Operation
22 GA01601_002_C1 - 03/2018 - © Leybold
3.4 Electrical Connection
Risk due to high voltages
Death or severe injury caused by an electric shock.
The electrical connections must only be made by a trained electrician as
specified, for example, by the regulations EN 50110-1. Note the national
regulations of the country in which the equipment is being operated.
Electrical safety of the vacuum pump can only be ensured after it has been
installed in the leak detector. During servicing of the vacuum pump you
must make absolutely sure that the complete pump including the capacitor
is connected to ground.
The pumps are supplied with an AC motor.
The AC motor may be connected directly by means of a mains cord and a
plug to the mains power. Fusing must be provided always in accordance with
national and local regulations for single-phase mains power supplies (in
Germany 16 A). A check on the direction of rotation is not required since it is
fixed. A thermal motor protection with automatic reset will protect the motor
against overloads.
The mains voltage must comply with the voltage stated on the name plate.
Warning against automatic start-up
If the thermal overload protector shuts off the pump, the motor will restart
itself as soon as it cools. That’s why the mains plug should be discon-
nected from the mains before starting with any work on the pump.
Observe Safety Informations 0.2.
4 Operation
4.1 Media Compatibility
The TRIVAC D 2,5 E-LD pump can pump condensable gases and vapours,
provided that the gas ballast valve is open and the pump has attained its
operating temperature.
4.2 Start-up
Check the oil level each time before switching on the pump, see Section 5.3.
Operate the pump only with the oil level above the minimum. Open all blo-
cking devices in the exhaust line. Never operate the pump with a blocked or
constricted exhaust line.
The pump is started by plugging the mains plug into a mains outlet.
During initial start up and after a longer period during which the pump has
not been used, the pump may not immediately attain the specified ultimate
pressure because the oil has to be degassed first. For this you should let the
pump run for about 30 minutes with the intake line closed and the gas ballast
valve (5/7) open.
DANGER
WARNING
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