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2.5
Use of probes
DO NOT INSERT ANY PROBES INTO THE FURNACE CHAMBER either down the chimney,
round the door or by modification to the furnace in any way.
MICROWAVE ENERGY! Do not insert any metal objects into the case!
HIGH VOLTAGE! Do not insert any metal objects into the case!
2.6
Microwave arcing
Precautions should be taken to avoid the formation of arcs in the furnace. These may be
caused by some materials, especially metals, their shapes and locations.
2.7
Explosive materials
The furnace must not be used to heat materials which could explode, or which could emit
gases that could form explosive mixtures.
Great care should be taken in attempting to translate protocols developed in other apparatus
for use in a Microwave Assist Technology (MAT) furnace. Unlike conventional radiant heating
furnaces, MAT furnaces apply MW heating instantaneously to susceptible samples. Unlike in
MW only apparatus thermal reactions are not contained within or regulated by a reaction
vessel or bomb. In particular it is recommended that initially only gradual heating and small
sample sizes are employed until a protocol has been perfected. This is especially important in
circumstances where instantaneous heating from the application of MW energy may initiate an
exothermic reaction in the sample.
2.8
Use after transport or storage in humid conditions.
After transport or storage in humid conditions this furnace may fail to reach electrical safety
standards due to a build up of condensation. The furnace must be operated for at least one
hour at or above 500°C to dry it out.
The furnace can not be assumed to meet safety standards during the drying out process.
If the furnace is being switched on for the first time, then following the burn off process will dry
the furnace.
Note; if after following the drying procedure the furnace has note fully dried then repeat the
procedure, if in doubt contact Carbolite.
8
MRF 16/22
MF 55-GB 1.21
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