<p>EC-9900 industrial online conductivity/resistivity measurement and control instrument, integrated with ARM MCU chip, signal measurement in the form of software automatic real-time tracking, to achieve intelligent instrument, so that the measurement accuracy and stability are further improved;</p> <p>This instrument can be adapted to a variety of conductivity electrodes: 0.01, 0.02, 0.1, 1.0, 10.0cm-1 conductivity electrodes, the measurement range is from 18.25 MΩ (0.05 us) to 100 mS (NTC10K is used for temperature compensation, which can achieve temperature measurement from 0 to 120 °C);</p> <p>This instrument is widely used in: water treatment equipment, environmental engineering, pharmaceutical, electronics, chemical industry, agricultural planting, aquaculture, scientific research institutes, electroplating, metallurgical manufacturing, mechanical processing and other industries.</p>

■ Basic function

1.Language: Chinese or English.(other can be customized)
2.Temperature compensation: PT1000, NTC10K and manual temperature compensation are available in three temperature compensation modes.
3.Two 4-20MA outputs, corresponding to Conductivity/Resistance/TDS value and temperature, using isolation technology, strong anti-interference ability.
4.The high and low points of the 3 sets of relays can be switched freely, and the hysteresis can be adjusted freely to avoid relays on and off frequently.
5.Password management function is to prevent the wrong operation by non-professional personnel.
6.Menu prompt function, greatly facilitates the user's operation.

■ Instrument technical parameters

Measuring range: 0.05uS/cm – 200mS/cm; 0.00 MΩ·cm～20.00 MΩ·cm; 0-2000ppm
Accuracy: ±0.01 uS/cm; ±1ppm
Resolution: 0.01uS/cm; 1ppm
Temperature compensation: 0–120℃ Manual / Auto(PT1000/NTC10K)
Signal output: 4-20mA isolation protection output，independent corresponding Conductivity/Resistance or temperature, maximum load is 500Ω.
Alarm output: 3 groups can randomly correspond to high and low point alarm (3A/250 V AC), normally open contact relay.
Power supply: AC100-240V or DC24V.
Power consumption：≤7W
Environmental condition:（1）temperature 0~50 ℃ （2）humidity≤85%RH
Dimensions: 96×96×132mm（H×W×D）
Hole: 92.5×92.5mm（H×W）

■ Main engine fixed

This controller can be plated, wall-mounted installation.

■ Panel mounting reference drawing

■ Electrode shape and installation form

Engineered for continuous industrial monitoring, our newest inline conductivity meter features an integrated ARM MCU chip that enables intelligent signal measurement through software-based automatic real-time tracking. The system accommodates a wide range of conductivity electrodes (0.01 to 10.0 cm⁻¹) and delivers measurement ranges from 18.25 MΩ to 100 mS, with integrated NTC10K temperature compensation for accuracy across 0–120°C. The robust performance of this newest inline conductivity meter makes it ideal for water treatment plants, pharmaceutical manufacturing, chemical processing, aquaculture, and environmental monitoring where reliable, real-time conductivity data is critical for process control and quality assurance.

Designed for seamless integration into existing piping and process lines, this newest inline conductivity meter supports a broad spectrum of industries including electroplating, metallurgy, electronics, and scientific research. Its intelligent design minimizes manual calibration needs while providing stable, drift-free measurements in demanding environments. This combination of advanced signal processing, wide sensor compatibility, and rugged industrial construction makes our newest inline conductivity meter an excellent investment for facilities seeking to enhance process oversight with a tool that delivers both immediate accuracy and long-term operational dependability. For further product details, please consult our team.