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162
Troubleshooting and Maintenance Guide
10
General Maintenance
To Adjust the Quad Frequency
Materials needed
•
Screwdriver, flat-blade, large (8730-0002)
Procedure
1
Make sure the MSD is at thermal equilibrium. It takes at
least 2 hours
after
all heated zones have reached their
setpoints for the MSD to reach thermal equilibrium.
2
Open the analyzer cover.
3
Make sure the RF cover on the side board is secure and no
screws are missing. A loose RF cover or missing screw can
significantly
affect coil adjustment.
4
In the
Tune and Vacuum Control
view, select
Optimize Quadropole
Frequency
from the
Execute
menu.
5
Enter an
m/z
value of 100.
6
Slowly turn the quad frequency adjustment screws to
minimize the voltage displayed (
).
Turn the adjustment screws alternately. Turn each screw
only a little bit at a time. Keep the screws at
equal
extension. The minimum voltage is typically between 50 and
70 mV.
7
When the voltage is minimized, click
Stop
.
WA R N I N G
Do not remove any other covers. Dangerous voltages are present
under these covers.
C A U T I O N
Do not use a coin to adjust the screws. If you drop it, it could fall into
the electronics fan and cause significant damage.
Содержание 5975T LTM GC/MSD
Страница 1: ...Agilent Technologies Agilent 5975T LTM GC MSD Troubleshooting and Maintenance Guide...
Страница 10: ...10 Troubleshooting and Maintenance Guide...
Страница 32: ...32 Troubleshooting and Maintenance Guide 2 Concepts and General Tasks...
Страница 72: ...72 Troubleshooting and Maintenance Guide 3 Chromatographic Symptoms...
Страница 86: ...86 Troubleshooting and Maintenance Guide 5 ALS Symptoms...
Страница 98: ...98 Troubleshooting and Maintenance Guide 7 Instrument Power On and Communication Symptoms...
Страница 108: ...108 Troubleshooting and Maintenance Guide 9 Troubleshooting Tasks...
Страница 150: ...150 Troubleshooting and Maintenance Guide 10 General Maintenance Figure 16 Replacing filaments Filament 1 Filament 2...
Страница 166: ...166 Troubleshooting and Maintenance Guide 10 General Maintenance...
Страница 214: ...214 Troubleshooting and Maintenance Guide 13 Analyzer...
Страница 239: ...Parts 15 Troubleshooting and Maintenance Guide 239 Figure 39 LCP replacement parts LCP assembly and fascia...