KROHNE OPTISYS CL 1100 EN - Manual (Page 10)

2
DEVICE DESCRIPTION
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OPTISYS CL 1100
www.krohne.com 01/2013 - 4002492301 - MA OPTISYS CL 1100 R02 en
2.3 Device description of the sensor
The sensor for measuring free chlorine, chlorine dioxide or ozone 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...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.
2.4 Nameplate
The system type is specified on the labelling of the measuring system package and on the
measuring system itself.
Figure 2-3: Overview of the sensor
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 2-4: Inner parts of the sensor
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.