Free Chlorine Sensor Digital
Online measurement of free chlorine
Amperometric probe with separation membrane
The free chlorine probe is based on the electrochemical measurement method, with a measurement cell that captures the free chlorine generated by inorganic chlorine products (hypochlorite, gaseous chlorine, etc.).
Thanks to this measurement method, variations in pH have a very low impact on the measurement. Temperature compensation is performed automatically by the sensor.
The free chlorine probe is a potentiostatic system with 3 electrodes covered by a permeable membrane.
The measuring electrode is placed in an area containing a suitable electrolyte and separated from the water to be measured. Chlorine passes through the membrane and reacts with the electrolyte by creating an electrical signal proportional to the concentration of chlorine diffused. The signal recovered by the measuring electrode is then amplified by the electronics of the sensor. An integrated Pt100 automatically compensates the measurements according to temperature variations.
- Stable and precise measurements compensating for temperature variations.
- Measuring technology with low dependence on pH variations
- Flow cell for constant pressure and flow
- Ready to use
|Measuring ranges||- 0 ... 2 mg/l|
- 0 ... 20 mg/l
|Measurement accuracy||± <1% range 0 ... 2 mg / l|
± <3% range 0 ... 20 mg / l
|Response time||T90% - 2 min|
|Temperature compensation||automatic Pt100 integrated|
|Materials||hydrophilic micro-porous membrane, PVC-U, stainless steel|
|Dimensions (L x Ø)||205 mm x 25 mm|
|Interface||5S-485, Modbus RTU|
|Power consumption||0.6 W|
|Power supply||12 to 24 VDC|
|Maintenance time||<0.5 h / month|
|Calibration interval||24 months|
|Maximum working pressure||3 bars|