Maintenance
43
Replacing a reagent bottle without a shortage no-
tification
You can also replace the reagent bottles, if a storage message has
not yet appeared, e.g. if the reagent reservoir is low or the
reagent’s
expiry date has been exceeded.
Replace a reagent bottle, as described under section Inserting the re-
agent bottle on page 18.
Set the reagent reservoir to 100% again.
Press the
100%
function key and keep it pressed down until the
yellow LED above it lights up.
The reagent reservoir has been set to 100%.
Maintenance message pump head
During operation, the effective run time of both pump heads is
counted. When a run time of 150 hours is reached, the maintenance
message 25 or 26 for the pump head appears (see chapter Mainte-
nance message on page 39). During normal operation (analysis inter-
val, every 15 min), this run time is achieved after approximately 2.5
years or 81000 analyses.
Maintenance interval for the pump head
We recommend replacing the pump head after 2 years as the perfor-
mance of the pump head can decrease due to wear-and-tear. Always
replace the pump head if the maintenance message 25 or 26 is dis-
played.
Replacing the pump head
To replace the pump head, proceed as described below:
Remove the transparent cover.
Open the housing with a suitable screwdriver (push down the
snap-on fastening on both sides).
Carefully pull-out the pump head with a drive mounting bracket.
Loosen both screws
at the pump head.
Pull the pump head from the motor shaft.
Place the new pump head on the shaft. The short hose with the
stopper
must be on the left-hand side.
Anti-twist guard
Please observe the anti-twist guard on the motor shaft and the pump
head during installation! The drill hole and the shaft each have a flat
surface and only fit together in one position. Carefully turn the pump
head into the correct position until the snap-in noses snap into the
provided drill holes in the housing.
NOTE
NOTE
keep
pressed
down
reagent
at 100%
