Tenber POP-3301

POP-3301 Dual-Channel pH/ORP Controller

Dual-channel online pH/ORP controller with two isolated 4–20mA outputs and RS485 Modbus RTU.

Tenber POP-3301 Dual-Channel pH ORP Controller
ENGINEER-READY WATER QUALITY INSTRUMENT

Built for continuous process monitoring

Dual-channel online pH/ORP controller with two isolated 4–20mA outputs and RS485 Modbus RTU.

Key specifications

APPLICATION-BASED QUOTATION

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    Technical author: Tenber Technical Team Technical reviewer: Tenber Technical Team Last updated: September 4, 2026 Documentation source: current model documentation and quality documents. Confirm scope for the supplied model.

    Product Overview

    DUAL-CHANNEL PH / ORP CONTROL

    Two measurement channels for demanding process monitoring

    Tenber POP-3301 provides two pH/ORP measurement channels for wastewater, environmental monitoring, fermentation, food production and industrial process control. The two channels can be configured for pH or ORP according to the application.

    -2.00–16.00 pHpH range
    -2000–2000 mVORP range
    Dual 4–20mAIsolated outputs
    RS485Modbus RTU

    Verified Technical Specifications

    Verified Technical Data

    ChannelsTwo pH/ORP measurement channels
    Accuracy±0.01 pH / ±1 mV
    Temperature compensationPt1000 / NTC10K
    Analog outputsTwo isolated 4–20mA outputs
    CommunicationRS485 Modbus RTU
    ProtectionIP65
    Power90–260 VAC

    Typical Applications

    Typical Applications

    Electroplating Wastewater

    Monitor two process points or combine pH and ORP supervision after selecting compatible electrodes.

    Neutralization Systems

    Continuous dual-point monitoring for acid and alkali dosing processes.

    Industrial Process Control

    Transmit both measurement channels to compatible automation systems.

    PROJECT SELECTION SUPPORT

    Manuals, Related Products and Request for Quotation

    Confirm the complete measuring configuration

    Send the liquid, measuring range, temperature, pressure, installation method, output signal and quantity. Tenber will check the controller and sensor combination before quotation.

    Request a Quote

    Selection flow for POP-3301

    Start with the documented measurement parameter, then check the complete measuring loop before quotation.

    1. Define the application and liquid composition.
    2. Record the normal and maximum value, temperature, pressure and flow conditions.
    3. Choose the sensor or electrode, installation method, cable and maintenance access together with the controller.
    4. Confirm the receiving system, including 4–20mA, RS485 Modbus RTU, relay, recorder, PLC or DCS requirements.
    5. Send the quantity, destination country and current documentation requirement for model review.

    Application boundaries

    Confirm the current model manual, sensor compatibility, range, process conditions, installation and signal requirements before quotation.

    Inquiry checklist

    Include the liquid, parameter and range, temperature, pressure, installation, sensor or electrode, cable length, output or communication interface, control requirement, quantity and destination country.