Residual chlorine sensors are based mostly on different measuring ideas, can be divided into diaphragm polarographic sensor and fixed voltage sensor.
Used for steady monitoring of residual chlorine.
diaphragm polarographic sensor, cathode, anode, electrolyte and cathode coated with a layer of gasoline permeable thin movie composition. The remaining chlorine within the tested resolution diffuses to the cathode by way of the diaphragm, and the cathode and anode are appropriate the polarization voltage can cut back the residual chlorine at the cathode, and these chemical reactions happen in the residual chlorine within the measured resolution chlorine is proportional to the present.
constant voltage sensor, composed of two platinum electrodes and a reference electrode to type a microbattery measurement system. During measurement, a steady electrical potential is maintained at the measuring end of the electrode, and different parts are produced under this electrical potential generate completely different, nicely linear present intensities.
polarographic sensor is characterised by:
Sensitive response, excessive accuracy, good stability
Simple operation and small upkeep
Suitable for all kinds of media, film just isn’t easy to break, air pollution resistance
constant voltage type sensor is characterised by:
With steady zero efficiency, to ensure correct and reliable measurement
Simple construction, simple to wash
It is appropriate for measuring residual chlorine, chlorine dioxide and ozone in water
Correction:
Zero level correction
Zero correction with chlorine-free water
Slope correction
Actual measurements are made in a transportable or laboratory setting
Make alignment
Matters needing attention:
PH must be managed at 5-8pH
The flow ought to be managed at 60-80L/H
The strain is within 4bar
Read more about water high quality:
Turbidity meter working precept
Main water high quality indicators
COD VS BOD
What is salinity meter?
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Residual chlorine sensors are primarily based on completely different measuring rules, could be divided into diaphragm polarographic sensor and constant voltage sensor.
Used for steady monitoring of residual chlorine.
diaphragm polarographic sensor, cathode, anode, electrolyte and cathode coated with a layer of gasoline permeable thin movie composition. The remaining chlorine in the examined solution diffuses to the cathode via the diaphragm, and the cathode and anode are appropriate the polarization voltage can scale back the residual chlorine at the cathode, and these chemical reactions occur within the residual chlorine in the measured solution chlorine is proportional to the current.
constant voltage sensor, composed of two platinum electrodes and a reference electrode to form a microbattery measurement system. During measurement, a steady electrical potential is maintained on the measuring finish of the electrode, and different elements are produced underneath this electrical potential generate different, nicely linear present intensities.
polarographic sensor is characterized by:
Sensitive response, high accuracy, good stability
Simple operation and small maintenance
Suitable for all kinds of media, movie isn’t simple to damage, pollution resistance
fixed voltage kind sensor is characterized by:
With stable zero performance, to ensure accurate and dependable measurement
Simple structure, straightforward to clean
It is suitable for measuring residual chlorine, chlorine dioxide and ozone in water
Correction:
Zero level correction
Zero correction with chlorine-free water
Slope correction
Actual measurements are made in a portable or laboratory setting
Make alignment
Matters needing consideration:
PH must be managed at 5-8pH
The flow ought to be managed at 60-80L/H
The strain is inside 4bar
Read extra about water quality:
Turbidity meter working principle
Main water high quality indicators
COD VS BOD
What is salinity meter?