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Safety information
Labels and signs
Overheating protec-
tion, blockage pro-
tection
Procedure for
switching back on
ATEX equipment
category
20
Dry ice must not be used in gas-tight containers. Do not secure
the cover on the dry ice condenser. Pressure equalization be-
tween coolant and the atmosphere must be ensured at all times.
Keep signs legible
Keep any signs affixed to the device in an easily readable condi-
tion:
ð Connection labels
ð Warning and information signs
ð Motor data and rating plates
2.9 Motor protection
The pump motor has a temperature sensor on the circuit board
as overload protection. In the event of excessive temperature or
if the motor is blocked, the vacuum pump switches off.
If the vacuum pump is switched off due to these safety precau-
tions, the error must be cleared manually: Disconnect pumping
unit from power supply -> Eliminate cause of error -> Restart
pumping unit.
2.10 ATEX equipment category
Installation and potentially explosive atmospheres
Installation and operation in areas where potentially explo-
sive atmospheres can develop to a hazardous degree is not
permitted.
The user is responsible for assessing the risks posed by the
equipment in such a way that any safety measures necessary
for installation and safe operation can be implemented.
ATEX approval only applies to the internal, wetted parts of the of
of the device, not to its surroundings.
ATEX equipment labeling
Vacuum equipment labeled with
with the ATEX marking on the rating plate.
Operation is only permitted when in perfect working condition.
The product is designed for a low level of mechanical stress and
must be installed in such a way that it cannot sustain mechani-
cal damage from outside.
20901367_EN-US_PC3001 VARIO select Serie_V1.3_100720
has ATEX approval in line
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