4
2.1. Main Features
Turbopumps TPH/TPU 1201 P/P C with the TC 750 form a
complete unit. Voltage is supplied by power supply (see
Section 11. Accessories).
On delivery, the pumps have been set up for
operations in remote mode. Remote plug 8d
should therefore be disconnected from the
TC 750 if operations with the DCU 001/DCU 600
or HPU 001 are required.
CAUTION
Cooling
Standard:
Water cooling
Integrated protective measures against excess temperatures:
The Electronic Drive Unit TC 750 reduces
the rotor rotation speed.
Bearings
High vacuum side: Wear free permanent magnetic bearing.
Fore-vacuum side: Oil circulatory lubricated ball bearing
with ceramic balls.
2. Understanding The Pumps
The turbopumps must n
no
ott be transported when
filled with lubricant.
When being fitted into or dismantled from a
system, turbopumps may only be positioned as
shown in Section 3.2. Other positions can cause
the pumps to be contaminated with lubricant.
Ambient conditions
The turbomolecular pump needs to be installed in compliance
with the following ambient conditions:
Installation location:
protected against the weather
(rooms within buildings)
Temperature:
+5 °C to +40 °C
Relative humidity
of the air:
max. 80 % at T
≤
31 °C
up to max. 50% at T
≤
40 °C
Air pressure:
77 kPa - 106 kPa
Installation altitude:
2000 m max.
Pollution degree:
2
Overvoltage category:
II
Connection voltage:
140 VDC ±5%
Proper Use
– The Turbomolecular Pumps may only be used for the
purpose of generating vacuum.
– The Turbomolecular Pumps TPH/TPU 1201 P C (please see
the type plate) are designed to pump corrosive gases and
vapours. Where corrosive gas processes are involved, gas
bonding and particles which can damage the surfaces of
the pump can be produced. The motor and bearing
compartments have to be protected with sealing gas.
– The turbopumps may only be used to pump those media
against which they are chemically resistant. For other
media the operator is required to qualify the pumps for the
processes involved.
– If the process produces dust, the maintenance intervals
must be specified accordingly and sealing gas must be
used.
– If the pump is to be operated with more than 50% of the
permissible gas load then sealing gas should be used to
ensure rotor cooling.
– The turbopump must be connected to a backing pump in
accordance with Section 3.3..
– Only Pfeiffer Vacuum power supplies may be used to
operate the TC 750. The use of other power supplies requi-
res the prior agreement of the manufacturer and equalisa-
tion with the valid specification.
– Without the cover plate for the TC 750 the pumps may only
be operated providing the ambient conditions in complian-
ce with Protection Type IP 30 are observed.
CAUTION
Turbomolecular Pump TPH 1201 P / P C
1
High vacuum flange
2
Fore-vacuum flange
4
Venting screw
8
Electronic Drive Unit TC 750
8d Remote plug
9
Locking screw sealing gas connection
9
8
2
4
8d
1
F
