LEYBOLD 250000V01, Руководство по эксплуатации

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Safety Information
GA10218_002_C0 - 10/2016 - © Leybold GmbH 7
inside it gets blear and milky at operating state temperature.
When turning the pump off water vapor condensates and raises the part of water in
the oil.
The leak detector must not directly be switched off after the process, in which
condensable gases or steams are pumped, is finished. It must be running (at least
20 minutes) with opened gas ballast valve until the oil of the pump is freed from
detached steam.

When not taking care of this instruction there can be a corrosion within the pump,
which will not be covered by our warranty.
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The height of the oil of the pump has to be controlled regularly.

The normal intervals of changing the oil from the producer have to be taken care of.
See instructions of the rotary vane pump.
The references to diagrams, e.g. (1/2) consist of the Fig. no. and the item No. in
that order.
We reserve the right to alter the design or any data given in these Operating
Instructions. The illustrations are not binding.
Retain the Operating instructions for further use.
Symbols of vacuum technology
Given in the following are some important symbols which are used in this Operating
Instructions.
Vacuum pump in general
Turbo molecular pump
Measuring instrument
Valve
Definition of Terms
The range of the preamplifier and the vacuum ranges are selected automatically.
The auto ranging feature of the PHOENIX L300i covers the entire range or leak
rates depending on the selected operating mode. Not only the leak rate signal, but
also the pressure in the test sample (inlet pressure P1) and the fore vacuum pres-
sure (P2) are used for control purposes. Range switching between the main ranges
is performed via valves. Fine range switching within the main ranges is implemen-
ted by switching over the gain factor of the preamplifier.
Figures
Auto ranging