triOS Free Chlorine, Operating Instructions Manual

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Calibr
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Calibr
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M
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M
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M
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M
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Comm-
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Comm-
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Technical
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Technical
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D01-905en201912 Manual eCHEM Free Chlorine
Commissioning
// Free Chlorine
3 Commissioning
This chapter deals with the commissioning of the chlorine sensor. Please pay particular attention to this section and follow the
safety precautions to protect the sensor from damage and yourself from injury. Prior to electrical installation (chapter 3.2) of
the sensor, it must first be filled with gel electrolyte as described in chapter 3.1.
Before the sensor is finally put into operation, it must be ensured that it is securely attached and that all connections are
correctly made.
3.1 Preparation of the Sensor for Commissioning
Before commissioning, the membrane cap must first be filled with electrolyte. Various aspects should be taken into considera-
tion and the following steps should be carried out:
Some electrolytes contain diluted acids. Therefore, observe the warning notices on the
electrolyte bottle. Do not swallow the electrolyte. In case of skin or eye contact with the
electrolyte, rinse the affected areas thoroughly with water. Consult an ophthalmologist if the
eyes are reddened.
The use of warm water is recommended for rinsing off the gel electrolyte residues on the electrode
finger and in the membrane cap.
Gel electrolytes must not be shaken and must be stored upside down or on the sealing cap after
opening.
1. Remove the transparent protective cap from the membrane
cap. Unscrew the loosely screwed membrane cap from the
electrode shaft.
2. Place the membrane cap on a clean surface.
3. Fill the membrane cap with the enclosed electrolyte bubble-
free up to the edge.
4. Then place it on the surface again and check whether air po-
ckets can be detected. If air pockets are detected, carefully
empty the membrane cap. Then refill the membrane cap with
electrolyte bubble-free.
5. This step does not need to be performed the first time the
sensor is used: Only the tip of the dry electrode finger (=
measuring electrode) is cleaned with the enclosed special
sandpaper. To do this, place the special sandpaper on a paper
towel, hold it at one corner and run the electrode tip of the
vertically held sensor two to three times over the sandpaper.
Important: When unscrewing the filled membrane cap, be sure to push the hose ring to the side at the
marked valve opening so that air can flow into the electrolyte chamber, otherwise the membrane will
be destroyed!
Cleaning with special sandpaper
NOTICE
CAUTION
NOTICE
NOTICE