PHORP6850 Industrial pH ORP Controller China Factory and Suppliers

PHORP-6850 is a professional single-channel industrial online pH ORP controller from a leading China factory. Ideal for wastewater treatment and chemical processing, our suppliers provide this high-precision instrument for continuous water quality monitoring and PID control.

Product Details

Contact Now

Product Details

The PH/ORP-6850 is a professional-grade, single-channel industrial online controller designed for the continuous measurement and precise control of pH and ORP values in water. Engineered to meet the rigorous demands of water pollution prevention and monitoring, this instrument is indispensable for municipal wastewater treatment, chemical processing, printing and dyeing, pharmaceutical production, plating, and various environmental protection applications.

Designed for global versatility, the PH/ORP-6850 supports multiple power supply standards, including 220V AC, 110V AC, and safe low-voltage 24V AC/DC. With its high-performance CPU and robust electromagnetic compatibility, it ensures stable operation in harsh industrial environments, providing critical data for automated dosing and water quality management.

Detailed Parameters

Measurement Range	pH (0~14 pH); ORP (-1200~+1200 mV)	Accuracy	± 0.02 pH; ± 1 mV
Resolution	0.01 pH; 1 mV (0.1 mV optional)	Stability	≤ 0.02 pH/24hr; ≤ 3 mV/24hr
Temp. Compensation	0–120 ℃ (Manual / Automatic, PT1000RTD)	Signal Output	Isolated 4-20mA (Max circle resistance 750Ω)
Alarm Output	High/Low limit contact (3A/250V AC)	Display	128 64 Dot Matrix LCD with Backlight
Power Supply	AC220V / AC110V / DC24V (Consumption ≤3W)	Outline Dimension	96×96×127mm (H×W×D)

Key Advantages

Industrial Protection

Features ESD over-voltage protection and fused AC inputs to ensure long-term reliability in unstable power environments.

PID Precision Control

Integrated PID control actuates powered variable values via 4-20mA output for highly accurate automated dosing.

High Compatibility

Supports Modbus RS485 digital communication, making it easy to integrate into existing PLC or SCADA systems.

Smart LCD Interface

128x64 dot matrix display with adjustable brightness and power-saving timing mode for optimized visibility.

Flexible Compensation

Supports both automatic and manual temperature compensation (0-120℃) to eliminate thermal drift in readings.

Secure Management

Built-in password management prevents unauthorized personnel from altering critical calibration or alarm settings.

Product Gallery

Management Platforms

Probe Calibration

Intuitive menu-driven calibration for pH (4.00/6.86/9.18) and ORP standard solutions.

Relay & Alarm Setup

Customizable high/low limit set points and adjustable relay delay to prevent frequent switching.

RS485 Communication

Full Modbus protocol support for remote monitoring of water quality parameters.

Output Configuration

Precision mapping of 4-20mA signals to specific pH or ORP ranges for PLC integration.

PID Parameter Tuning

Adjustable P, I, and D values to fine-tune chemical dosing responses and stability.

System Maintenance

Factory reset options and password security to maintain instrument integrity over time.

Investment Return Comparison

Feature Metric	Standard Controllers	PH/ORP-6850 System
Measurement Stability	Moderate (Higher Drift)	High (≤0.02 pH/24hr)
Control Logic	Simple On/Off Relay	Advanced PID Variable Control
Integration Capability	Analog Only	Analog 4-20mA + RS485 Modbus
Power Versatility	Single Voltage	Multi-Voltage (110V/220V/24V)
Operational Life	Basic Protection	ESD & Over-voltage Protected

Frequently Asked Questions

Q: How often should the pH probe be calibrated for industrial water monitoring?

For high-precision industrial applications, we recommend periodic calibration using standard buffer solutions (4.00, 6.86, and 9.18 pH) to compensate for probe aging and ensure measurement accuracy.

Q: What is the purpose of PID control in a pH/ORP controller?

PID (Proportional-Integral-Derivative) control allows the controller to adjust chemical dosing pumps proportionally to the error, preventing "overshooting" the target pH value and ensuring a stable water chemistry environment.

Q: Can this instrument be used in highly corrosive chemical environments?

Yes, the PH/ORP-6850 is designed for chemical and plating industries. However, avoid long-term exposure of the probe to protein solutions or acidic fluoride, and use proper cleaning agents like 0.1m HCl for the ceramic core.

Q: Why are my pH readings unstable or slow to respond?

Unstable readings often indicate a wet probe cable or a polluted ceramic core. Slow response usually means the probe's thin film is contaminated. Cleaning the probe with 0.1m HCl often resolves these issues.

Q: How do I install the probe to avoid air bubbles?

Install the probe vertically in the active water flow. Ensure the outlet port is higher than the inlet port to keep the probe fully submerged and prevent air bubbles from collecting on the sensor surface.

Q: Does the PH/ORP-6850 support remote data logging?

Yes, through the optional RS485 Modbus digital communication output, the instrument can be connected to a central management system or PLC for real-time data logging and remote monitoring.

Ready to Optimize Your Water Quality Monitoring?

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.