Micromass Quattro Ultima, User Manual

Page: 195 / 227

Insert the thermocouple into its location, and secure it with the clip.
Reconnect the heater leads and heater supply leads to the terminal block,
carefully bending the supply leads as necessary.
Replace the cover plate.
Check that the isolation valve is closed.
On the tune page select Other and click on Pump .
Replace the PTFE exhaust liner and cleanable baffle, if removed.
Replace the sample cone, gasket and sample cone nozzle on the ion block.
Reconnect the cone gas supply.
When the instrument has pumped down:
Open the isolation valve.
Fit the APcI corona discharge pin or blanking plug, as necessary.
Fit the source enclosure and the probe adjustment flange.
The Discharge Pin
If the corona discharge pin becomes dirty or blunt:
Remove it from the source.
Clean and sharpen it using 600 grade emery paper.
If the needle becomes bent or otherwise damaged it should be replaced.
Maintenance and Fault Finding
Page 195
Quattro Ultima
User's Guide