The
chlorine sensor consist of an amperometric sensor
assembly and a flow cell. The sensor is capable of
measuring disinfectant in clean water contaminated
with debris due to the unique flow cell design. The
sensor assembly includes the sensor body with 6 meters
(20 feet) off cable, replaceable membrane cap, a 6 ml
bottle of electrolyte fill solution, a clip ring and
an o-ring. The oxidiser molecules diffuse through the
membrane and in the acidic environment of the
electrolyte fill solution, a redox reaction occurs at
the electrodes in the sensor. The current generated by
this reaction is converted to a robust voltage signal
that is linear with the concentration of the oxidiser
Summary of key benefits
WDIS sensors
• long-lasting amperometric electrodes with rugged membranes
• integrated temperature compensation
• relatively insensitive to changes in sample flow rates
• large flow cell openings which prevent clogging
• excellent long-term stability
WDIS controllers
• versatile relay configuration. Control outputs can be set as high or low set points via key-pad. Auxiliary outputs can be set as: high
• alarm, low alarm, in-range or out- of range output and probe wash
• programmable access code
• display shows at a glance the free chlorine, chlorine dioxide, peracetic acid or ozone values, analog graph relative to set points and
• status of alarms, outputs
• self diagnostics constantly monitor software and electronics whilst in operation
Sensor specifications
