Conductivity instrument's sensors and controller

Three Different Types of Conductivity Instrument

Conductivity refers to the ability of ions in a solution to conduct electricity, often used to assess water quality purity, concentration and chemical composition. Conductivity instrument, usually composed of a conductivity sensor and a controller, is an automated instrument used for real-time monitoring and measurement of conductivity in solutions. This equipment is widely used in water treatment plants, chemical plants, pharmaceutical industry, environmental monitoring stations and other places where continuous monitoring of water or solution quality is required.

  • Specification
  • Working Principle
  • Video
Specification
  • CCT-8301A conductivity controller and sensor

    CCT-8301A Conductivity / Resistivity / TDS / TEMP Online Controller

  • CCT-5300E conductivity controller and sensor

    CCT-5300E Series Conductivity / Resistivity / TDS Online Controller

  • CCT-3300 conductivity controller and sensor

    CCT-3300 Series Conductivity Online Controller

  • One CID-3041 digital inductive conductivity sensor

    CID-3041 Digital Inductive Conductivity Sensor

  • Integrated conductivity / resistivity / temperature.
  • 3.5" 320 × 240 TFT color screen, multiple parameter display in the same screen.
  • With the conductivity constant 0.01 cm-1, 0.1 cm-1, 1.0 cm-1, 10.0 cm-1.
  • Automatic range switch, arbitrary setting for measurement unit.
  • Double channel, isolated (4–20)mA, instrument / transmitter for selection.
  • Control, transmit, arbitrary combination for conductivity / resistivity / TDS / temperature.
  • Triple channels photo-electrical switch control, choose to conductivity / resistivity / temperature / time.
  • Switching logic can be set, static logic or pulse logic for optional.
  • Calendar function, time setting, and making an appointment, provide time tags for recording data.
  • Pt 1000 temperature compensation, with the professionalization of temperature measurement / temperature control.
  • Complete isolated channel for power, measurement, transmitter, and control.
  • RS485 communication port, Standard Modbus RTU protocol.
  • Optimal electromagnetic compatibility design, good anti-jamming performance.
  • DC 24V power supply, conform to the safety standards of high humidity site (Port polarity internal automatic identification).
  • Password protection function, strengthen system security, with the CE Certification.
CCT-8301A conductivity controller and sensor

Main Technical Data

Table 1: CCT-8301A Conductivity/Resistivity/TDS/TEMP Online Controller Main Technical Data
Constant 10.00 cm-1 1.000 cm-1 0.100 cm-1 0.010 cm-1
Conductivity (500–100,000) μS/cm (1.0–10,000) μS/cm (0.5–200) μS/cm (0.05–18.25) MΩ • cm
TDS (250–50,000) ppm (0.5–5,000) ppm (0.25–100) ppm -
Temp. (0–180) °C (Temp. Compensation: Pt 1000)
Resolution Conductivity: 0.01 μS/cm, 0.01 mS/cm
Resistivity: 0.01 MΩ • cm
TDS: 0.01 ppm
Temp.: 0.1 °C
Accuracy Conductivity: 1.5% (FS);
Resistivity: 2.0% (FS);
TDS: 1.5% (FS);
Temp: ±0.5 °C
Temperature Compensation With 25 °C as standard under normal medium. With 90 °C as standard under high temp medium
Analog Output Double channels (4–20)mA, Instrument/Transmitter for selection
Control Output Triple channels photo-electronic semiconductor relay switch. Load capacity: AC/DC 30V, 50mA (max)
Communication Port RS485 Modbus RTU protocol
Power Supply DC 24V±15%
Protection Level IP65 (with the back cover)
Working Environment Temp.: (0–50) °C
Relative Humidity: ≤ 95% RH (non-condensing)
Storage Environment Temp.: (-20 to +60) °C
Relative Humidity: ≤ 85% RH (non-condensing)
Dimension (H × W × D) 96 mm × 96 mm × 94 mm
Hole Size (H × W) 91 mm × 91 mm
Installation Panel mounted, fast installation

Application

Multi-effect distilled water for medical systems, boiler bottom water, condensate, heat exchange systems, industrial thermal mechanical parts cleaning, industrial water recycling and conductivity online analysis at high temperature environments running water quality management and automated control over a wide temperature range.

