Connecting the air inlet solenoid valve to an inert gas line
This solenoid valve can be connected to an inert gas line.
To connect the solenoid valve to an inert gas line, the nitrogen supply must be clean and filtered and
must have the characteristics required (see chapter "Nitrogen characteristics").
1. Remove the dust filter from the solenoid valve.
2. Connect the inert gas line instead: 1/8’’ NPT female connector.
3. Bond the connection using oleo-waterproof glue, or put PTFE sealing on the threads.
4. Tighten the connection, applying a maximum tightening torque of 10 N·m.
5.8 Check that the installation is leaktight
When the product leaves the factory, product leaktightness under normal operating conditions is guar-
anteed. The operator must maintain this level of leaktightness, especially when pumping dangerous
gases. For more information concerning leak tests, please contact our service center.
1. Perform a leak test on the entire pumping line after installation.
2. Carry out regular checks to ensure that there are no traces of the pumped gases in the surround-
ing environment and that no air is entering the pumping line during operation.
5.9 Electrical connection
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 electric shock in case of contact with the mains connector at power-off
Certain components use capacitors that are charged up to over 60 VDC and that hold their electrical
charge
at power-off
: residual voltages due to filter capacitance can cause electric shock, up to and
including mains voltage levels.
► Wait 5 minutes after power-off before commencing work on the product.
NOTICE
Risk of electromagnetic disturbance
Voltages and currents can induce a multitude of electromagnetic fields and interference signals. In-
stallations that do not comply with the EMC regulations can interfere with other equipment and the
environment in general.
► Use shielded cables and connections for the interfaces in interference-prone environments.
Installation
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