Online Multi-parameter Water Quality Monitor Analyzer for Drinking Water
Working Principle
The W750-CPT-DCL201 is a professional online multi-parameter monitor designed for drinking water quality supervision, providing accurate measurement of free chlorine, total chlorine, turbidity, pH, and temperature.
Free chlorine and total chlorine detection is based on the classic and highly reliable DPD colorimetric method.
N,N-diethyl-p-phenylenediamine (DPD) reacts with chlorine compounds in water to form a stable red-violet complex. The instrument measures its absorbance using a high-sensitivity optical detection system and converts the signal into precise concentration values according to the Lambert-Beer law.
Turbidity is measured using laser scattering technology, providing fast and sensitive response to fine suspended particles. Integrated pH and temperature sensors enable real-time synchronous monitoring, delivering a complete and targeted solution for drinking water quality assessment.
Product Features
● Scientific and Safe Structural Design
Two-layer front panel with separated water and electrical sections, eliminating risks such as short circuits caused by water ingress.
Modular analytical units allow flexible configuration based on monitoring needs and application scenarios.
10-inch high-definition resistive touchscreen with intuitive user interface; supports both Chinese and English.
● High Reliability & Automated Maintenance
Integrated automatic cleaning system for free chlorine/total chlorine (DPD method) with adjustable cleaning intervals to eliminate reagent residue interference.
Supports external digital flow and pressure sensors for enhanced process control.
Comprehensive system monitoring includes cabinet temperature & humidity control, operation log recording, alarm logging, calibration record management, and over-standard event alerts.
● Powerful Data Management Capabilities
Standard RS485 with MODBUS protocol, expandable to 4–20 mA or GPRS wireless transmission.
Stores up to 1,000,000 data records with fast USB export.
Optional remote control and remote parameter setting, greatly reducing the need for on-site visits.
● Stable Operation & Full System Protection
Built-in surge protection, power-off protection, and automatic recovery after power restoration.
Real-time self-diagnosis and alert functions.
IP56 protection rating, ensuring stable performance in demanding environments.
Application Scenarios
The W750-CPT-DCL201 is ideal for monitoring core drinking water safety indicators across a wide range of applications:
Water treatment plants: real-time residual chlorine monitoring for accurate disinfection control.
Secondary water supply systems: residential areas, office buildings, commercial complexes—monitor water quality variations and prevent secondary pollution.
Schools, kindergartens, hospitals: locations requiring stringent drinking water safety.
Food processing facilities: ensuring incoming water meets hygiene and safety standards.
Municipal pipeline networks: routine monitoring for pipeline maintenance and water quality management.
Key Technical Parameters
| Category | Specification |
|---|---|
| Measured Parameters | Free Chlorine / Total Chlorine (DPD), pH, Turbidity (Laser), Temperature |
| Display | 10-inch HD Color Touchscreen (Resistive) |
| Languages | Chinese, English |
| Power Supply | 105–235 VAC, 50±1 Hz; 9–36 VDC (Optional) |
| Operating Environment | 0–50°C; 0–85% RH (Non-condensing) |
| Storage Environment | 0–50°C; 0–90% RH (Non-condensing) |
| Sample Conditions | Temperature: 1–45°C; Flow: 300–500 mL/min (with flow statistics); Pressure: ≤0.4 MPa |
| Data Output | RS485 (MODBUS), optional 4–20 mA or GPRS |
| Data Storage | Up to 1,000,000 records; USB export |
| System Protection | Surge protection, power-off protection & auto-recovery, system diagnosis & alarms |
| Protection Rating | IP56 |
| Installation | Wall-mounted |
| Power Consumption | 37 W |
| Housing Material | 1.5 mm steel plate with powder coating; dual-layer PMMA window |
| Dimensions (H×W×D) | 750 × 550 × 260 mm |
| Certifications & Reports | Sensor CE, RoHS; Metrological Test Report available |
FAQ – Frequently Asked Questions
1. Where are your products manufactured?
Our products are proudly designed and manufactured in China, following international quality standards and certified processes.
2. Can you provide OEM/ODM services for international clients?
Yes, we offer customized solutions and private labeling to meet your brand’s needs worldwide.
3. Are your products compliant with international safety and quality standards?
Absolutely. Our products are tested to meet CE, RoHS, and other international certifications.
4. How do you handle shipping and delivery for overseas orders?
We cooperate with major international couriers to ensure fast and reliable delivery to your location.
5. Can I get product samples before placing a large order?
Yes, we provide samples so you can evaluate product quality before committing to bulk orders.
6. What is the typical lead time for production and delivery?
For standard products, we usually ship within 5–7 days after order confirmation. Customized products may take slightly longer.
7. How do you support clients after the purchase?
We offer 24/7 technical support, product guidance, and warranty service to ensure smooth operation.
8. Do you provide support for international clients after purchase?
Yes, we offer remote technical assistance, manuals in English, and prompt solutions to any issues, ensuring smooth use worldwide.
9. How can I place an order if I am located overseas?
You can contact our sales team directly via email or website inquiry. We provide professional guidance throughout the ordering process.
10. Why should I choose your company over other suppliers in China?
We combine over 30 years of manufacturing experience, advanced technology, strict quality control,
and global customer service to deliver reliable, high-quality solutions.
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