| Specification | Details |
|---|---|
| Model / Code | CLS2-1H |
| Measurement | Free Chlorine (PPM) |
| Measuring Method | Membrane ion selective amperometric 3-electrode system with integrated electronics |
| Range | 0.005–2 ppm (mg/L) free chlorine |
| Resolution | 0.001 ppm (mg/L) |
| Signal (Nominal Slope) | -1000 mV/ppm |
| Output Signal | Analog voltage output 0 to -2000 mV; output resistance 1 kΩ; no galvanic isolation |
| Operating Temperature | >5 to <45°C, automatic compensation by integrated resistor |
| pH Range | pH 4–12 |
| Flow Rate / Pressure | Approx. 30 L/h / 0.5 bar |
| Run-in Time | Approx. 2 hours at first start-up |
| Response Time | T90 approx. 2 min |
| Slope Adjustment | Reference method DPD4 (DPD1 + DPD3) |
| Zero Point Calibration | Not necessary |
| Connection | 4-pole screwable plug |
| Material | Microporous hydrophilic membrane; PVC-U body; S.S. 1.4571 electropolished |
| Dimensions | Ø approx. 25 mm × Length approx. 175 mm |
CLS2-1H Membrane ION Selective Sensor for measuring Free CL (PPM)
Membrane ion selective amperometric 3 electrodes system, integrated electronics for measuring Free Chlorine, compatible with Surfactants, Tensides, Isocyanuratic, Flocculants. CLO2 is measured at 100%.

