Figure 48. Sample Inlet End Of The Apci Probe Showing Locked And Unlocked - Thermo Scientific LTQ Series Hardware Manual

5
Maintenance
Ion Source Probe Maintenance
Removing the APCI Nozzle
Cleaning the APCI Nozzle
74 LTQ Series Hardware Manual
 To remove the APCI nozzle from the APCI probe
1. Place the mass spectrometer in Standby mode (see
temperature. See the temperature cautionary statement on
2. Hold the APCI probe body with one hand and with the other hand grasp the head of the
APCI nozzle assembly and rotate it counterclockwise until the flat sides of the head align
with the retention flanges
Figure 48. Sample inlet end of the APCI probe showing locked and unlocked nozzles
Locked nozzle
3. Carefully pull out the nozzle assembly.
CAUTION If the sample tube hits the sides of the vaporizer, it can break. To prevent
breakage, carefully pull the APCI nozzle straight back from the APCI probe.
4. Place the nozzle assembly on the clean, lint-free work surface.
For Field Service use only
O-ring, silicone, 0.312 in. ID, 1/16 in. thick
O-ring, Viton, 0.500 in. ID, 1/16 in. thick
page
(Figure 48).
Retention
flanges
Unlocked nozzle
35) and let it cool to room
page 72.
Part number
00107-04500
00107-05600
Thermo Scientific