KROHNE OPTISENS CL 1100 EN - Manual (Page 9)

DEVICE DESCRIPTION
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OPTISENS CL 1100
www.krohne.com 01/2012 - 4001834501 - MA OPTISENS CL 1100 R01 en
2.2 Device description of the sensor
The sensor for measuring free chlorine, chlorine dioxide or ozon is characterised by a robust
design and extremely low maintenance requirements. The sensor comprise double gold
electrodes and a low maintenance gel filling. The sensor measurement is virtually flow
independent above 30 l/h (7.93 gal/h), the optimum is a stable flow between 50...150 l/h (13.21
gal/h...39.63 gal/h).
The sensor is equipped with the patented Automatic Sensor Cleaning (ASR, Patent Dr. A.
Kuntze). An electrochemical process causes outgassing on the gold electrodes, dissolving even
tough coatings such as lime deposits. The ASR considerably increases the life span of the
sensors, achieving high measuring stability with extremely low maintenance requirements.
2.3 Nameplate
The sensor type is specified on the labelling of the sensor package and on the sensor itself.
Figure 2-2: Overview of the electrode
1 Protective cap over electrical connector
2 Electrical connector
3 O-ring
4 Hexagonal nut to screw in sensor by hand
5 Sensor thread
6 Washer
7 O-ring
8 Glass tube
9 Diaphragm
10 Gold electrode
Figure 2-3: Inner parts of the electrode
1 Connections of the measuring and counter electrode in the inner glass tube
2 Gel filling of the outer glass tube
3 Measuring and counter electrode (gold)
4 Diaphragm
5 Reference electrode
INFORMATION!
Look at the device nameplate to ensure that the device is delivered according to your order.
Check for the correct supply voltage printed on the nameplate.
.book Page 9 Wednesday, February 1, 2012 11:58 AM