![Thermo Finnigan LCQ Deca XP Plus Скачать руководство пользователя страница 63](http://html.mh-extra.com/html/thermo-finnigan/lcq-deca-xp-plus/lcq-deca-xp-plus_hardware-manual_1104316063.webp)
System Shutdown, Startup, and Reset
__________________________________Starting Up the System after a Complete Shutdown
__________________ LCQ Deca XP Plus Hardware Manual __________________
3-7
•
After several more seconds, the Communication LED is illuminated
green to indicate that the data system and the MS detector have
established a communication link. Software for the operation of the
MS detector is then transferred from the data system to the MS
detector.
•
After 3 min, the System LED is illuminated yellow to indicate that the
software transfer from the data system to the MS detector is complete
and that the instrument is in Standby condition.
Setting Up Conditions for Operation
Set up your XP Plus for operation, as follows:
1. Before you begin data acquisition with your XP Plus system, you need to
allow the system to pump down for at least 1 hour. Operation of the
system with excessive air and water in the vacuum manifold can cause
reduced sensitivity, tuning problems, and a reduced lifetime of the
electron multiplier.
2. Ensure that the helium pressure and nitrogen pressure are within the
operational limits (helium: 40
±
10 psig [275
±
70 kPa], nitrogen:
100
±
20 psig [690
±
140 kPa]).
3. Select the Status View button in the Tune Plus window. Check to see if
the pressure measured by the ion gauge is below about 5
×
10
-5
Torr, and
the pressure measured by the Convectron gauge is around 1 Torr.
Compare the values of the other parameters in the status panel with values
that you recorded previously.
4. Continue to set up for ESI or APCI operation as you normally do.
Note. The Vacuum LED on the front panel of the MS detector is illuminated
green only if the pressure in the vacuum manifold is below the maximum
allowable pressure (5
×
10
-4
Torr in the analyzer region, and 2 Torr in the
capillary-skimmer region), and the safety interlock switch on the API source
is depressed (that is, the API flange is secured to the spray shield).
Note. Air in the helium line must be purged or given sufficient time to be
purged for normal XP Plus performance
Содержание LCQ Deca XP Plus
Страница 1: ...LCQ Deca XP Plus Hardware Manual Revision A 97344 97003 TM ...
Страница 46: ......
Страница 56: ......
Страница 70: ......
Страница 114: ...INSERT Figure5_2 ps 11 X 17 Z fold Figure 5 2 Mass analyzer and ion optics ...
Страница 172: ......
Страница 194: ......
Страница 216: ......