2 Important Safety Information
Pressures given in bar or mbar are absolute values. If exceptionally a gauge pressure is
meant, a “g” is added (for example, bar (g)).
2.1 Mechanical Hazards
1.
Avoid exposing any part of the human body to the vacuum.
2.
Select a secure place for the appliance (level surface).
3.
Never operate the pump without a connected intake line or without fitting a blank
flange.
4.
The discharge port of the pump must not be blocked or constricted. Never operate
the pump with a seal-off stopper in place blanking off the exhaust port. Operate the
pump only with a connected vacuum system to the intake flange.
5.
With a closed exhaust pipe, the pump can generate up to 1.5 bar (g) overpressure
on the exhaust. The exhaust pipes should be laid out accordingly.
6.
Condensates from the pump can collect inside or at the exhaust, escape and spill
onto the floor, when operating the pump without an exhaust line or during transport
with an exhaust being not blanked off. In this case there exists the risk of slipping.
7.
Take note of the labelling of inlet and outlet. A mix-up can lead to dangerous build-
up of pressure in the vacuum system or in the system. After each change of the
electrical connection, check the pump's rotational direction.
8.
In case of power supply outage, the vacuum system is ventilated by the pump. If
this is not wanted, install a non-return valve at the inlet.
9.
After a loss of power, the pump restarts independently. If this is not wanted, install a
restart inhibitor.
10.
Do not operate the pump with any of the covers removed. This may result in serious
injury.
WARNING:
When rotated in the wrong direction, the pump will generate up to 4.5bar (g) pressure
at the inlet. If a vacuum system is connected, the pressure build up can lead to
explosion of the system.
2.2 Electrical Hazards
1.
Housing parts must not be removed.
2.
The electrical connection must only be provided by a trained person.Obey the
national regulations in the country of use like EN 50110-1 for Europe.
3.
Note the information on the IP type of protection.
DANGER:
After a mains power failure the pump will run up automatically again. This also applies
in the case of an emergency shut-down. In order to prevent the pump from running
up automatically again, the pump must be integrated within a control arrangement
such that it can only be switched on manually again after the mains power has
returned.
7
300766038_002 - © Leybold
Important Safety Information
Summary of Contents for 111065
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