Servicing and maintenance
69
Setting indicator fill level
The indicator fill level must be set when refilling the indicator bottle
set or reset during a replacement.
Select the menu
=> Service => Reagent => Filling level
100%
With "OK”, the current fill level is reset to 100 percent.
If only the fill level should be reset, confirm the fill level with "OK
or.
Change the value of the fill level with the cursor keys and subse-
quently confirm with "OK".
Cleaning of the measuring chamber and the view-
ing windows
Cleaning interval: ¼ yearly
Switch off the device or press the "Pause" button
Check that the measuring chamber is completely emptied.
Connect the manual valve of the secondary line to the Testomat
®
EVO TH.
Release the spring lock, tilt the measuring chamber upwards and
take it out.
Remove both the viewing window holders and then remove the
viewing windows for cleaning.
Remove the film on the viewing windows with alcohol.
Clean the measuring chamber with 10 percent hydrochloric acid
and then rinse it thoroughly.
Reinsert the viewing windows after cleaning and fix them in place
with the viewing window holders
Do not forget to insert the O-ring seals and be careful to ensure
correct fitting in the groove.
Put the measuring chamber back in place by tilting the unit and
secure it with the spring lock.
Cleaning the filter housing
Cleaning interval: ½ yearly
Connect the manual valve of the secondary line to the Testomat®
EVO TH.
Press the "Pause" button and wait until the current measurement
has finished.
Release the piping system of the Testomat
®
EVO TH CALwith the
function Internal flush manually.
Switch off the device.
Remove the hose connections on the filter housing.
Unscrew the supply nozzles.
Remove and clean the seal, spring and filter.
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