Hangzhou Qiwei Instrument Co., Ltd. is one of the leading manufacturers and suppliers of online industrial orp contorller in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk online industrial orp contorller in stock here from our factory. We also accept customized orders.
The online industrial ORP controller is designed to provide continuous ORP monitoring and signal feedback for industrial water treatment processes. In addition to displaying real-time ORP values, it provides a 4–20 mA isolated output and high/low limit relay alarm contacts for connection with external control equipment.
product key technologies
This industrial online ORP meter is used for real‑time monitoring of oxidation‑reduction potential (ORP) in water systems. It is widely applied in wastewater treatment, drinking water disinfection, electroplating, chemical processing, swimming pools, cooling water circulation and other industrial scenarios.
Equipped with a high‑sensitivity ORP electrode, the meter features stable signal output, strong anti‑interference capability, and long‑term reliable online operation. It supports continuous measurement, alarm output, analog transmission and digital communication, enabling automatic control of dosing systems and water treatment processes.
With a rugged industrial design, high and low temperature resistance, and easy installation and maintenance, it provides stable and accurate ORP data to ensure process safety and compliance with water quality standards.
Technical parameter
|
Measurement Range |
PH (0-14 ); ORP (± 1900 mV) |
|
Accuracy |
+0.02 PH; +1 mV |
|
Resolution |
0.01 PH; 1mV |
|
Stability |
≤ 0.02 PH/24 h; ≤ 3 mV/24 hours |
|
Solution |
PH 4.00/6.86/9.18 or PH 4.00/7.00/10.01 |
|
Display Mode |
128×64 dot matrix LCD |
|
Temperature Compensation |
0-100 °C manual/automatic (NTC10K) |
|
Signal Output |
4-20mA isolation protection output; maximum loop resistance 300Ω |
|
Alarm Output |
One set of high and low limit alarm contacts (3A/250V AC), normally open contact relay |
|
Power Supply |
AC 220V ± 10% 50Hz |
|
Power Consumption |
≤ 3 W |
|
Ambient Conditions |
(1) Temperature 0 ~ 60 °C; (2) Humidity ≤ 85% RH |
|
Size |
96×96×110 mm |
|
Opening Size |
92×92 mm |
PLC Integration for Industrial ORP Monitoring
ORP measurement data can be used to integrate a consolidated process monitoring system for industrial water treatment projects using the controller's isolated 4- to 20 mA output.
Connection of digital signals
An industrial data acquisition component or a suitable PLC analog input channel can be connected to the 4- to 20 mA output. The ORP signal is received by the PLC, who displays, records, or processes the assessment value using the installed scaling relationship.
The project engineer should check the PLC insight type, signal range, loop resistance, and electric isolation requirements before wiring. The outcome of this controller's 4 to 20 mA has a maximum loop resistance of 300 mA.
Connection of Relay Signal
According to electronic ratings and wiring requirements, the high and low limit relay contacts may be connected to appropriate physical alarm circuits or PLC online input channels. The automation system can now recognize ORP limit problems and start predefined alarms.
Factors for System Integration
What components make up a normal integration plan:
Measures the procedure water's oxidation-reduction potential.
Online ORP controller displays the assessment results and provides both analog and relay signals.
Receives assessment and alarm signals from a PLC or data acquisition system.
Operates according to the outside system's control logic. Dosing pumps or control valve.
When a task is included, the process values, alarm status, and operating records are displayed.
According to the particular process requirements, the PLC program, the dosing sequence, and the communication architecture should be created. Before task implementation, please contact our professional team to validate signal compatibility and wiring details.
Request Technical Support for Your ORP Control Project
Are you trying to find an online ORP controller for a project involving chemical dosing or industrial water treatment?
For distributors, water treatment contractors, equipment makers, and industrial system integrators, QiweiLab facilitates technical communication and product selection.
Please include the following details so that we can assess your application:
Use: Electroplating, disinfection, wastewater treatment, and other industrial procedures.
Measurement requirements include operational circumstances and the target ORP range.
Signal requirements include relay alarms, 4–20 mA output, and other interface specifications.
Control equipment includes PLC models, dosing pump specifications, and control cabinet specs.
Installation environment: Wall mounting, panel mounting, or other installation circumstances.
Before providing a quote, our staff can assist in reviewing the measurement range, output compatibility, and installation requirements of the instrument.
FAQ
1. Can the online industrial ORP controller control a chemical dosing pump?
High/low reduce circuit contacts are provided by the controller, which has an isolated 4-20 mA output. For medication system coordination, these signals may be connected to appropriate external control equipment. The outside PLC or control unit's control logic determines the operation and dosing adjustments for the automatic pump.
2. Can this ORP controller be connected to a PLC?
Yes. The circuit contacts can be used for appropriate concern or digital input circuits while the 4-20 mA output can be connected to a suitable PLC analog input. Before connecting, please check the PLC insight specifications and electrical requirements.
3. What is the maximum loop resistance of the 4–20 mA output?
The specified maximum loop resistance is 300Ω. The connected equipment and cable arrangement should be selected within this limit.
4. Does the controller support wall mounting and IP65 protection?
A 92×92 mm panel opening and a 96×96 mm housing are already listed in the published product specifications. Please contact our team to verify the enclosure protection rating and mounting accessories that are available for the desired configuration.
5. Can QiweiLab provide a complete ORP dosing control solution?
The ORP controller can provide measurement feedback and alarm signals for an external dosing control system. The complete configuration depends on the application, chemical dosing requirements, PLC or control unit, pump capacity and installation conditions. Contact our technical team for project evaluation
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