8
3.6. Connecting The Sealing Gas
To protect the pump, particularly where corrosive or dust pro-
ducing processes are involved, it is necessary to use sealing
gas. Connection is made via the sealing gas valve (please see
“Accessories”).
For this, please refer to Section 2.1. "Main
Features" for the sealing gas connection.
Please refer to Operating Instructions PM 800 229 BN for
details on installing the sealing gas valve and adjusting the
sealing gas flow.
3.7. Connecting The Casing Heating Unit
Final pressures are attained more rapidly when turbopump
and vacuum chamber are heated.
The heating duration is dependent on the degree of contami-
nation and on the required final pressure. The heating should
last for at least 4 hours.
Where casing heating unit is involved the turbo-
pump must be water cooled.
High temperatures arise when baking out turbo-
pumps and vacuum chambers. There is a dan-
ger of burns from touching hot parts, even after
the heating has been switched off.
Ideally, the heating sleeve, pump casing and
vacuum chamber should be insulated during installation.
When baking out do not touch the heating sleeve, pump
casing and vacuum chamber.
➡
Screw the heating sleeve tightly onto the casing with the
securing screws and fit protection against accidental
contact.
➡
Electrical connection, casing heating unit: Please see
Operating Instructions PM 800 478 BN for the TCM 1601.
☞
PLEASE NOTE
☞
PLEASE NOTE
51
53
52
50
54
57
Connecting the magnetic bearing controller with the turbopump
50 Magnetic Bearing Controller TCM
51 Bayonet plug - TCM
52 Connecting cable TCM - TMP
53 Bayonet plug TMP
54 Venting Valve TVF 005
57 Control line
Before disconnecting the plug connection:
– Rotor rotation speed = 0 Hz
– Disconnect the magnetic bearing controller
from the mains.
Voltages of up to 150 V can be present on the
open contacts of a running-down pump.
There is a danger of an electrical shock from
touching the contacts.
3.8. Connecting The Magnetic Bearing
Controller
➡
Plug in the connecting cable between the magnetic
bearing controller and the turbopump.
Caution! Take care to ensure that the cable
plugs are put straight onto the built-in plugs to
avoid damage to the connecting points.
For details please refer to the operating instruc-
tions for the Magnetic Bearing Controller
TCM 1601/PM 800 478 BN.
