IKA C 6000 isoperibol Package 2/12 - Manual (Page 48)

48
Cleaning the system
After the result has been recorded, you can take
out the decomposition vessel, open it and clean it.
If you suspect that the combustion sample, the
combustion gases produced or the combustion
residue could be harmful to health, wear perso-
nal protective equipment (e.g. protective gloves,
breathing masks) when handling these materials.
Harmful or polluting combustion residue must be
disposed of as hazardous waste. Express reference
is made to the applicable regulations.
In order to obtain accurate measurements it is
essential that the decomposition vessel is clean
and dry. Impurities alter the heat capacity of the
decomposition vessel and thus cause inaccurate
measuring results. It is important to thoroughly
clean the inner walls of the vessel, the internal fi t-
tings (brackets, electrodes etc.) and the combus-
tion crucible (inside and out!) after each combus-
tion test.
In most cases all that is necessary is to remove
condensate from the inner walls of the vessel and
the internal fi ttings. It is suffi cient to thoroughly
wipe the parts with an absorbent, non-fi brous
cloth.
If the decomposition vessel cannot be cleaned in
the above way (e.g. due to baking, pitting, corro-
sion etc.), please contact Technical Service.
The combustion residue in the crucible, e.g. soot
or ashes, should also be wiped away with an ab-
sorbent non-fi brous cloth.
Servicing and cleaning the fi lter
Servicing
Check the fi lter every week or according to expe-
rience. Over time the fi lter becomes clogged with
sludge thereby causing a reduction in the cooling
water fl ow rate. Do not use distilled or demineralized water
(increased risk of corrosion)! Fill the cooler
according to the cooler operating instructions. is
recommended in drinking tap water quality. Mix
in (max. 1 ml for 4-5 l of water) of the supplied
water additive. Thus, the durability of the water is
improved.
Displaying/hiding the sample rack
You can prepare a maximum of 12 measurements
in the sample rack, and process them in any or-
der. The assignment remains saved even when the
IKA
® C 6000 global standards/isoperibol calori-
meter is switched off. If a crucible unsuitable for
the specifi ed procedure is set or taken out, a mes-
sage appears and the action must be reversed.
Caution: if you change the assignment of the
sample rack whilst the IKA
® C 6000 global stan-
dards/isoperibol calorimeter is switched off you
must discard all samples!
In serious cases (such as accidental removal of
crucibles whilst the calorimeter is switched off),
click on the „Reset sample rack“ button. This
deactivates the sample rack. Remove all the cruci-
bles still standing in the sample rack. The measu-
rements for them still remain displayed in the list
but can no longer be used. After this you can once
again click on „Use sample rack“.
When the IKA ® C 6000 global standards/isope-
ribol calorimeter is restarted the last rack assign-
ment is saved and can continue to be used.
Cleaning