Electronic Unit Qme 250; Tbl. 6: Ion Sources For Analyzer Qma 250 M; Fig. 5: Components Of The Analyzer Qma 250 With Open Ion Source - Pfeiffer Vacuum PrismaPro QMG 250 Translation Of The Original

Type
open ion source
Cross beam ion source
Grid ion source
Tbl. 6:
1
18
Fig. 5:
1
2
3
4
5
6
7
8
9
10 Feedthrough
3.2.3 Electronic unit QME 250
The electronic unit is located on the analyzer and communicates with the host computer.
3)
Ion sources for analyzer QMA 250 M
2 3 4 5
17 16 15
Components of the analyzer QMA 250 with open ion source
Filament unit of ion source
Ion source
Fixing screw (3×) of ion source
Nut and adjusting screw for aligning
and securing the quadrupole rod sys-
tem in the jacket tube
Screws (2×) of the quadrupole mass
filter
Jacket tube
HF-connection for quadrupole rod sys-
tem
Fixing screws (2×) of connection
flange in the jacket tube
HF-connection for quadrupole rod sys-
tem
The ceramic insulators of the filament wiring are longer than the ceramic insulators of the ion source wiring.
Description
Standard ion source with maximum sensitivity
for molecular beam applications
for residual gas analysis in UHV (< 10
6 7 8 9 10
14 13
12
11 Fixing screw (2×) of electron multiplier in the jacket
tube
12 Fixing screw and lock washer (3×) of the analyzer at
the feedthrough
13 Fixing screws (2×) for HF connections of the quad-
rupole rod system
14 Screws (2×) of the quadrupole mass filter
15 Ceramic insulators of the ion source wiring
16
Ceramic insulators of the filament wiring
17 Ion source connections (3×)
18 Filament unit connections (3×)
19 Contacts on the analyzer
Product description
-8 hPa)
11
19
(see page 67)
3)
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