Assembly
6
Filling with
electrolyte
IMPORTANT
• Do not touch or damage the membrane contained within the mem-
• The electrolyte gel is non-toxic and can easily be washed off skin/
NOTE
• Carry out the following tasks over a washbasin!
IMPORTANT
After filling the membrane cap, it should be screwed onto the measuring
cell shaft only after completely moistening the membrane with gel (be-
comes transparent)!
Assembling the
membrane cap
32
Assembly
brane cap or the electrodes within the electrode shaft and do not allow
them to come into contact with grease, otherwise measuring cell
precision will be lost! Replace the membrane cap with a new one or
have the measuring cell electrodes cleaned.
clothing with water.
Open the attached electrolyte cylinder and screw the socket onto it.
Remove the red sealing cap from the socket and cut off the socket above
to open the socket channel.
Remove the membrane protection cap and unscrew the membrane cap
from the electrode shaft.
Place the electrolyte cylinder socket perpendicularly to the lower edge
inside the membrane cap without touching the membrane.
Fill the membrane cap with the electrolyte right up to where the threads
start (refer to diagram 3), tighten the socket, ensuring it remains in the
electrolyte. When doing this, a few very small bubbles may form.
Check that the membrane is completely moist – the previously milky mem-
brane becomes transparent. Wait for a few moments, if necessary. Speed
up the process, if required, by carefully tapping the membrane cap several
times on a firm, even surface, which will not damage the cap. If filling is
unsuccessful, repeat the process.
Carefully place the electrode shaft perpendicularly to the filled membrane
cap and turn until it is inserted into the screw thread.
Turn the electrode shaft so that the small hole underneath the rubber seal
is showing above.
Manually screw in the membrane cap, slowly, as far as the buffer, (mem-
brane cap should not touch the rubber seal). The membrane should not
®
ProMinent