IKA C 200 - Manual (Page 6)

6
1 Safety instructions
der such as splints, hay, straw etc. explode
when combusted! Always wet these materi-
als first! Highly flammable liquids with a low
vapour pressure (e.g. tetramethyl dihydrogen
disiloxane) must not directly touch the cotton
thread!
• Furthermore, toxic combustion residue in the
form of gases, ashes or condensation, for ex-
ample, is possible in the inner wall of the de-
composition vessel.
• When handling combustion samples, com-
bustion residue and auxiliary materials, please
observe the relevant safety regulations. The
following materials, for example, could pose a
risk:
– corrosive
– highly flammable
– explosive
– bacteriologically contaminated
– toxic
• Please observe the relevant regulations when
handling oxygen.
Warning: oxygen as a compressed gas is
oxidising; intensively aids combustion; can
react violently with flammable materials.
Do not use oil or grease!
• Caution - magnetism! Effects of the mag-
netic field have to be taken into account (e.g.
data storage media, cardiac pacemakers ...).
• When using stainless steel crucibles tho-
roughly check their condition after each expe-
riment. If the material gets thinner, the crucible
may catch fire and damage the decomposition
vessel. Crucibles must not be used for more
than 25 combustions for safety reasons.
• The decomposition vessel is manufactured in
accordance with the directive for pressure
equipment 97/23/EC.
This is indicated by the CE symbol with the ID
number of the notified body. The decompositi-
on vessel is a category III pressure device. The
decomposition vessel has undergone an EC
prototype test. The CE declaration of confor-
mity confirms that this decomposition vessel
corresponds to the pressure device described in
the EC prototype test certificate. The decompo-
sition vessel has undergone a pressure test
For your protection
• Read the operating instructions in full
before starting up and follow the safety
instructions.
• Keep the operating instructions in a place whe-
re they can be accessed by everyone.
• Ensure that only trained staff work with the ap-
pliance.
• Follow the safety instructions, guidelines,
occupational health and safety and acci-
dent prevention regulations.
• Wear your personal protective equipment
in accordance with the hazard category
of the medium to be processed.
• Calorimeter system C 200 may only be used to
determine the calorific value of solid and fluid
materials. Only the appropriate original IKA
®
decomposition vessels may be used for this
purpose. For detailed information, please see
the operating instructions for the decomposi-
tion vessels.
• The maximum extra energy added to the de-
composition vessel must not exceed 40,000 J
(select the test mass accordingly). The permit-
ted operating pressure of 230 bar must not be
exceeded. The maximum permitted operating
temperature must not exceed 50 °C.
• Do not overfill the decomposition vessel with
sample. Only fill the decomposition vessel with
oxygen to a maximum pressure of 40 bar.
Check the set pressure on the pressure reducer.
Perform a leakage test before each combustion
process (follow operating instructions for de-
composition vessel!).
• Some materials tend to explode when combus-
ted (e.g. due to formation of peroxide), which
could cause the decomposition vessel to crack.
• Standard decomposition vessels may not
be used for testing explosive samples.
• If the burning behaviour of a material is unk-
nown, it must be tested before combustion in
the decomposition vessel (risk of explosion). If
you are burning unknown samples, leave the
room or keep your distance from the calorime-
ter.
• Benzoic acid may only be combusted in its
pressed form! Flammable dust and powder
must be first pressed. Oven-dry dust and pow