CL5: Free Chlorine Sensors


Parameter : CL
Range : 0 to 20 ppm
Display : Nil
Accuracy : ± 0.5% / 1.0% of F.S
Power Supply : 24V AC
Max Pressures : Upto 7 Bar


Special Features :
Amperometric Sensor Technology
Real Time Continuous Measurement
Ranges: 0-2, 0-5 or 0-10ppm
Built-In Temperature Compensation
Large Electrolyte Reservoir
Replaceable Membrane and Electrolyte
Applications :

The CL series (free chlorine sensors) feature amperometric measurement technology. Designed for disinfection applications in water treatment,for,pools,etc.,these sensors are available in three ranges for detecting ppm level of free chlorine. Choose the CL502 for 0-2ppm, CL505 for 0-5ppm and CL510 for 0-10ppm of free chlorine

Typical applications include:

Industrial wastewater
Cooling water
Bottle rinsing
Irrigation water in agriculture

Sensors output a 4-20mA signal scaled to 0-2 or 0-10ppm. Membrane cap
and fill solution are easily replaceable to maximize sensor life.

Sensors can be used in new installations with Omicron’s flow cell or installed
as replacement for other 4-20mA output free chlorine sensors.
(Consult Omicron for compatibility).

An optional flow meter (FM001) is available to help provide consistent flow
for added system stability.


Additional information

Measuring Range

: 0-2, 0-5 or 0-10 ppm free chlorine

pH Range

: 5.5 – 8.5

Body Material


Membrane Cap Material

: PVC housing, Proprietary Membrane

Temperature Range

: 0 – 45 Degrees C

Max Pressures

: 14.7 psig (1 Bar)

Temp Comp

: Integrated

Cable Length

: 10 feet 2 conductors, tinned leads

Process Connection

: flow cell 1/4 inch FNPT threads


: 4-20mA

Flow Range

: Min 0.2 gpm (45 l/hr), Max 0.6 gpm (135 l/hr)

Supply Voltage

: 12-24V DC , 250mA minimum

Cross Sensitivity

: Chlorine dioxide, Ozone, bromine, iodine