  • Integrated conductivity/resistivity parameter measurement, supports cell constant 0.01 cm-1, 0.1 cm-1, 1.0 cm-1, 10.0 cm-1.
  • Automatic range switch, intelligent core.
  • White background LCD display, various symbols to guide operation.
  • Arbitrary selection of conductivity, resistivity, and TDS.
  • Check the conductivity, temperature, mA current at any time.
  • Isolated, transportable (4–20)mA output, instrument/transmitter mode for selection.
  • DC 24V, AC 110V, AC 220V power supply for selection.
  • Measuring, communication, control are completely isolated, more stable.
  • With the CE Certification.
CCT-5300E conductivity controller and sensor

Main Technical Data

Table 2: CCT-5300E Series Conductivity/Resistivity/TDS Online Controller Main Technical Data
Constant 10.00 cm-1 1.000 cm-1 0.100 cm-1 0.010 cm-1
Conductivity (0.5–20,000) μS/cm (0.5–2,000) μS/cm (0.5–200) μS/cm (0.05–18.25) MΩ • cm
TDS (250–10,000) ppm (0.5–1,000) ppm (0.25–100) ppm
Medium Temp. (0–50) °C (Temp. Compensation: NTC 10K)
Accuracy Conductivity Resistivity TDS Temp.
1.5% (FS) 2.0% (FS) 1.5% (FS) ±0.5 °C
Cable Length ≤ 20m (MAX.)
Temperature Compensation (0–50) °C (with 25 °C as standard)
Transmitting Output Isolated, transportable (4–20)mA, Instrument/Transmitter for selection
Control Output Relay contact: ON/OFF; Load capacity: AC 230V/5A (Max)
Power Supply CCT-5300E CCT-5310E CCT-5320E
DC 24V AC 110V AC 220V
Working Environment Temp.: (0–50) °C
Relative Humidity: ≤85% RH (none condensation)
Storage Environment Temp.: (-20 to +60) °C
Relative Humidity: ≤ 85% RH (none condensation)
Dimension (H × W × D) 96 mm × 96 mm × 105 mm
Hole Size (H×W) 91 mm × 91 mm
Installation Panel mounted, fast installation

Application

High cost-effective, widely used for chemical industry, paper making industry, industrial coating, pharmaceutical, food, beverage, municipal water, environmental and so on.

  • Integrated conductivity/resistivity parameter measurement, supports cell constant 0.01 cm-1, 0.1 cm-1, 1.0 cm-1, 10.0 cm-1.
  • Intelligent automatic range, automatic conversion in the full range.
  • Arbitrary selection of conductivity, resistivity, and TDS.
  • Check the conductivity, temperature, (4–20)mA at any time.
  • Single channel isolated (4–20)mA output, instrument/transmitter mode for selection.
  • DC 24V, AC 110V, AC 220V power supply for selection.
  • Measuring, communication, control are completely isolated, more stable.
  • With the CE Certification.
CCT-3300 conductivity controller and sensor

