ECTDS500600 Industrial EC TDS Water Quality Controller China Factory Suppliers

Professional ECTDS-500600 series for industrial on-line conductivity and TDS measurement. Ideal for pharmacy, chemical, and food industries. Leading China factory and suppliers providing high-precision water quality control solutions.

Product Details

Contact Now

Product Details

The EC/TDS-500/600 series represents a professional-grade solution for precise water quality monitoring, specifically engineered for the measurement of Electrical Conductivity (EC) and Total Dissolved Solids (TDS). These controllers integrate high-precision sensing technology with a robust industrial design, ensuring reliable performance in challenging water pollution prevention and control environments.

Designed for seamless integration into industrial pipelines, the system features advanced digital temperature compensation and flexible output options including 4-20mA and RS485. Whether you are managing RO system controllers or industrial wastewater treatment, the EC/TDS-500/600 provides the stability and accuracy required to maintain stringent water quality standards and operational efficiency.

Detailed Parameters

Measuring Range	0-200uS/cm, 0-2000uS/cm, 0-20mS, 0-200mS, 0-2000ppm, 0-5000ppm	Accuracy	1.5% (Full Scale)
Stability	±2×10-3(FS)/24h	Display Mode	High-Clarity LCD
Output Signal	Insulated active output 4-20mA (≤ 500Ω) / RS485	Control Output	Max/Min constantly open contact point (3A/AC250V)
Temp. Compensation	Digital compensation based on 25℃ datum point	Working Pressure	0～0.5MPa
Power Supply	AC 220V±10% or AC 110V±10% (50/60Hz)	Dimensions	48×96×100mm (Height×Width×Depth)

Key Advantages

Industrial Durability

Built to withstand harsh industrial environments with a robust housing and stable performance under varying pressures.

High Stability

Maintains exceptional long-term stability of ±2×10-3(FS) per 24 hours for consistent data logging.

Precision Sensing

Equipped with 1.0cm-1 electrodes (optional 0.1cm-1) to ensure high-accuracy conductivity readings.

Intuitive Interface

Clear LCD display with a streamlined soft-key menu for easy parameter adjustment and calibration.

Smart Compensation

Automatic digital temperature compensation ensures measurement accuracy regardless of medium temperature changes.

Flexible Integration

Supports RS485 Modbus and 4-20mA analog signals for seamless PLC and SCADA system integration.

Product Gallery

Management Platforms

Unit Configuration

Easily switch between ppm and uS measuring units via the integrated software menu.

Relay Thresholds

Customizable High/Low limit settings for precise alarm triggering and relay control.

Alarm Delay

Configurable delay timers to prevent false alarms caused by temporary signal fluctuations.

Analog Mapping

Define exact conductivity values for 4mA and 20mA output for perfect PLC scaling.

RS485 Networking

Adjustable device addresses and baud rates for multi-node network communication.

Field Calibration

Dedicated calibration menu for maintaining sensor accuracy without removing the device.

Investment Return Comparison

Feature	Standard Manual Meters	EC/TDS-500/600 Series
Monitoring Type	Intermittent/Manual	Continuous/Real-time
Data Accuracy	Operator Dependent	High-Precision Digital
System Integration	None (Standalone)	Full PLC/RS485 Support
Labor Cost	High (Regular Sampling)	Low (Automated Alerts)
Risk Management	Reactive (After Error)	Proactive (Instant Alarm)

Frequently Asked Questions

Q: How should the conductivity electrodes be installed for maximum accuracy?

Electrodes should be installed at the lowest point of the pipeline where flow is steady and air bubbles are minimal. Ensure the sensor is fully submerged in moving water to avoid air pockets.

Q: Can the EC/TDS-500/600 be integrated into a centralized control system?

Yes, it supports both 4-20mA analog outputs and RS485 digital communication, making it compatible with most industrial PLCs, SCADA systems, and remote monitoring platforms.

Q: How does temperature compensation work in this device?

The instrument uses digital temperature compensation based on a 25℃ datum point, automatically adjusting the conductivity reading to account for temperature-induced variations in the medium.

Q: What maintenance is required for the measuring electrodes?

Avoid dismantling or altering the electrode shape. Do not clean them with strong acids or alkalis as this can change the electrode constant and affect measurement accuracy.

Q: What is the difference between the EC and TDS measurement modes?

Electrical Conductivity (EC) measures the ability of water to conduct electricity, while Total Dissolved Solids (TDS) estimates the total concentration of dissolved substances. The controller allows switching between these units.

Q: How do I prevent signal interference in the measuring cables?

Measuring cables carry weak electrical signals; they must be wired separately and should not be grouped with high-voltage power cables or control wires to avoid electromagnetic interference.

Ready to optimize your water quality monitoring system?

Get in Touch

If you are interested in our products, you can choose to leave your information here, and we will be in touch with you shortly.

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.

