![Thermo Finnigan LCQ Deca XP Plus Hardware Manual Download Page 81](http://html.mh-extra.com/html/thermo-finnigan/lcq-deca-xp-plus/lcq-deca-xp-plus_hardware-manual_1104316081.webp)
User Maintenance
______________________________________________________ API Source Maintenance
__________________ LCQ Deca XP Plus Hardware Manual _________________
4-11
2. Loosen the two flange retainer bolts that secure the API flange (APCI or
ESI) to the spray shield.
3. Pull back the API flange from the spray shield.
4. Clear the bore of the ion transfer capillary by inserting and withdrawing
the 28 gauge, 10-in. hypodermic tube (P/N 00106-20000) included in
your accessory kit.
5. Fill a spray bottle with a 50:50 solution of HPLC-grade methanol/distilled
water. From a distance of 10 cm from the entrance end of the ion transfer
capillary, spray a small amount of the solution down the bore of the ion
transfer capillary.
6. Repeat steps 5 and 6 several times.
7. Push the API flange assembly against the spray shield.
8. Secure the API flange to the spray shield with the two flange retainer
bolts.
Maintaining the APCI Probe
The APCI probe requires a minimum of maintenance. The APCI sample tube
(150-
µ
m ID fused-silica tubing) is preloaded at the factory. However, if the
sample tube becomes obstructed with salt precipitates or is broken, you need
to replace it. Also, you may need to disassemble the APCI probe for cleaning
or to replace a part.
CAUTION. The APCI vaporizer typically operates at 400 to 600
°
C and
the ion sweep cone, spray cone, and ion transfer capillary typically operate
at 100 to 300
°
C. Allow these components to come to ambient temperature
before proceeding.
Note. If you have unblocked the ion transfer capillary, the Convectron
gauge pressure should increase to a normal value (approximately 1 Torr). If
you can not clear the ion transfer capillary by this method, use the
instructions for removing the ion transfer capillary from the spray shield in
the topic
on page 4-27. Then, if you wish,
try clearing the ion transfer capillary from the exit end by the same method.
Otherwise, replace the ion transfer capillary with a new one.
Summary of Contents for LCQ Deca XP Plus
Page 1: ...LCQ Deca XP Plus Hardware Manual Revision A 97344 97003 TM ...
Page 46: ......
Page 56: ......
Page 70: ......
Page 114: ...INSERT Figure5_2 ps 11 X 17 Z fold Figure 5 2 Mass analyzer and ion optics ...
Page 172: ......
Page 194: ......
Page 216: ......