Chlorine sensors

	CL4 chlorine sensor for swimming pool and drinking water treatment free chlorine system depends on pH value
Type	CL4
Shaft	plastic, Ø 25 mm
Immersion length	120 mm
Measuring principle	amperometric 2-electrode system
Measuring range	CL4, CL4H: 0,005 ... 2 mg/l CL4N: 0,05 ... 20 mg/l
pH range	pH 6 ... 8
pH dependency	in correlation with the dissociation curve of HOCl; pH 7.2 ... 7.4 recommended
Flow rate	30 l/h recommended
Temperature range	0 ... 45 °C (temperature compensated)
Pressure	< 1 bar
Application	swimming pools, drinking water, sea and process water
Electrical connection	CL4: 4 ... 20 mA, 2-wire connection CL4H, CL4N: -100 mV per mg/l, 4-pin plug connection
Order code	CL4, CL4H, CL4N

	CS4, CP2 CS4: chlorine sensor for swimming pool and drinking water treatment free chlorine system with very low pH dependency CP2: chlorine sensor for swimming pool and drinking water treatment total chlorine system with very low pH dependency
Type	CS4	CP2
Shaft	plastic, stainless steel, Ø 25 mm	plastic, stainless steel, Ø 25 mm
Immersion length	120 mm	120 mm
Measuring principle	amperometric working potentiostatic 3-electrode system	amperometric working potentiostatic 3-electrode system
Measuring range	CS4, CS4H: 0,005 ... 2 mg/l CS4N: 0,05 ... 20 mgl/l	CP2, CP2H: 0,005 ... 2 mg/l CP2N: 0,05 ... 20 mgl/l
pH range	pH 4 ... 9	pH 4 ... 12
pH dependency	about 10 % slope reduction per pH unit	about 10 % slope reduction per pH unit
Flow rate	30 l/h recommended	30 l/h recommended
Temperature range	0 ... 45 °C (temperature compensated)	0 ... 45 °C (temperature compensated)
Pressure	< 0.5 bar	< 0.5 bar
Application	swimming pools, drinking and process water	swimming pools, drinking and process water
Electrical connection	CS4: 4 ... 20 mA, 2-wire connection CS4H, CS4N: -100 mV per mg/l, 4-pin plug connection	CP2: 4 ... 20 mA, 2-wire connection CP2H, CP2N: -100 mV per mg/l, 4-pin plug connection
Order code	CS4, CS4H, CS4N	CP2, CP2H, CP2N