1
The CLE chlorine sensor is a membrane covered, amperometric, two-elec-
trode sensor. The chlorine sensor is used to determine the concentration
of free chlorine in water not containing surfactants. The water can also be
seawater. The sensor CLE 3.1 is characterized by substantially reduced cross
sensitivity to combined chlorine (monochloramine and dichloramine). Typical
applications include:
1) The chlorination of swimming pool water with high nitrogen load
(e.g. private swimming pool).
2) The chlorination of drinking water with the presence of ammonium
(e.g. surface water) or the treatment of water of comparable quality.
The sensor is available with a 2-conductor interface (mA).
2
Correct use
The sensor may be used to determine and control only concentrations of
free chlorine.
The sensor may not be used in water or solutions containing surfactants.
The sensor may not be used in connection with organic chlorine preparations
(e.g. trichloroisocyanuric acid) or stabilisers (e.g. cyanuric acid).
All other uses and modifications are prohibited.
The sensor is not a safety component.
ProMinent
®
About this sensor
Safety
CAUTION
• In order to guarantee flow parameters, this sensor may be
installed only in ProMinent DLG III or DGM in-line probe
housings. (See section 15 "Technical data").
• The outlet of the in-line probe housing must be subject to
atmospheric pressure or a minimum of 1 bar back pressure.
• The power supply to the measuring device and thereby to
the sensor must not be interrupted. After long power
interruptions (longer than 2 hours) you should run-in and
calibrate the sensor once more. (See 7.1 "Run-in period"
and 7.2 "Calibration").
IMPORTANT
• The sensor must be assembled, installed, maintained and
operated by suitably trained and authorised personnel only.
• Check the sensor regularly for dirt and deposits.
Check that there are no air bubbles clinging to the
membrane cap. (See section 8 "Troubleshooting").
• Observe the relevant national directives for care,
maintenance and calibration intervals.
About this sensor / Safety
19