The United Kingdom FESKS instruments launched quadrupole Conductivity sensor KSEC 362, adopts industry-leading four-electrode non-polarization measurement technology, designed for high-precision in harsh industrial environments Electric conductivity/TDS/Salinity Designed to detect needs. Its innovative four-electrode structure separates the current excitation and voltage detection circuits, effectively eliminating the polarization effects and contact impedance interference of traditional dual-electrode systems.0-300 mS/cm Achieve measurement accuracy of ± 0.5% FS over an ultra-wide range, especially suitable for Corrosive media such as strong acids and strong bases, high-concentration ionic solutions Long-term stable monitoring.
The core components of the sensor are made of aerospace grade composite materials: the measuring electrode is made of high-purity isostatically pressed graphite, which has excellent electrical conductivity and chemical inertness, and can resist erosion by strong corrosive media in the full range of pH 0-14; the supporting structure is used TC4 titanium alloy Precision processed and formed by vacuum coating process. It has high strength, light weight and chloride ion corrosion resistance. The overall protection level reaches IP68, suitable for applications from-20℃ to-20℃.120℃ wide temperature range operating environment. The innovative modular design and intelligent temperature compensation algorithm enable it to demonstrate excellent medium adaptability in highly demanding scenarios such as chemical process control, desalination systems, and industrial wastewater treatment, providing users with long-term maintenance-free precise measurement solutions.
☞ Supporting controller:
FSEC 3600 Basic Controller
FSEC 5270 Intelligent Controller
FJEC 1060 Electrode Module
product features
● Quadrupole conductive titanium alloy/PVDF material
● Built-in temperature sensor
● In liquids with higher concentrations, electrodes are not easy to polarize
● Stable electrode performance and long service life
● Electrode material is corrosion resistant
● Easy installation, easy maintenance and easy cleaning
● Waterproof rating IP68, can work underwater for a long time
technical parameters
Name | quadrupole conductance |
Model | KSEC 362 |
the cell constant | 0.5 |
Measuring range | 10 μs/cm - 300 mS/cm |
temperature compensation | Pt-1000/NTC 10K/NTC30K |
Operating temperature | 0~120℃ |
material | Graphite/titanium alloy |
maximum pressure | 7 bar |
threaded interface | NPT 3/4" |
Installation mode | Pipeline/Circulation |
cable length | 5 m/10m |
Application field | Sewage wastewater, reclaimed water, seawater, etc. |
Installation safety instructions
1: It is forbidden to remove the electrode when there is pressure in the pipeline.
2: Do not use it beyond the pressure and temperature that the electrode can withstand.
3: Do not change the electrode structure privately.
4: The instrument should be powered off before connecting the electrode to the instrument.
troubleshooting
Most of the problems are bubble interference and not all the electrodes enter the water. Please follow the correct installation instructions for correct installation.
(1)Dipolar ultrapure water/pure water/specific resistance electrode
error condition | possible causes | Department Reason |
99.99 | 1. The line is not connected properly 2. Electrode not immersed in water 3. There are bubbles in the water | 1. Re-check the line 2. Confirm installation is correct 3. Avoid air bubbles affecting the electrode |
Unstable reading | Contaminated electrode | Clean electrodes and recalibrate |
Reading too low | Electrode is not completely immersed in test solution | Reinstall, install according to the schematic diagram |
How to install a conductance measurement system correctly ?
1. Check whether the wire is connected correctly. (Refer to electrode wiring diagram)
2. Clean the electrodes.
3. Use a meter to calibrate the electrodes.
After installing the above installation, you can determine that the measurement system is correct. Measurement errors may be caused by installation, for example: the electrode is not fully immersed in water or there are air bubbles in the water, it may indicate over-range or measurement errors.
(2)quadrupole conductive electrode
error condition | possible causes | Department Reason |
9999 | out of range | Switch to higher range |
Unstable reading | Contaminated electrode | Clean electrodes and recalibrate |
Reading too low | Interference by air bubbles | Install correctly to avoid air bubbles |
Display 0.0uS/cm | The line is not connected properly | Re-check wiring |
How to install a conductance measurement system correctly ?
1. Check whether the wire is connected correctly. (Refer to electrode wiring diagram)
2. Clean the electrodes. The conductivity cell needs to be cleaned of dirt in time. Clean it with 50% warm detergent (soak and clean it with 2% hydrochloric acid or 5% nitric acid solution for highly adhesive dirt), brush it with a nylon brush, and then repeatedly rinse the inner and outer surfaces of the electrode with distilled water. Remember not to touch the electrode with your hands.
