Water and control objective
Identify disinfection, aeration, anoxic/anaerobic treatment, industrial reaction or outlet trend monitoring.
ORP · Sensors and online systems
Select online ORP measurement by range, water matrix and system interface
Two supplied technical files support structured ±2000 mV and ±1000 mV sensor configurations plus an online system with 4–20 mA, relays and Modbus RS485. The files do not state commercial model numbers, so none are invented.
2structured product groups
±1000 / ±2000 mVverified ranges
≤0.6 MPasensor pressure
2real project records
01 · Start with the process
ORP selection needs more than one mV value
ORP depends on the oxidation-reduction system in the water, electrode condition, temperature, fouling and installation. Range, material, mounting, cable and control interface must be confirmed together.
Normal and upset range
Provide normal operation, control setpoint and expected positive or negative peaks.
Temperature, pressure and mounting
Confirm continuous temperature, pressure, R3/4 or 3/4 NPT, insertion and maintenance access.
Controller and outputs
Specify an existing electrode input or a complete system with 4–20 mA, relays and Modbus RS485.
02 · Product architecture
Sensor series and online analyzer system
Both pages publish only values confirmed in the supplied Word files. Products without a commercial model are presented as verified configurations.
Sensors and electrodesORP sensor seriesSensors and electrodes
Two source-verified sensor constructions cover ±2000 mV standard service and a ±1000 mV economy configuration. The supplied documents do not state commercial model numbers, so no model number is invented.
±2000 / ±1000 mV≤0.6 MPa10 m standard cable
Online analyzer systemOnline ORP configurationOnline analyzer system
A source-verified controller-and-sensor system for continuous ORP monitoring in municipal water, wastewater, surface water and industrial processes. The source file does not state a commercial model number.
±2000 mV±5 mV3 × 4–20 mA / RS485
03 · Applications
Real online ORP monitoring records
The public images retain real project context while removing third-party equipment branding, company names and nameplates. All case copy on the English site is in English.
View full cases↗
2021 · Sichuan, China · Municipal wastewater plantMunicipal wastewater outlet ORP monitoring
In March 2021, online ORP, turbidity, flow and level measurements were deployed at the wastewater outlet to support operating assessment and discharge management.
Monitored parametersORPTurbidityFlowLevel
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2022 · China · Chemical-industry maintenance workshopIndustrial workshop rainwater-outlet ORP monitoring
In 2022, online water-quality monitoring was deployed at key rainwater outlets serving the maintenance workshop, spare-parts area and equipment-commissioning zone, combining ORP, pH, dissolved oxygen and CODcr.
Monitored parametersORPpHDissolved oxygenCODcr
↗04 · Common questions
Confirm this information before an inquiry
Why are commercial model numbers such as POP-500 not used here?+
The two current technical files do not state a commercial model number. A model shown in a historical case is not assumed to be identical to the current configuration.
Are the ±2000 mV and ±1000 mV configurations interchangeable?+
No. Their materials, temperature limits, dimensions and mounting threads differ.
Can an ORP sensor connect directly to a PLC?+
A conventional electrode needs a compatible controller; the source also describes an optional analog-to-digital module. The complete online system provides 4–20 mA and Modbus RS485.
Why are equipment brands absent from the case images?+
The real project setting and equipment count are retained while third-party brands, company names and nameplates are neutralized for public use.
Contact FUNEL
Tell us what you need to measure.
We will respond with a recommended configuration, supporting documentation and quotation.