VDL (E3) 09/2019 Page 65/234
Observe the permissible gas inlet temperature of the vacuum pump in use. Do NOT exceed this
temperature. If the gas inlet temperature is too high and then becomes even warmer by compression in
the pump, the resulting temperature (of the gas-solvent mixture inside the pump) could exceed the sol-
vent’s temperature class and auto-ignition temperature .
DANGER
Fire and explosion hazard by exceeding the auto-ignition temperature of the solvent
with a too high gas inlet temperature.
Damage to the vacuum pump. Serious injury or death from burns and / or explosion
pressure.
Do NOT exceed the maximum gas inlet temperature of the pump. Adjust the tempera-
ture set-point accordingly.
With a higher set-point temperature, take appropriate measures to cool down the
extracted vapor before it enters into the vacuum pump.
Extracted vapors can have a health damaging and/or corrosive effect on the chamber and pump.
CAUTION
Health hazard due to release of extracted vapors.
Corrosion of oven and pump. Damage to health.
Conduct the extracted vapors e.g., into a fume extractor facility. Connect a suitable
hose to the vacuum pump outlet that may be located in the pump module.
To avoid condensation inside the chamber and in the suction system, select an appropriate vacuum
source to ensure its sufficient performance in relation to the released amount of steam. Coordinate drying
temperature, suction performance of the vacuum source and the amount of loading material.
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