growing at a CAGR of 7.63%

As industries and municipalities worldwide face increasingly stringent water quality regulations, the demand for reliable, real-time online monitoring solutions has never been greater. Whether you operate industrial boilers, manage municipal drinking water networks, or maintain public swimming pools, having continuous, accurate visibility into your water chemistry is no longer a luxury—it is an operational necessity.

2. What Is an Online Water Quality Monitoring System?

An online water quality monitoring system is an integrated analytical platform designed for continuous, real-time measurement of multiple water parameters.

24/7 unattended operation at key monitoring points
Key components: sensing units, control/display unit, power supply, communication modules
Eliminates manual sampling and delayed laboratory results
Deployable on boiler feedwater lines, drinking water pipelines, pool circulation systems

3. Key Monitored Parameters

A comprehensive online water quality monitoring system supports accurate measurement of these critical parameters:

Parameter	Core Function
Hardness	Prevents scale formation in boilers and heat exchangers
Total Alkalinity / Phenolphthalein Alkalinity	Assesses pH buffering capacity for boiler water chemistry
COD	Indicates organic pollution for wastewater and surface water
Ammonia Nitrogen	Monitors contamination in industrial discharge and drinking sources
Residual Chlorine (Free & Total)	Verifies disinfection efficacy for drinking water and pools
Turbidity	Measures water clarity and particulate contamination
pH	Fundamental acidity/alkalinity control
Conductivity / TDS	Evaluates water purity and dissolved solids
Dissolved Oxygen	Controls boiler corrosion and supports ecosystem monitoring

4. Three Critical Application Scenarios

4.1 Boiler Water Monitoring

Suitable for all boiler types: oil-fired, gas-fired, coal-fired, biomass, electric, and waste heat recovery boilers.

Monitors: raw water, deionized water, supplemental water, condensate, steam return water
Complies with GB/T 1576-2018 industrial boiler water quality standards
Parameters: hardness, alkalinity, pH, conductivity, turbidity, DO, iron, oil, phosphate

4.2 Drinking Water & Municipal Supply

Ensures compliance with potable water health regulations.

Instant contamination detection
Real-time compliance documentation
Optimizes water treatment processes
Key parameters: residual chlorine, turbidity, pH, conductivity, COD, ammonia nitrogen

4.3 Swimming Pool & Spa Water

Maintains bather safety and extends equipment service life.

Real-time readings: free chlorine, pH, ORP, turbidity, temperature
Automates chemical dosing
Reduces manual testing labor

5. Model: ERUN-SZ-C40 – Core Technical Features

Industrial-grade online water quality analyzer for boiler, drinking water, and pool applications.

Flexible Parameter ConfigurationHardness, total alkalinity, phenolphthalein alkalinity, pH, conductivity, TDS, turbidity, dissolved oxygen, iron ions, oil content, phosphates.
Advanced CommunicationRS232, RS485 (Modbus RTU), RJ45, 4–20 mA analog I/O; optional wireless + ERUN cloud platform.
High Protection RatingMain unit: IP65; Sensors: IP68 for harsh and submerged environments.
User-Friendly HMI7-inch LCD touch screen with LED backlight for real-time data display.
Compact & InstallableDimensions: 300 mm (W) × 420 mm (H) × 240 mm (D); Weight: < 15 kg.
Low MaintenanceMinimum maintenance cycle: ≥ 168 hours per parameter.

6. Global Compliance & Quality Assurance

Erun Environmental Protection ensures full international regulatory compliance:

CE CertificationConforms to EU Low Voltage Directive (2014/35/EU) and EMC Directive (2014/30/EU).
RoHS ComplianceRestricts hazardous substances in accordance with EU 2011/65/EU & 2015/863.
ISO 9001:2015Consistent quality, standardized processes, continuous improvement in design, manufacturing, and service.

7. Conclusion

With tightening global water quality regulations and rising operational risk control demands, investing in a CE-certified, RoHS-compliant online water quality monitoring system is a strategic choice.

Erun’s ERUN-SZ-C40 delivers the accuracy, durability, and parameter flexibility required for boiler water, drinking water, and swimming pool operations.

8. Contact & Resources

Full specifications: https://www.erunwas.com/products-detail/id-238.html
For inquiries and quotes: contact Erun Environmental Protection

Erun Environmental Protection — Your trusted partner in intelligent online water quality monitoring solutions for industry, municipalities, and recreation.