Installation
14
GA 05.139/1.02 - 06/99
1
2
1 Aluminum cover
2 Screws
Fig. 10 Removing the transport seal
2.3 Operating environment
When using the MAG inside a magnetic field, the
magnetic induction at the pump housing must not ex-
ceed 5 mT; (1 mT (milliTesla) = 10 G (Gauß))
Exceeding this limit can cause excessive rotor heating
due to the eddy currents generated in this situation. It is
therefore necessary to provide suitable shielding in such
cases.
The standard version of the MAG is resistant to radiation
at levels up to 10
3
Gy. (1 Gy (Gray) = 100 rad)
The ambient temperature must not exceed 40°C
(104 °F).
The noise level when the pump is running is below 70
dB(A). No acoustic insulation is required.
2.4 Connecting the MAG to
the vacuum chamber
The MAG is shipped in a sealed PE bag with desiccant.
Do not open the package until immediately before instal-
ling.
Do not remove the covers and blanking flanges until you
are ready to make the connections, to ensure that the
MAG is installed under the cleanest possible conditions.
Pay attention to maximum cleanliness when connecting.
Remove the transport seal from the intake flange. To do
so unscrew the screws (10/2) and remove the aluminum
cover. We recommend saving the transport seal for
maintenance.
Foreign objects entering the pump through the high-va-
cuum flange can cause serious damage to the rotor.
That’s why the splinter guard must always be installed.
Damages caused during operation without the splinter
guard are excluded from warranty.
Caution
Install the splinter guard as shown in Fig.
11. Installing the splinter guard upside down
may lead to contact between splinter guard
and rotor during fast venting of the pump.
Correct
Wrong
Fig. 11 Installing the splinter guard
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