Product Details
KEC300 Online Conductivity Sensor Water Quality Sensor
Current status and characteristics of the four-electrode
conductivity sensor
Four electrode conductivity pool by two current electrode and
voltage electrode, electrode coaxial electrode voltage and current,
when measuring the liquid to be tested in two current between the
electrode gap, impose an ac signal current electrodes at both ends
and by electric current, establish the electric field in the liquid
medium, two voltage electrode voltage induction, make two voltage
at the ends of the electrode voltage constant, by two current
electrodes has a linear relationship between current and liquid
conductivity.
In order to meet the needs of Marine research and development,
China's national ocean technology center li Jianguo to open
four-electrode conductivity sensor is a research and development,
successfully developed a four-electrode conductivity sensor used in
seawater conductivity measurement, its performance index has
reached the international advanced level, measurement range of 0 ~
65 mS/cm; The measurement accuracy is ±0.007 mS/cm.
At present, the mature four-electrode conductivity sensor has a
measuring range of 0-2S/cm, and different electrode constants have
different measuring ranges.
The four-electrode conductivity sensor has the following
characteristics: 1) the current electrode is separated from the
voltage electrode, and the current electrode is powered by a
constant current source, which effectively avoids the influence of
polarization impedance;2) High sensitivity and strong
anti-pollution ability;3) The four-electrode conductance cell has
the characteristics of ultrastructure, large diversion space and
short distance, which is suitable for long-term field measurement.
- Integrated design, immune to electromagnetic interference
- Industrial conductivity electrode, electrode constant stability,
not affected by polarization, pollution
- Built-in temperature sensor, real-time temperature compensation
Stainless steel case, IP68 waterproof grade, suitable for various
- working conditions
- RS485 signal output, Standard Modbus protocol, easy integration,
networking
Water Quality Sensor Model number | KEC300 |
Water Quality Sensor Measurement parameter | Conductivity, salinity, temperature |
Water Quality Sensor Method of measurement | Four wire graconductivityite electrode method |
Water Quality Sensor Measurement mode | Immersion measurement |
Water Quality Sensor Measuring range | Conductivity: (0 ~ 500mS/cm), salinity: (0-100) ppt Temperature: (0 ~ 60) °C |
Water Quality Sensor Accuracy | ≤ ± 1% |
Water Quality Sensor Repeatability | ≤1% |
Water Quality Sensor Resolution | Conductivity: 0.01 s/cm, salinity: 0.01 PPT |
Water Quality Sensor Response time | ≤20s |
Water Quality Sensor Zero Drift (24h) | ≤ ± 1% F.S. |
Water Quality Sensor Range Drift (24h) | ≤ ± 1% F.S. |
Water Quality Sensor Accuracy of temperature compensation | ≤ ± 1% |
Water Quality Sensor Calibration period | Six months |
Water Quality Sensor Temperature range | (0 ~ 60) °C |
Water Quality Sensor Protection level | IP68 |
Water Quality Sensor MTBF | ≥1440h/Time |
Water Quality Sensor Means of communication | RS485(Modbus RTU), maximum baud rate 115200 bps |
Water Quality Sensor Supply voltage | (12/24) V DC |
Water Quality Sensor Power consumption | < 1W |
Water Quality Sensor Material Quality | Stainless steel, POM |
Water Quality Sensor Weight | 0.5 kg |
Water Quality Sensor Contour dimension | 205 mm × φ40 mm |
Phone +86-17719566736
Email sales@kacise.com
Location Tangyan South Road, High-tech Zone, Xi'an City, Shaanxi
Province, China
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.