PC6850 Industrial PH ORP Controller China Factory Suppliers

Looking for reliable China suppliers? Our factory provides the PC-6850 Industrial PH ORP controller, a double channel system for precise water quality monitoring in wastewater treatment, chemical, and pharmaceutical industries. Supports 4-20mA and Modbus RS485.

Product Details

Product Details

Contact Now

Contact Now

Product Details

The PC-6850 is a professional-grade, double-channel PH/ORP Controller engineered for high-precision water quality monitoring. Designed specifically for industrial water pollution prevention and environmental monitoring, this robust instrument provides simultaneous measurement and control of PH and Oxidation-Reduction Potential (ORP), ensuring your water treatment processes remain within strict regulatory and operational limits.

Featuring a high-resolution 128 64 dot matrix LCD and flexible output options, including Modbus RS485 and dual 4-20mA signals, the PC-6850 integrates seamlessly into automated PLC systems. Whether deployed in wastewater treatment plants or chemical processing facilities, its advanced temperature compensation and three-point calibration system guarantee unmatched accuracy and long-term stability in demanding environments.

Detailed Parameters

Measurement RangePH: 0.00~14.00 pH | ORP: -1200~+1200 mV Measurement AccuracyPH: ±0.1 pH | ORP: ±2mV
Temp. Compensation0–100 ℃ (Manual/Auto: NTC 10k, PT100, PT1000) Operating Temp.0~60℃ (Normal) / 0~100℃ (High Temp Sensor)
Sensor CompatibilityTwo/Three Composite PH sensor, ORP sensor CalibrationThree Point Calibration (4.00, 6.86, 9.18)
Output SignalDouble 4-20mA Isolated (Max resistance 750Ω) Control SignalHigh/Low Limit Alarm Contact (3A/250V AC, NO)
CommunicationModbus RS485 (Baud: 2400, 4800, 9600) Power SupplyAC220V±10% (Std), AC110V, DC24V, 12VDC (Opt)

Key Advantages

High Precision

Delivers professional accuracy with ±0.1 pH and ±2mV ORP readings for critical process control.

Thermal Stability

Automatic temperature compensation up to 100°C ensures consistent data across temperature fluctuations.

Dual Channel Control

Simultaneous monitoring of PH and ORP allows for comprehensive water quality management in one unit.

Clear Visualization

Equipped with a 12864 dot matrix LCD for intuitive real-time data display and easy navigation.

Flexible Integration

Supports RS485 Modbus and isolated 4-20mA outputs for seamless PLC and SCADA integration.

Industrial Design

Panel-mounted (92x92mm hole) design built for rugged industrial environments and easy installation.

Product Gallery

Management Platforms

Automated Dosing

Link the control relay to dosing pumps for automatic PH adjustment based on set limits.

Remote Monitoring

Utilize RS485 Modbus communication to track water quality from a central control room.

Threshold Alarms

Configure high and low limit alarms to prevent chemical overflows or water acidification.

PLC Integration

Standard 4-20mA outputs allow for seamless connection to any industrial PLC system.

Precise Calibration

Three-point calibration powder ensures the sensor remains accurate over long operation periods.

Power Versatility

Optional power supplies (DC24V/12V) allow for flexible installation in various power grids.

Investment Return Comparison

FeatureStandard ControllersPC-6850 System
Measurement ChannelsSingle ParameterDual (PH & ORP)
Calibration MethodTwo-point / ManualProfessional Three-point
ConnectivityAnalog OnlyRS485 Modbus + Analog
Temp. CompensationBasic/FixedDynamic (NTC/PT100/PT1000)
Operational LifeFrequent RecalibrationHigh Stability / Long Lifecycle

Frequently Asked Questions

Q: How does the PC-6850 handle temperature variations in water?

The PC-6850 features advanced temperature compensation (0–100 ℃) supporting NTC 10k, PT100, and PT1000 RTD sensors to ensure PH and ORP readings remain accurate regardless of water temperature changes.

Q: Can this controller be integrated into a central SCADA system?

Yes, it is fully compatible with SCADA and PLC systems via its Modbus RS485 communication interface (baud rates 2400, 4800, 9600) and dual isolated 4-20mA signal outputs.

Q: What is included in the PC-6850 full set?

The full set includes one PH/ORP controller, one PH and ORP sensor, an operation manual, a qualified certificate, a pair of controller fixed clamps, and a set of three calibration powder bags.

Q: How often should the three-point calibration be performed?

Calibration frequency depends on the water quality and sensor fouling; however, using the provided 4.00, 6.86, and 9.18 powders monthly is recommended for industrial water pollution monitoring to maintain ±0.1 pH accuracy.

Q: Is the 4-20mA output signal isolated?

Yes, the PC-6850 provides isolated and reversible transferable double 4-20mA signal outputs with a maximum circle resistance of 750Ω, preventing electrical interference in industrial settings.

Q: What installation dimensions are required for the panel mount?

The overall dimensions are 96×96×130mm, and the required hole dimensions for panel embedding are 92×92mm.

Ready to Optimize Your Water Quality Monitoring?

Contact Us

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.

* Name

* E-mail

Phone

*Message

FAQS

What's the MOQ?

Down Down

1set sample is available.

