KEC300 Online Conductivity Sensor Water Quality Sensor
- 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 |
Knowledge Topic:Inductive Type Conductivity Sensor
1, Inductive conductivity sensor technology status and
characteristics
Inductance type conductivity sensor uses the principle of
electromagnetic induction to measure the conductivity. The
conductivity of the liquid is proportional to the induced
voltage/excitation voltage in a certain range. The excitation
voltage remains unchanged, and the conductivity is proportional to
the induced voltage.
Inductive conductivity sensor detector does not directly contact
with the liquid to be measured, therefore, there is no electrode
polarization and electrode pollution problems.The principle of
inductive conductivity sensor determines that this type of sensor
is only suitable for the measurement of liquids with high
conductivity: the measurement range is 1000-2000000 μs/cm.
Inductive conductivity sensor has the following characteristics: 1)
extremely strong pollution resistance and corrosion resistance;2)
there is no electrode polarization, capacitance effect, can be used
for high conductivity liquid measurement;3) Simple structure, easy
to use;4) Simple production process.
2, the application of inductive conductivity sensor
Inductive conductivity sensor is mostly used for the measurement
and detection of high conductivity liquid: 1) ocean development and
research, the salinity of the sea water measurement and analysis
(deep sea temperature and salt deep profile recorder);2) Water
quality testing of domestic and industrial wastewater;3) Monitoring
and analysis of single component solution concentration in chemical
production process;4) Used for the measurement of strong acid and
alkali concentration.
3, Inductive conductivity sensor key technology
1) Encapsulation of sensor detector
The excitation coil and the induction coil need to be strictly on
the same axis. In order to improve the measurement accuracy, the
turns need to be closely arranged, and there need to be good
shielding between the turns to reduce the generation of
interference coupling.
2) Exciting voltage and frequency
The excitation voltage and frequency determine the sensitivity and
linearity of the inductive conductivity sensor. Based on the
determination of the sensor structure, the excitation voltage and
frequency and other parameters are determined through experiments,
so that the sensor can obtain the best sensitivity and linearity.
3) Detector miniaturization
Inductive conductivity sensor detection is composed of coils,
detector miniaturization is to reduce the diameter of the coil and
reduce the number of turns, the coil diameter is too small, too few
turns will affect the sensor measurement sensitivity and
measurement range.
4, the future development trend of inductive conductivity sensor
1) Sensor miniaturization has become one of the development
directions of inductive conductivity sensors.The development of
material processing and preparation technology makes it possible to
achieve miniaturization of detectors and thus miniaturization of
sensors.
2) Inductive conductivity sensor is combined with SCM and
microsystem technology to realize the automation of conductivity
measurement.By using these techniques, the adjustable excitation
signal is realized, so that the measurement accuracy and linearity
are improved.
With the development of conductivity measurement technique,
electrical conductivity sensor has been developed from the first
two electrode type, inductance type to multiple electrode
conductivity sensor development, micro electrode conductivity
sensor, it can be seen: electrode, microelectrode, microstructure
has become more conductivity sensor development direction, and
combined with single-chip microcomputer, micro system technology,
realize the automation of conductivity measurement, the motors.
Phone +86-17719566736
Email sales@kacise.com
Location Tangyan South Road, High-tech Zone, Xi'an City, Shaanxi
Province, China
