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ATTENTION
NOTE
Cleaning the sight glasses
Removal and installation of the sight glass windows
If the sight glass windows cannot be removed from the measurement
chamber, open the measurement chamber cover and then carefully
push them out from the inside. Do not apply excessive force and do
not use sharp objects that may damage the sight glass windows.
Ensure tension-free mounting of the sight glass windows. Tighten the
screws equally alternating both sides. Otherwise, the sight glass win-
dows may break.
If the instrument has been used to measure hard water for a longer
period of time, a hard-to-remove film may have formed on the sight-
glass windows. Use cleaning spirit to remove this sticky film.
Installing and operating the measuring chamber
Switch the instrument off before installing the measuring chamber.
Install the measuring chamber again. To do so, carry out the
removal steps in reverse sequence.
Connect the pump hose to the hose connector of the measuring
chamber.
When all assembly work has been completed, the pipeline system
must be bled before the instrument can be operated again.
Cleaning the housing
The surface of the instrument housing is untreated. For this reason
avoid soiling it with indicators, oil or grease. However, should the
instrument housing become soiled, clean the surface with a normal
plastic cleaner (never use other solvents).
Pump head maintenance intervals
Replace the pump head:
When the E4 indicator, "Maintenance message pump head"
flashes.
Replacing the pump head
We advise replacing the pump head after approx. 2 years because
the pump head's performance can decrease due to wear.
Carrying out maintenance
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