Related News

Jul.01,2026

Guide to Ensuring Water Purity for drinking water tds Monitoring

Ensuring Water Purity: The Ultimate Guide for Drinking Water TDS Monitoring Maintaining high water quality standards is essential for public health and industrial safety. One of the most critical metrics for assessing water purity is Total Dissolved Solids TDS, which represents the combined content of all inorganic and organic substances dissolved in water. Utilizing high-precision equipment for drinking water tds measurement allows facilities to detect contamination and ensure that filtration systems are operating at peak efficiency. In this guide, we will explore the technical aspects of TDS monitoring and how advanced transmitters provide the reliability needed for modern environmental monitoring.

Jun.29,2026

Understanding the Conversion of Electrical Conductivity to TDS

Understanding the Conversion of Electrical Conductivity to TDS In water quality analysis, measuring the purity of a liquid often involves understanding the relationship between electrical conductivity to tds Total Dissolved Solids. While conductivity measures the ability of water to pass an electrical currentwhich is directly influenced by the concentration of ionized substancesTDS represents the total amount of mobile charged ions, including minerals, salts, or metals dissolved in a given volume of water. For professionals in environmental monitoring and water treatment, mastering this conversion is essential for maintaining system efficiency and ensuring regulatory compliance.

Jun.27,2026

Industrial Guide to Electrical Conductivity Salt Water Monitoring

Understanding Electrical Conductivity Salt Water Monitoring for Industrial Precision In the realm of water quality analysis, measuring the electrical conductivity salt water levels is a critical process for maintaining industrial efficiency and environmental safety. Conductivity serves as a direct indicator of the concentration of dissolved ions, which is essential for industries ranging from desalination plants to chemical manufacturing. Accurate monitoring prevents equipment corrosion, ensures product purity, and supports regulatory compliance. By utilizing advanced instrumentation, operators can achieve real-time insights into salt concentrations, allowing for immediate adjustments in water treatment processes to avoid costly downtime.

Jun.26,2026

Technical Guide to Industrial ec meter circuit Design and Use

Understanding the EC Meter Circuit: The Heart of Water Quality Analysis Electrical Conductivity EC is a fundamental parameter in environmental monitoring, aquaculture, and industrial water treatment. At the core of every reliable measurement device is a sophisticated ec meter circuit , which converts the physical conductance of a liquid into a precise digital reading. Whether you are managing a boilers deoxygenation process or monitoring nutrient levels in hydroponics, understanding how the circuit handles signal amplification and temperature compensation is key to ensuring data accuracy. This guide explores the technical intricacies of EC circuitry and how it integrates into professional water quality controllers.

Jun.25,2026

Professional Guide to drinking water testing for tds and Purity

Drinking Water Testing for TDS: Ensuring Pure and Safe Water Quality Maintaining high water quality is essential for both health and industrial efficiency. When performing drinking water testing for tds , professionals seek to measure the Total Dissolved Solids TDS, which indicates the concentration of dissolved inorganic salts and organic matter in water. Whether you are managing a municipal water plant or a high-precision industrial facility, understanding the conductivity and TDS levels is the first step toward effective water treatment. In this guide, we explore the technical aspects of TDS measurement and the advanced instrumentation required for accurate monitoring.

Jun.23,2026

Industrial TDS Controller Machine for Water Quality Management

Maintaining precise water purity is critical for various industrial, agricultural, and domestic applications. A tds controller machine serves as the brain of a water treatment system, continuously monitoring Total Dissolved Solids TDS to ensure that water quality remains within specified limits. Whether you are managing a hydroponic farm, a pharmaceutical lab, or a large-scale reverse osmosis plant, having an automated way to regulate mineral concentrations is essential for efficiency and product consistency. In this guide, we will explore how these machines work and why they are indispensable for modern water management.

Jun.21,2026

Optimize Water Purity with a TDS Controller in RO System

Maximizing Water Purity: The Role of a TDS Controller in RO System Achieving consistent water quality is the primary goal of any reverse osmosis setup. A tds controller in ro system acts as the brain of the filtration process, monitoring Total Dissolved Solids TDS in real-time to ensure the output meets specific purity standards. Without precise control, users often face the dilemma of either wasting too much water or compromising on the purity of the drinking or process water. By integrating an intelligent controller, you can automate the blending process, extending the life of your membranes while maintaining a perfect balance of minerals.

Jun.20,2026

Optimize Water Quality Using a tds controller for ro Systems

Optimizing Water Purity with a TDS Controller for RO Systems Maintaining the ideal balance of minerals in purified water is critical for both industrial processes and residential health. A tds controller for ro acts as the brain of a Reverse Osmosis system, ensuring that Total Dissolved Solids TDS remain within a precise range. Without an effective controller, RO systems can either strip too many essential minerals or allow contaminants to leak through as membranes age. This guide explores how these devices function, their importance in water treatment, and how to choose the right model for your specific needs to ensure consistent water quality.