8
Product description
Fig. 2: View of CompactTurbo™ TMH 261
Cooling
• Air cooling
• Water cooling
In the case of excess temperature the electronic drive unit reduces the rotor rota-
tion speed automatically. Depending on the application and the CompactTurbo™
different cooling variants are selectable.
Rotor bearings
• High vacuum side: maintenance-free permanent magnetic bearing.
• Fore-vacuum side: ceramic ball bearing.
4.3 Range of application
The pumps TMH/U 261 must be installed and operated in the following ambient
conditions.
4
High vacuum flange
8
Electronic drive
unit TC 600
17
Venting screw
20a
Fore-vacuum flange
98
Remote plug
H
F
VV
4
17
20a
8
98
NOTE
Observe the connection instructions!
On delivery turbopumps with TC 600 are set up for operations with "Remote Control".
Î
Before operating with DCU, HPU or PC the 15-pole D-Sub connector (remote plug)
must be removed from the TC 600.
Installation location
weather protected (indoors)
Temperature
+5 °C to +40 °C (up to +35 °C with air cooling)
Protection class
IP 30
Relative humidity
max. 80 %, at T
≤
31 °C, up to max. 50% at T
≤
40 °C
Atmospheric pressure:
77 kPa - 106 kPa
Installation altitude
2000 m max.
Degree of pollution
2
Permissible surrounding magnetic field
≤
6 mT
Overvoltage category
II
Connection voltage TC
48 VDC ±5%
