2.3 Safety precautions
Duty to provide information on potential dangers
The product holder or user is obliged to make all operating personnel aware of dangers
posed by this product.
Every person who is involved in the installation, operation or maintenance of the product
must read, understand and adhere to the safety-related parts of this document.
Infringement of conformity due to modifications to the product
The Declaration of Conformity from the manufacturer is no longer valid if the operator
changes the original product or installs additional equipment.
● Following the installation into a system, the operator is required to check and re-evalu-
ate the conformity of the overall system in the context of the relevant European Direc-
tives, before commissioning that system.
General safety precautions when handling the product
► Observe all applicable safety and accident prevention regulations.
► Check that all safety measures are observed at regular intervals.
► Do not expose body parts to the vacuum.
► Always ensure a secure connection to the earthed conductor (PE).
► Never disconnect plug connections during operation.
► Observe the above shutdown procedures.
► Keep lines and cables away from hot surfaces (> 70 °C).
► Never fill or operate the unit with cleaning agents or cleaning agent residues.
► Do not carry out your own conversions or modifications on the unit.
► Observe the unit protection class prior to installation or operation in other environments.
► Provide suitable touch protection, if the surface temperature exceeds 70 °C.
2.4 Limits of use of the product
Parameter
Hena 50
Hena 70
Installation location
● Indoors, protected from dust deposits
● Outdoors, protected from direct weather influences
Installation altitude
max. 2000 m above sea level
Orientation
horizontal
permissible angle of inclination
±1 °
Pumped medium intake temperature, max.
+40 °C
Ambient temperature
+12
℃
to +40
℃
Ambient temperature without NRTL plate
and CB certificate
+12
℃
to +50
℃
Relative air humidity
max. 80 %
Permissible operating pressure range dur-
ing continuous operation
< 20 hPa unlimited
Exhaust pressure
Atmospheric pressure
Tbl. 3:
Limits of use of the product
2.5 Proper use
► Use the vacuum pump for vacuum generation only.
► When pumping media with an oxygen concentration level of ≥ 21 %, only use perfluorinated, syn-
thetic oils (YLC 250 B, A113) as operating fluid.
► Adhere to the installation, commissioning, operating, and maintenance instructions.
► Do not use any accessory parts other than those recommended by Pfeiffer Vacuum.
Safety
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