WARNING
Risk of electric shock due to non-compliant electrical installations
This product uses mains voltage for its power supply. Non-compliant electrical installations or installa-
tions not done to professional standards may endanger the user’s life.
► Only qualified technicians trained in the relevant electrical safety and EMC regulations are au-
thorized to work on the electrical installation.
► This product must not be modified or converted arbitrarily.
► Check that the product is properly connected to the equipment’s or pumping installation’s emer-
gency stop circuit.
WARNING
Danger of electrocution by contact during maintenance or overhaul
There is an electric shock hazard in case of contact with a product powered on and not electrically
isolated.
► Before carrying out any work, set the main switch to
O
.
► Disconnect the power cable from the mains.
► Secure the installation correctly by tagging and locking (LO/TO) the system to prevent uninten-
tional re-engagement.
WARNING
Risk of serious injury caused by the separation of the pump when the rotor is blocked
If the pump is not secured properly
and the rotor suddenly becomes blocked, the turbomolecular
pump will detach from the equipment: the energy released could launch the entire pump or pieces of
the pump across the room. This could cause severe, possibly fatal, injuries as well as serious proper-
ty damage.
► Strictly comply with the installation instructions described in this manual. Pfeiffer Vacuum will be
released from any warranty and liability for non-compliance with installation instructions.
► Only use approved original parts from Pfeiffer Vacuum for connection to the equipment (see ac-
cessories).
WARNING
Risk of poisoning when process gases are present in the atmosphere
The manufacturer has no control over the types of gases used with the pump. Process gases are of-
ten toxic, flammable, corrosive, explosive and/or otherwise reactive. There is a risk of serious or fatal
injury if these gases are allowed to escape freely into the atmosphere.
► Apply the relevant safety instructions in accordance with local regulation. This information is
available from the operator’s safety department.
►
Always connect the turbomolecular pump’s exhaust to a backing pump compatible with
process gases
: the backing pump’s exhaust is connected to the installation’s dangerous gas ex-
traction system
► Regularly check that there are no leaks where the pump connects to the exhaust pipework.
WARNING
Risk of injury in case of contact with pressurized nitrogen
The product uses pressurized nitrogen as a flushing gas. Non-compliant installations or installations
not done to professional standards may endanger the user’s life.
► Install a manual valve on the circuit at a distance of 3 m from the product, so that the nitrogen
supply can be locked out.
► Observe the recommended supply pressure.
► Always lock out and disconnect the nitrogen circuit before working on the product.
► When carrying out maintenance, secure the installation properly by locating and locking out the
pressurized nitrogen circuit to prevent it from being re-engaged by accident (LO/TO Lock
Out/Tag Out procedure).
► Regularly check the condition of the pipework and supply circuit connections.
Safety
12/78