3. Use a meter to calibrate the electrodes.
4. When the electrode leaves the water, the display will be 0.0uS/cm.
5. Place the electrode tip into a standard solution (1413uS/cm, 25℃ or other standard solution) to recalibrate the electrode constant.
6. Conductivity electrodes need to be dried before storage. Do not store the electrodes in distilled water or deionized water.
7. High-purity water should be measured quickly after being put into a container. Because CO2 in the air will continue to dissolve in water samples to generate highly conductive carbonate ions, the conductivity will continue to increase, and the measured data will be inaccurate.
8. The container of the solution to be tested must be clean and free of ion contamination.
9. Incorrect use of electrodes often causes the instrument to work abnormally. When installing the electrode, the electrode should be completely immersed in the solution.
After checking according to the above process, the measurement system will work normally. Measurement errors are often caused by contaminated electrodes or affected by air bubbles.
Calibration of electrodes
(1)The instrument is generally calibrated before leaving the factory, and users can directly put it into use.
(2)In order to ensure the measurement accuracy of the conductivity instrument, the electrode constant should be re-calibrated with a conductivity instrument before use. At the same time, the conductivity electrode constant should be calibrated regularly. If there is a large error, the conductivity electrode should be replaced in time.
Recommend users every Calibrate every month from January to February.
Daily maintenance of electrodes:
1. General contamination: Wash the electrode with water, 0.1 moL/INaOH or 0.1 moL/L HCI for several minutes.
2. Oil or organic contamination: Wash the electrodes with acetone or ethanol for a few seconds.
3. Sulfide contamination (black membrane): Wash with a mixture of 10% HCL and saturated thiourea.
4. Protein contamination (yellowing of diaphragm): Wash with a mixture of 10% HCL and saturated pepsin.
Note: When the tested medium has sulfide pollution or protein pollution on the electrode, it should be dealt with promptly.
Storage of electrodes:
1. When the electrode is not used for a long time, it should be stored in saturated KCL solution or buffer solution.
2. The electrode cannot be dried for a long time, and the electrode cannot be stored when a dry medium is attached to the surface. Dry electrodes should be placed in a suitable preservation solution for activation before being used.
3. The electrode can be activated in buffer at pH4 or in 3M HCl (or saturated KCL).
4. Electrodes cannot be stored in distilled water.
The United Kingdom FESKS instruments launched quadrupole Conductivity sensor KSEC 362, adopts industry-leading four-electrode non-polarization measurement technology, designed for high-precision in harsh industrial environments Electric conductivity/TDS/Salinity Designed to detect needs. Its innovative four-electrode structure separates the current excitation and voltage detection circuits, effectively eliminating the polarization effects and contact impedance interference of traditional dual-electrode systems.0-300 mS/cm Achieve measurement accuracy of ± 0.5% FS over an ultra-wide range, especially suitable for Corrosive media such as strong acids and strong bases, high-concentration ionic solutions Long-term stable monitoring.
The core components of the sensor are made of aerospace grade composite materials: the measuring electrode is made of high-purity isostatically pressed graphite, which has excellent electrical conductivity and chemical inertness, and can resist erosion by strong corrosive media in the full range of pH 0-14; the supporting structure is used TC4 titanium alloy Precision processed and formed by vacuum coating process. It has high strength, light weight and chloride ion corrosion resistance. The overall protection level reaches IP68, suitable for applications from-20℃ to-20℃.120℃ wide temperature range operating environment. The innovative modular design and intelligent temperature compensation algorithm enable it to demonstrate excellent medium adaptability in highly demanding scenarios such as chemical process control, desalination systems, and industrial wastewater treatment, providing users with long-term maintenance-free precise measurement solutions.
☞ Supporting controller:
FSEC 3600 Basic Controller
FSEC 5270 Intelligent Controller
FJEC 1060 Electrode Module
product features
● Quadrupole conductive titanium alloy/PVDF material
● Built-in temperature sensor
● In liquids with higher concentrations, electrodes are not easy to polarize
● Stable electrode performance and long service life
● Electrode material is corrosion resistant
● Easy installation, easy maintenance and easy cleaning
● Waterproof rating IP68, can work underwater for a long time
technical parameters
Name | quadrupole conductance |
Model | KSEC 362 |
the cell constant | 0.5 |
Measuring range | 10 μs/cm - 300 mS/cm |
temperature compensation | Pt-1000/NTC 10K/NTC30K |
Operating temperature | 0~120℃ |
material | Graphite/titanium alloy |
maximum pressure | 7 bar |
threaded interface | NPT 3/4" |
Installation mode | Pipeline/Circulation |
cable length | 5 m/10m |
Application field | Sewage wastewater, reclaimed water, seawater, etc. |
Installation safety instructions
1: It is forbidden to remove the electrode when there is pressure in the pipeline.
