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8.11.2
DULCOTEST
®
CDE Chlorine Dioxide Sensor and DULCOTEST
®
Sensor
PHEP or PHER for pH, Commissioning
8.11.2.1
DULCOTEST
®
CDE Chlorine Dioxide Sensor and DULCOTEST
®
Sensor
PHEP or PHER for pH, Assembly
Assembly
DULCOTEST
®
CDE Chlorine Dioxide Sensor
Pouring electrolyte
IMPORTANT
• The membrane at the lower end of the membrane cap and the electrodes at the lower
end of the electrode shaft should not be touched, damaged or brought into contact with
greasy substances! Otherwise the sensor will not work correctly. If this is the case,
replace membrane cap or return for refurbishing the electrodes.
• Protect yourself and your clothing from contact with the electrolyte (acid!) using ap pro-
pri ate protective equipment. The electrolyte can cause irritation to skin and damage to
clothing. In case of contact, rinse immediately with plenty of cold water.
NOTE
Carry out the following steps at the washbasin!
Open the electrolyte bottle and screw on the nozzle.
Remove the red cap completely from the nozzle and cut off the end of the nozzle.
Remove the membrane cap and unscrew the membrane cap from the electrode shaft.
Rinse the membrane cap and the electrode with a small amount of electrolyte.
Fill the membrane cap up the top with electrolyte and allow electrolyte to overfl ow down the
inside wall.
Assembling membrane cap
Locate the electrode shaft vertically onto the fi lled membrane cap and turn until the thread
bites.
Rotate the membrane cap so that the vent hole is at the top.
Slowly screw on the membrane cap by hand up to the stop. In the process the excess
elec tro lyte will seep out of the vent hole.
Rinse sensor under running water to remove excess electrolyte from the sensor and from
hands.
Inserting the sensor
IMPORTANT
• The sensor must be slowly inserted into or withdrawn from the in-line probe housing!
The diaphragm could otherwise be damaged.
• Do not touch the in-line probe housing fl ow resistor with the membrane!
• The sensor must be kept wet at all times once commissioned - e.g. the in-line probe
housing must not be allowed to run dry.
Assemble the sensor as described in the operating instructions supplied with the in-line probe
housing.
Assembly
DULCOTEST
®
Sensor PHEP or PHER for pH
Before putting into operation, the protective cap or case must be removed from the glass or
metal electrode. The glass or metal electrode must be free from oil, grease and other contamina-
tions. Likewise, the membrane of the reference electrode must be free from scale deposits, dirt
or crystallized matter. For these reasons, electrodes should never be touched by hand.
Remove the blanking plug of the respective measuring module at the fi ttings of the measuring/
control station DULCOTROL
®
and install the DULCOTEST
®
PHEP or PHER sensor for pH.
pH/Chlorine Dioxide
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