What's your price?

Down Down

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?

Down Down

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?

Down Down

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?

Down Down

We accept T/T, Paypal, Western Union, Alipay, credit card, wechat and other suitable payment.
                  
       
                

Related Products

right
right
WS-9300/9350

WS-9300/9350

WS-9200/9250

WS-9200/9250

WS-9200/9250

WS-9200/9250

JIRS-803C

JIRS-803C

JIRS-803C3

JIRS-803C3

JIRS-803C4

JIRS-803C4

JIRS-803C5

JIRS-803C5

Soil Sensor

Soil Sensor

Related News

right
right
Industrial RO UV Controller Guide for Pure Water Systems

Jun.13,2026

Industrial RO UV Controller Guide for Pure Water Systems

The Essential Guide to RO UV Controller for Pure Water Systems Achieving ultra-pure water requires more than just filtration; it demands precise management of sterilization and membrane protection. An ro uv controller serves as the central brain of a Reverse Osmosis and Ultraviolet disinfection system, ensuring that water quality remains consistent while protecting expensive components from premature failure. Whether you are managing an industrial plant or a commercial laboratory, understanding how to optimize your control system is key to operational efficiency. In this guide, we will explore the critical role of these controllers in modern water treatment and how they enhance the longevity

Importance of RO Plant Low Pressure Switch for Pump Safety

Jun.11,2026

Importance of RO Plant Low Pressure Switch for Pump Safety

Understanding the Importance of an RO Plant Low Pressure Switch In the complex ecosystem of water purification, ensuring the safety of high-pressure pumps is critical to preventing catastrophic system failure. The ro plant low pressure switch acts as the primary sentinel, monitoring the incoming feed water pressure to ensure the system does not run dry. Operating a Reverse Osmosis RO pump without sufficient water can lead to cavitation, overheating, and permanent membrane damage. This guide explores how these switches function, why they are indispensable for industrial water treatment, and how to select the right one for your specific operational needs.

Optimize Water Purification with RO Microcomputer Controller

Jun.09,2026

Optimize Water Purification with RO Microcomputer Controller

Optimizing Water Purification with an RO Microcomputer Controller In the modern era of water treatment, precision and automation are the keys to efficiency. The ro microcomputer controller serves as the brain of a Reverse Osmosis system, ensuring that every drop of water is processed with mathematical accuracy. By automating complex variables such as pressure, flow rate, and conductivity, these controllers eliminate human error and maximize membrane lifespan. Whether for industrial desalination or high-purity laboratory water, integrating an intelligent control system is no longer an optionit is a necessity for operational excellence.

Guide to Choosing the Right RO Controller for Water Purification

Apr.16,2026

Guide to Choosing the Right RO Controller for Water Purification

Maintaining a high-performance reverse osmosis system requires more than just quality membranes; it demands precise regulation. An ro controller serves as the brain of the entire operation, monitoring critical parameters such as conductivity, temperature, and flow rates to ensure the output water meets stringent purity standards. Without an efficient controller, systems are prone to membrane fouling, inefficient energy use, and inconsistent water quality. In this comprehensive guide, we will explore how these devices optimize water treatment processes and how to select the best model for your specific industrial or commercial needs.

Guide to Water Purity Using RO with TDS Controller Systems

Apr.09,2026

Guide to Water Purity Using RO with TDS Controller Systems

Achieving the perfect balance of mineral content and purity in drinking water is a challenge for many households and industrial facilities. A ro with tds controller offers a sophisticated solution by combining the rigorous filtration of Reverse Osmosis (RO) with the precision of a Total Dissolved Solids (TDS) adjustment system. While standard RO systems remove almost everything, including beneficial minerals, a TDS controller allows users to re-mineralize the water to a desired level. This ensures that the water is not only safe and pure but also tastes better and provides essential nutrients.

Understanding and Optimizing Reverse Osmosis Systems with a Controller

Apr.07,2026

Understanding and Optimizing Reverse Osmosis Systems with a Controller

In the world of water purification, reverse osmosis (RO) systems are a cornerstone for producing high-quality water for various applications, from drinking water to industrial processes. However, an RO system is only as effective as its control system. This is where the reverse osmosis controller comes into play. This critical component manages and optimizes the RO process, ensuring efficient operation, water quality, and system longevity.

Understanding the Vital Role of an RO System Controller for Optimal Performance

Apr.04,2026

Understanding the Vital Role of an RO System Controller for Optimal Performance

Reverse Osmosis (RO) systems are critical for purifying water across various industries, from residential applications to large-scale industrial processes. At the heart of a well-functioning RO system lies the RO system controller. This intelligent device monitors and regulates all key parameters of the RO process, ensuring optimal performance, efficiency, and water quality. This article delves into the functionalities, benefits, and selection criteria for choosing the right RO system controller, particularly focusing on those offered by Watequipments. Understanding its role is crucial for maximizing the lifespan and effectiveness of your RO investment.

Smart Water Treatment Solutions Using PH ORP Controller Systems

Mar.24,2026

Smart Water Treatment Solutions Using PH ORP Controller Systems

In modern water treatment and industrial fluid management, maintaining precise chemical balance is essential for safety, efficiency, and regulatory compliance.

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


en_USEnglish