Pr
o
Minent
®
Page 28
8.1.2
DULCOTEST
®
CLE Chlorine Sensor for Free Chlorine, Commissioning
8.1.2.1
DULCOTEST
®
CLE Chlorine Sensor for Free Chlorine, Assembly
Assembly
Pouring
electrolyte
IMPORTANT
• Do not touch, damage or bring into contact with greasy substances the white mem-
brane or the electrodes on the electrode shaft. The sensor will not, in such cases, work
accurately.
• Replace the membrane cap or send the sensor to ProMinent to have the electrodes
cleaned.
NOTE
Carry out the following actions over a washbasin.
Remove the red cap completely from the nozzle and cut the nozzle at the marked position to
open the nozzle canal.
Remove the membrane cap cover and unscrew the membrane cap from the electrode shaft.
Rinse the membrane cap and the electrode with a little electrolyte.
Fill the membrane cap up to the rim with electrolyte.
Remove air bubbles by lightly tapping the membrane cap on an even surface.
Assembling membrane cap
Place the electrode shaft upright onto the fi lled membrane cap and twist until the thread bites.
Rotate the electrode shaft until the vent hole is pointing upwards.
Slowly screw in the membrane cap by hand up to the stop. Excess electrolyte will seep out of
the vent hole as you screw the parts together.
Rinse away the excess electrolyte from your fi ngers and from the sensor under running water.
There should be no air left in the membrane cap/electrolyte. Repeat the above steps if there is
still air present.
Assembling
sensor
IMPORTANT
When removing and inserting the sensor from or into the in-line probe housing, do so
slowly to prevent damaging the membrane.
The sensor must be kept damp after commissioning, e.g. the in-line probe housing
should never be allowed to run dry.
Assemble the sensor as described in the operating instructions manual for the in-line probe
housing.
8.1.2.2
DULCOTEST
®
CLE Chlorine Sensor for Free Chlorine, Electrical
Installation
IMPORTANT
Do not switch the measuring system off when using intermittently.
If necessary, use a timer to switch on metering equipment.
When connecting to a
ProMinent
®
device
Safety conditions at the interface are automatically fulfi lled when connecting to ProMinent
®
controllers (e.g. DULCOMETER
®
D1C, DMT, CLD).
The CLE 3-mA is a sensor with a passive 4-20 A two-wire interface, i.e. the power supply is
external, e.g. via the controller.
Free Chlorine
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24.02.2009 11:56:04 Uhr
24.02.2009 11:56:04 Uhr