Waters Xevo TQ MS Operator's, Overview And Maintenance Manual page 59

3. Tighten the probe locking ring to secure the probe in place.
APCI probe mounted on the source enclosure:
Vernier probe adjuster
Source window
4. Open the access door to the fluidics valve (see the figure on
Warning:
tubing to connect the diverter valve to the APCI probe; use the
PEEK tubing supplied with the instrument.
5. Using tubing greater than or equal to 0.004-inch ID, connect port 2 (the
top port) of the diverter valve to the APCI probe.
Recommendation:
for sample flow rates ≤ 1.2 mL/min; use 0.005-inch ID tubing for sample
flow rates > 1.2 mL/min.
If you are replacing the tubing supplied with the
Requirement:
instrument, minimize the length of the tube connecting the diverter
valve to the APCI probe. Doing so minimizes delays and dispersion.
6. Close the access door.
7. Install the corona pin (see
page 90).
To avoid electric shock, do not use stainless steel
To reduce peak broadening, use 0.004-inch ID tubing
"Installing the corona pin in the source" on
February 11, 2013, 71500130002 Rev. D
APCI probe
Probe locking ring
Vertical probe
adjuster
Source enclosure
release
TP03128
page
APCI mode
24).
59