Maintenance
39
Resetting the analysis counter
Testomat
®
808 automatically calculates the number of analyses
depending on the set bottle size.
The instrument cannot measure the actual filling level of the indicator
bottle!
Only reset the analysis counter to 100% after inserting a new
indicator bottle!
Cleaning the measuring chamber and the sight-
glass windows
Switch off the instrument.
Close the stop valve in the branch line to Testomat
®
808.
Prior to disassembling the measuring chamber, disconnect the
cable from the LED holder and loosen the pump hose at the
hose connector of the measuring chamber.
You can also remove the indicator bottle to facilitate access.
Loosen the two screws fixing the solenoid valve to the rear
panel. Press down the top locking ring of the solenoid valve to
allow the valve to be pushed down onto the support.
Turn the angled hose connector upwards. Press the locking
ring of the top angled hose connector upwards and remove the
outlet hose.
Turn this angled hose connector upwards to ensure that any
residual water cannot escape from the measuring chamber. Now
simply pull the measuring chamber off the retaining bolts towards
the front.
To drain the measuring chamber, turn the bottom angled hose
connector downwards and let the residual water drain off.
Disassemble the measuring chamber as follows for cleaning:
Loosen the 4 screws (7) of the measuring chamber cover (4) and
remove the cover and the flat seal (8).
Remove the dosing needle (5) from the measuring chamber.
Loosen 1 screw (6) on each side to remove the sight-glass window
holders (2) at the sides of the measuring chamber.
Remove the sight-glass windows (9) and the respective flat seals
(8).
Use isopropanol to clean the film off the sight-glass windows. 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. In this case, clean the sight-glass windows
and the measuring chamber as described below.
Clean the measuring chamber with a cleaning agent suitable for
decalcification and rust removal (max. 5 – 10% solution). Flush the
measuring chamber thoroughly after cleaning.
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