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Industrial Online Digital ORP Controller

This single-channel industrial instrument determines the oxidation-reduction potential over a wide range of ±2000 mV by measuring the electrochemical potential difference between a noble metal electrode and a reference electrode in the solution.

Model： DUC2-ORP
Parameters： ORP
Delivery time： 2-5 weeks
MOQ： 1

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Overview

Information

Display Range: ORP: ±2000mV
Resolution: ORP: 0.1mV/1mV
Dimension: 144cm×144cm×120mm

Features

Digital RS485 ORP Sensor Interface

Supports direct connection of digital RS485 ORP probes. Strong anti-interference capability for long-distance signal transmission compared with analog sensors.
Two Programmable Relays&4-20mA Outputs

Two relays for automatic dosing and alarm output. Dual-channel 4-20mA current outputs transmit independent measurement signals, easy to integrate with PLC systems.
RS485 Modbus Communication&Historical Logging

Realizes remote data reading and parameter setting; built-in historical record functions stores measurement data with complete time information.

Application

The DUC2-ORP online digital ORP controller adopts digital RS485 probe input, delivering superior anti-interference performance for long-distance signal transmission. It is widely applied in swimming pool disinfection, aquaculture, industrial wastewater treatment, cooling circulating water and municipal water-quality monitoring. With two relays and dual 4-20mA current outputs, it supports automatic dosing control, alarm output and signal transmission for PLC/DCS integration. RS485 realizes remote centralized monitoring, while timestamp-based historical logging helps users record and trace water-quality change trends on-site.

Applicable Scenarios

Water & Wastewater
Aquaculture
Energy & Power Generation
Food & Beverage
Agriculture & Hydroponics
Plating

Optional Parts & Accessories

English
French
German
Portuguese
Spanish

Controller Model	DUC2-ORP
Sensor Input	Single-channel digital ORP sensor input
Display Range	ORP: ±2000mV (measuring range related to the connected sensor) Temp: -10～500℃ /14~932℉ (measuring range related to the connected sensor)
Resolution	ORP: 0.1mV(-1000＜ORP＜1000); 1mV(-2000≤ORP≤-1000 or 1000≤ORP≤2000) Temp: 0.1℃/ 0.1℉
Relay Control	Two SPST relays, Max. Load 3A/250VAC, set high/low alarm, temp, wash control
Current Output	Two settable 0/4~20mA current, Max. Load 1000Ω
Digital Output	Two-wire RS485 interface; MODBUS RTU
Display Screen	128 x 64, 3.2-inch large graphic dot matrix LCD
Configuration	Power-off protection, parameters are retained indefinitely
Time Display	YYYY-MM-DD, HH: MM: SS
Historical Data	Historical data query and download, records the last 100 calibration data
Maintenance Record	Last 100 times
Language	English
Protection Grade	IP66
Power failure protection	Setup data is permanently retained when power is off
Operating Environment	0～60℃, RH<95% ( no condensation)
Storage Environment	-20～70℃, RH<55% ( no condensation)
Enclosure Material	Enhanced ABS
Dimension	144mm x 144mm x 120mm (Cutout: 138mm x 138mm)
Installation Method	Wall mounting, pipe clamping, panel
Power Supply	AC: 100~240V 50/60Hz or DC: 18~36V
Power Consumption	Max. 24W

Industrial Online Digital ORP Controller

Overview

Information

Digital RS485 ORP Sensor Interface

Two Programmable Relays&4-20mA Outputs

RS485 Modbus Communication&Historical Logging

Applicable Scenarios

Standard

User Manual

Optional Parts & Accessories

Wall Mounting Accessories

Panel Mounting Accessories

Rain Shield Installation Kit

Pipe Installation Kit

Industrial Online Digital ORP Controller

Overview

Information

Digital RS485 ORP Sensor Interface

Two Programmable Relays&4-20mA Outputs

RS485 Modbus Communication&Historical Logging

Applicable Scenarios

Standard

User Manual

Optional Parts & Accessories

Wall Mounting Accessories

Panel Mounting Accessories

Rain Shield Installation Kit

Pipe Installation Kit

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