2: Do not use it beyond the pressure and temperature that the electrode can withstand.
3: Do not change the electrode structure privately.
4: The instrument should be powered off before connecting the electrode to the instrument.
troubleshooting
Most of the problems are bubble interference and not all the electrodes enter the water. Please follow the correct installation instructions for correct installation.
(1)Dipolar ultrapure water/pure water/specific resistance electrode
error condition | possible causes | Department Reason |
99.99 | 1. The line is not connected properly 2. Electrode not immersed in water 3. There are bubbles in the water | 1. Re-check the line 2. Confirm installation is correct 3. Avoid air bubbles affecting the electrode |
Unstable reading | Contaminated electrode | Clean electrodes and recalibrate |
Reading too low | Electrode is not completely immersed in test solution | Reinstall, install according to the schematic diagram |
How to install a conductance measurement system correctly ?
1. Check whether the wire is connected correctly. (Refer to electrode wiring diagram)
2. Clean the electrodes.
3. Use a meter to calibrate the electrodes.
After installing the above installation, you can determine that the measurement system is correct. Measurement errors may be caused by installation, for example: the electrode is not fully immersed in water or there are air bubbles in the water, it may indicate over-range or measurement errors.
(2)quadrupole conductive electrode
error condition | possible causes | Department Reason |
9999 | out of range | Switch to higher range |
Unstable reading | Contaminated electrode | Clean electrodes and recalibrate |
Reading too low | Interference by air bubbles | Install correctly to avoid air bubbles |
Display 0.0uS/cm | The line is not connected properly | Re-check wiring |
How to install a conductance measurement system correctly ?
1. Check whether the wire is connected correctly. (Refer to electrode wiring diagram)
2. Clean the electrodes. The conductivity cell needs to be cleaned of dirt in time. Clean it with 50% warm detergent (soak and clean it with 2% hydrochloric acid or 5% nitric acid solution for highly adhesive dirt), brush it with a nylon brush, and then repeatedly rinse the inner and outer surfaces of the electrode with distilled water. Remember not to touch the electrode with your hands.
3. Use a meter to calibrate the electrodes.
4. When the electrode leaves the water, the display will be 0.0uS/cm.
5. Place the electrode tip into a standard solution (1413uS/cm, 25℃ or other standard solution) to recalibrate the electrode constant.
6. Conductivity electrodes need to be dried before storage. Do not store the electrodes in distilled water or deionized water.
7. High-purity water should be measured quickly after being put into a container. Because CO2 in the air will continue to dissolve in water samples to generate highly conductive carbonate ions, the conductivity will continue to increase, and the measured data will be inaccurate.
8. The container of the solution to be tested must be clean and free of ion contamination.
9. Incorrect use of electrodes often causes the instrument to work abnormally. When installing the electrode, the electrode should be completely immersed in the solution.
After checking according to the above process, the measurement system will work normally. Measurement errors are often caused by contaminated electrodes or affected by air bubbles.
Calibration of electrodes
(1)The instrument is generally calibrated before leaving the factory, and users can directly put it into use.
(2)In order to ensure the measurement accuracy of the conductivity instrument, the electrode constant should be re-calibrated with a conductivity instrument before use. At the same time, the conductivity electrode constant should be calibrated regularly. If there is a large error, the conductivity electrode should be replaced in time.
Recommend users every Calibrate every month from January to February.
Daily maintenance of electrodes:
1. General contamination: Wash the electrode with water, 0.1 moL/INaOH or 0.1 moL/L HCI for several minutes.
2. Oil or organic contamination: Wash the electrodes with acetone or ethanol for a few seconds.
3. Sulfide contamination (black membrane): Wash with a mixture of 10% HCL and saturated thiourea.
4. Protein contamination (yellowing of diaphragm): Wash with a mixture of 10% HCL and saturated pepsin.
Note: When the tested medium has sulfide pollution or protein pollution on the electrode, it should be dealt with promptly.
Storage of electrodes:
1. When the electrode is not used for a long time, it should be stored in saturated KCL solution or buffer solution.
2. The electrode cannot be dried for a long time, and the electrode cannot be stored when a dry medium is attached to the surface. Dry electrodes should be placed in a suitable preservation solution for activation before being used.
3. The electrode can be activated in buffer at pH4 or in 3M HCl (or saturated KCL).
4. Electrodes cannot be stored in distilled water.
