Memmert INB 200 - 500 Incubators (Generation 2003) - Manual (Page 6)

BASIC page 6
3.4 Initial start-up
When the oven is started up for the first time, it should be supervised continuously until steady conditions
have been reached. Severe vibrations during transport may cause movement of the temperature probe in
its holder inside the chamber. Note therefore that before the first start-up the temperature probe should
be checked for its correct position and, if necessary, carefully aligned in its mounting (see ill).
3.5 Oven load
Full consideration must be given to the physical and chemical properties of your load (e.g. combustion
temperature etc.) in order to prevent serious damage to load, oven and surroundings.
Please note that the MEMMERT ovens described here are not explosionproof (they do not conform to the
Industrial Association Specification VBG 24) and are therefore not suitable for drying, evaporating and
burning-in of paints, enamels or similar materials whose solvents may produce an inflammable mixture
with air. There must be no possibility of the formation of inflammable gas/air mixtures either within the
oven chamber or in the immediate surroundings of the equipment.
Large amounts of dust or corrosive fumes inside the oven chamber or in the surroundings of the equipment
may produce deposits within the oven and lead to short-circuits or damage the electronics. It is therefore
important that adequate precautions are taken against excessive dust or corrosive fumes.
In order to ensure proper air circulation inside the chamber, there must be sufficient spacing of the load
inside the oven. Do not place any load on the floor, against the side walls or underneath the ceiling of the
chamber (heating ribs). In order to ensure optimum air circulation the shelves must be so inserted that the
air spacings between door, shelf and rear chamber wall are approximately equal.
The maximum number and the loading of the shelves can be found in the
table in the Section „Technical
Data“ . With unfavourable loading (too closely spaced) and completely opened ventilation it is possible that
the set temperature may be reached only after a longer period of time.
See stick-on label “Correct Loading“ on the oven!
Ill: Chamber ceiling with Pt 100 metal temperature probe