Main Technical Data

Table 3: CCT-3300 Series Conductivity Online Controller Main Technical Data
Constant 10.00 cm-1 1.000 cm-1 0.100 cm-1 0.010 cm-1
Conductivity (0.5–20) mS/cm (0.5–2,000) μS/cm (0.5–200) μS/cm (0.05–18.25) MΩ • cm
TDS (250–10,000) ppm (0.5–1,000) ppm (0.25–100) ppm
Medium Temp. (0–50) °C
Resolution Conductivity TDS Temp.
0.01 μS/cm 0.01 ppm 0.1 °C
Accuracy Conductivity Resistivity TDS Temp.
1.5% (FS) 2.0% (FS) 1.5% (FS) ±0.5 °C
Temperature Compensation (0–50) °C (with 25 °C as standard)
Cable Length ≤ 5 m (MAX)
mA Output Isolated(4–20)mA, Instrument/Transmitter for selection
Control Output Relay contact: ON/OFF,Load capacity: AC 230V/5A (Max)
Working Environment Temp.: (0–50) °C
Relative Humidity: ≤ 85% RH (none condensation)
Storage Environment Temp.: (-20 to +60) °C
Relative Humidity: ≤85% RH (none condensation)
Power Supply CCT-3300 CCT-3310 CCT-3320
DC 24V AC 110V AC 220V
Dimension (H × W × D) 48 mm × 96 mm × 80 mm
Hole Size (H × W) 44 mm × 92 mm
Installation Panel mounted, fast installation

Application

Widely used for chemical industry, pharmaceutical, food, beverage, industrial coating, municipal water, environmental.etc.conductivity/resistivity online measuring and control. It is a small-scale, industry leading and high cost-effective conductivity/resistivity integration online controller.

CID-3041 digital inductive conductivity sensor is a digital on-line analysis sensor that integrates measurement and communication with the instrument embedded in the sensor. The sensor directly outputs the RS485 digital signal (final net data), can realize the data transmission without distortion to the industrial control machine, PLC, touch screen, etc.. Digital sensor will be directly integrated into the Internet + system.

Inductive sensors have the anti-pollution ability for the medium containing oil pollution and process coating. The sensor does not have direct contact with the test solution of the polar plate, and there is no polarization phenomenon, and it is not affected by the coating or film form. Sensor material has the advantages of anti-pollution, high temperature and corrosion resistance.

A CID-3041 digital inductive conductivity sensor

Main Technical Data

Table 4: CID-3041 Digital Inductive Conductivity Sensor Main Technical Features
Measure Range Conductivity 500 μS/cm – 2000 mS/cm
Concentration NaOH: (0–15)% or (25–50)%
HNO3: (note the Corrosion resistance of the sensor) (0–25)% or (36–82)%
User-defined concentration curves
TDS 250.0 ppm – 1000 ppm
Temp. (0–120) °C
Resolution Conductivity 0.01 μS/cm
Concentration 0.01%
TDS 0.01 ppm
Temp. 0.1 °C
Accuracy Conductivity (500–1999) μS/cm, ±1.5% (FS)
(2–19.9) mS/cm,±1.0% (FS)
(20–199) mS/cm, ±1.0% (FS)
(200–2000) mS/cm, ±1.0% (FS)
TDS 1.5 level
Temp. ±0.5 °C
Temp. element Pt1000
Compensation Range (0–120) °C linear condensation
Communication RS485
Power Supply DC 24V±4V
Consumption ≤ 2W
Protection Level IP68
Working Environment Temperature: (0–50) °C
Relative Humidity: ≤ 85% RH (non-condensing)
Storage Temperature:(-20 to +60) °C
Relative Humidity: ≤ 85% RH (non-condensing)
Installation Pipeline/Flow device/immersion

Application

Landfill leach ate, sewage treatment water quality monitoring in petrochemical, power, pharmaceutical, chemical, water treatment, and semiconductor manufacturing industries.

Working Principle
Conductivity instrument working principle diagram

Conductivity instruments are used to measure the ability of an electric current to pass through a solution, which is typically accompanied using two or more electrodes placed in the solution.

Two electrodes are placed opposite to each other, an AC voltage is applied to the electrodes. The AC voltage is sent through one electrode of the sensor, passes through the measured liquid, and the signal is received by the other electrode. The more free charged particle carriers contained in the liquid, the higher the current and the higher the conductivity. The microprocessor built into the controller converts the current signal into a digital signal, which is displayed in real time on the controller screen.

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