BINDER VD 23 - Manual (Page 19)

VDL (E2.1) 04/2014 page 19/107
DANGER
Electrical hazard.
Danger of death.
∅
The oven must NOT become wet during operation or maintenance.
CAUTION
The inner chamber will become hot during operation.
Danger of burning.
∅
Do NOT touch the inner surfaces or the charging material during operation.
When operating the VDL vacuum drying oven with inert gas, correctly follow the technical ventilation
measures, as described in the guideline BGI/GUV-I 850-0 on safe working in laboratories (formerly
BGR/GUV-R 120 or ZH 1/119 laboratory guidelines issued by the employers’ liability insurance associa-
tion) (for Germany).
Do not start up the unit without technical ventilation.
During operation with inert gas, the unit is supplied with an oxygen displacing gas (e.g. N
2
). Inert gases in
high concentrations are hazardous to health. They are colorless and almost odorless and therefore practi-
cally imperceptible. Inhalation of inert gases can cause drowsiness up to respiratory arrest. When the O
2
content of the air decreases below 18%, there is risk of death from lack of oxygen. Any gas that might
escape has to be led out via good room ventilation or a suitable exhaust system.
WARNING
High concentration of inert gas.
Risk of death by suffocation.
∅
Do NOT set up units in non-ventilated recesses.
 Ensure technical ventilation measures.
 Respect the relevant regulations for handling these gases.
 When decommissioning the vacuum drying oven, shut off the inert gas supply: Close
valve (6).
If solvent-containing air penetrates the electrical area of the oven, explosions may result.
DANGER
Solvent-containing air penetrating the electrical area of the oven.
Explosion hazard.
∅
Do NOT take the air, which will be used to supply the unit with compressed air, from a
potentially explosive atmosphere.
Avoid the solvent accumulation in the vacuum module (option) as this would cause the vacuum
module to become an explosive area (Zone 0 or 1 or 2). The VDL vacuum drying oven located
on top of the module is not explosion-proof constructed in regards to its surroundings.