IKA C 3000 isoperibol, Руководство по эксплуатации

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5
Safety instructions
Read the operating instructions in full before
starting up and follow the safety instructions.
• Keep the operating instructions in a place where they can be
accessed by everyone.
• Ensure that only trained staff work with the device.
• Follow the safety instructions, guidelines, occupational health
and safety and accident prevention regulations.
• The IKA
®
C 3000 isoperibol calorimeter system may be used
only in conjunction with the decomposition vessels C 6010
or C 6012 for determination of the calorific values
of solid and liquid substances to national and international
standards (such as ISO 1928, ASTM 240, ASTM 5865, GB
T213 und ASTM 4809).
• The maximum extra energy added to the decomposition ves-
sel must not exceed 40,000 J (select the test mass according-
ly). The permitted operating pressure of 230 bar (23 MPa)
must not be exceeded. The maximum permitted operating
temperature must not exceed 50 °C .
• When burning substances containing metals, ensure that the
maximum energy input is not exceeded!
• Only fill the decomposition vessel with oxygen to a maximum
pressure of 40 bar (4 MPa) . Check the pressure setting on
the pressure reducer for your oxygen supply. Perform a leak-
age test before each combustion process (see section “Leak-
tightness testing“).
• Some materials tend to explode when combusted (e.g. due
to formation of peroxides), which could cause the decompo-
sition vessel to crack. The IKA
®
C 3000 isoperibol calorim-
eter may not be used for testing explosive samples .
• If the burning behaviour of a material is unknown, 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 calorimeter.
• Benzoic acid may only be combusted in its pressed form!
Flammable dust and powder must be first pressed. Oven-
dry dust and powder such as splints, hay, straw etc. explode
when combusted! Always wet these materials first! Highly
flammable liquids with a low vapour pressure (e.g. tetra-
methyl dihydrogen disiloxane) must not directly touch the
cotton thread!
• Furthermore, toxic combustion residue in the form of gases,
ashes or condensation, for example, is possible in the inner
wall of the decomposition vessel.
WARNING
Observe the accident prevention
requirements applicable to the
activity and the work station.
Wear your personal protective
equipment.
• When handling combustion samples, combustion 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 .
DANGER
Warning: oxygen as a compressed
gas is oxidising; intensively aids
combustion; can react violently
with flammable materials.
Do not use oil or grease !
• Tubes and screwed joints for oxygen must be kept free of
grease.
DANGER
Combustion gases are hazardous
to health, therefore the venting
hose must be connected to a
suitable gas cleaning system or
extraction system.
• At the end of the work period, close the main valve for the
oxygen supply.
• Perform servicing work only when the equipment is
depressurised.
• When using stainless steel crucibles thoroughly check
their condition after each experiment. 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 2014/68/EU. This is
indicated by the CE symbol with the ID number of the noti-
fied body. The decomposition vessel is a category III pressure
device. The decomposition vessel has undergone an EC pro-
totype test. The CE declaration of conformity confirms that
this decomposition vessel corresponds to the pressure device
described in the EC prototype test certificate. The decomposi-
tion vessel has undergone a pressure test with test pressure
of 33 MPa and a leakage test with oxygen at 3 MPa .
• Refer also to the operating instructions for the C 6010/ 6012
decomposition vessel, see chapter “maintenance of the de-
composition vessel“.
• Decomposition vessels are experiment autoclaves and must
be tested by a technical expert after each use.
• Individual use is understood here to include a series of experi-
ments performed under roughly the same conditions in terms
of pressure and temperature. Experiment autoclaves must be
operated in special chambers
• The decomposition vessels must undergo repeated tests (in-
ternal tests and pressure tests) performed by the technical
expert . The frequency of these tests is to be determined by
the operator on the basis of experience, type of operation
and the material used in the decompositionvessel.
• The declaration of conformity becomes invalid if mechanical
modifications are carried out to the experiment autoclaves or
if tightness can no longer be guaranteed as a result of major
corrosion (e.g. pitting by halogens).
• In particular the threads on the pressure vessel and the union
nut are subject to considerable stress and must therefore be
checked regularly for wear.
• The condition and function of the seals must be checked and
ensured by way of a leakage test (see the operating instruc-
tions for the C 6010/ 6012 decomposition vessel, section
“Leaktightness testing“).