6
1. Safety Precautions
Warning/caution
Caution
Take care with using heat source
Absorbents which are installed to absorption unit as standard equipment generally exercises its full
performance at gas temperature of less than 40°C.
Take care with using heat source, because the performance significantly decreases, when the gas
temperature exceeds 40°C.
Prepare the extinguisher.
Prepare the extinguisher near the draft chamber for use in case of fire.
Main body
● Though the external surfaces of the main body are coated with chemical proof paint, it may be
corroded if the paint is removed due to flaw on it.
● If the interior material is non-asbestos board, machining or strong impact to it may cause a crack,
etc.
● Large amount of gases which have been generated during experiments adhere to the interior and
working surface as fouling. Clean with water periodically.
Working surface
● If you want to use a heat source (such as gas burner and stove) on ceramitite working surface, place
the attached insulation board between working surface and heat source.
● As the working surface is made flat, please perform your operation within the spot sink not on the
working surface, if fluid may splash.
● Do not leave corrosive or flammable chemical in the hood for a long time.
Permissible heat source
In the case of LDF-150, permissible heat sources are limited to 2 gas burners or up to 2 kW of electrical
hearing (See P.29).
Cleaning of handles
Handles and handle attachments on front window sash are made of ABS plastic. Clean these parts
with mild detergent. Do not apply any organic solvents to the handle parts to prevent possible
damages.