7.3.3
Inlet-flange seals
The EXT250M is supplied with a seal to match the inlet-flange. The Item Numbers of
replacement seals are listed below.
Flange size
Inlet seal
Item Number
DN100ISO-K
ISO100 Trapped ‘O’ ring, fluoroelastomer
C105-23-001
DN100CF
100CF Copper gasket (pack of 5)
C082-00-003
7.3.4
EXC300M Controller
An EXC300M Controller is supplied with your EXT250M pump. The Item Number of a
replacement EXC300M is given below.
Controller
Voltage
Item Number
EXC300M
100-120/200-240 V
D396-15-000
7.3.5
Pump-to-controller cable
A pump-to-controller cable is supplied with your EXT250M pump. The Item Numbers of
replacement cables are given below.
Cable
Length
Item Number
EXT250M to EXC300M
1 m
D396-19-010
EXT250M to EXC300M
3 m
D396-19-030
EXT250M to EXC300M
5 m
D396-19-050
7.4
Accessories
7.4.1
Installation
The accessories available for use with the EXT250M are described in the following sections.
Figure 6 shows how the accessories are fitted to an EXT250M pump.
7.4.2
BX bakeout band
A BX bakeout band accelerates the degassing of the pump to enable it to achieve lower pressures.
It may also be used to protect the pump from condensation of contaminants. The bakeout bands
are available in 110-120 V or 220-240 V versions and may be powered from a rear panel socket on
the EXC300M Controller.
Bakeout band
Voltage
Item Number
BX250
110 V
B580-52-041
BX250
240 V
B580-52-061
34
EXT250M Turbomolecular Pump
