CommunityForumWikiBlogLearn

Water Quality Electrical Conductivity Sensor(k=10)

SKU: SEN0707

This is an industrial-grade water electrical conductivity sensor with integrated probe & housing. Key specs: K=10, 10~20000μS/cm range, ±1%FS accuracy, 1μS resolution. It supports salinity/TDS conversion, RS485 (ModBus-RTU), built-in temp compensation, and IP68 waterproofing. Factory-calibrated, includes calibration solution. Tutorials for Arduino/LoRaWAN setup. Ideal for aquaculture, tap water monitoring, irrigation, etc.

Downloadable Resources

  • Docs
  • Tech Specs

    • 1. Getting Started

    This guide offers comprehensive instructions on electrode calibration, covering single-point precision, installation methods for submersible and pipe setups, and maintenance tips for conductivity sensors to ensure accurate measurements.

    2. Example Code for Arduino-Water Quality Data Monitoring

    This project demonstrates how to connect the RS485 Water Quality Electrical Conductivity Sensor to an Arduino board to read real-time electrical conductivity (EC), temperature, salinity, and Total Dissolved Solids (TDS) data. You will learn how to implement ModBus-RTU protocol communication over RS485, process sensor data, and display results on the serial monitor.

    Reference

    The article provides a detailed explanation of the Modbus-RTU communication protocol, covering basic parameters, data frame format, register addresses, and practical examples for sensor data reading and calibration.

    Specification

    Parameter Details
    Power Supply Voltage 10~30V DC
    Power Consumption 0.4W
    Communication Interface RS485 (Standard ModBus-RTU Protocol)
    Measurement Range - Conductivity: K=10:10~20000μS/cm
    - Temperature: -20°C~+60°C
    - Salinity: K=10:0~11476ppm
    - TDS: K=10:0~13400ppm
    Measurement Error - Conductivity: ±1%FS
    - Temperature: ±0.5°C
    Resolution - Conductivity: 1μS/cm
    - Temperature: 0.1°C
    Temperature Compensation Range -20°C~+60°C
    Temperature Compensation Coefficient Default 0.02
    Operating Temperature -20°C~+80°C
    Waterproof Rating IP68
    Pressure Resistance 0.6MPa
    Cable Length 5m
    Housing Material Corrosion-resistant Plastic

    Pinout

    Num Label Description
    Brown line VCC Power input positive pole, DC10-30V power supply
    Black line GND Power ground wire
    Yellow line 485-A RS485 data line A
    Blue line 485-B RS485 data line B

    Dimensional Drawing

    FAQ

    • How to troubleshoot when there is a problem?
      1. The computer has multiple COM ports, and the selected port is incorrect.
      2. The device address is wrong, or there are devices with duplicate addresses (all factory defaults are 1).
      3. Baud rate, check mode, data bit, stop bit error.
      4. Host polling interval and waiting response time are too short, both need to be set above 200ms.
      5. 485 bus is disconnected, or A and B lines are connected in reverse.
      6. Too many devices or too long wiring, power supply should be provided nearby, 485 enhancer should be added, and 120Ω terminal resistance should be added.
      7. USB to 485 driver is not installed or damaged.
      8. Equipment is damaged.

    Explore More Related Questions >

    Was this article helpful?

    TOP