Maintenance
38
Description of maintenance work
Carry out the maintenance work described below on a regular basis.
Bleeding the lines
Bleed the lines after each mechanical step to ensure trouble-free
operation of the instrument. To achieve this, proceed as described
in the section entitled “Replacing the indicator bottle” on page 38!
Replacing the indicator bottle
If Testomat
®
808 displays the error message “Low indicator level”,
replace the indicator bottle (refer to the section entitled “Error
messages/Troubleshooting” on page 32) for information about error
messages). Proceed as follows:
Put the instrument into standby mode. If a measuring process is
currently running, wait until it has been completed.
Proceed as follows to remove the empty indicator bottle:
disconnect the intake hose from the hose connector at the top of
the indicator bottle and remove the empty bottle.
Insert the new indicator bottle as described in the section entitled
“Inserting the indicator bottle” on page 26.
Bleed the lines after inserting a new indicator bottle. To achieve
this, press key 1 (manual) for approx. 2 seconds. The dosing pump
starts to run.
Let the pump run until no more bubbles escape from the dosing
needle. Then press key 1 (manual) again for approx. 2 seconds to
switch off the pump.
Correct bottle size
Make sure that the correct indicator bottle size is set via slide
switch T2 (see the section entitled “Slide switch T2” on page 17)!
After bleeding the lines, press key 4 (horn) for approx. 2 seconds
to reset the internal analysis counter to 100%.
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